Merge pull request '������� �� Avalonia 2.0 (�����-���������, ����������, �������� ��������)' (#1) from feature/avalonia-ui into master

- Прайс-лист: дропдаун «Мои прайсы» (подключённые прайсы + «Все прайсы»),
  выбор фильтрует каталог по price_list_id; один прайс — выбирается сам
- Загрузить: показывает список подключённых прайсов и качает их
- Core: GetBuyerPriceListsAsync + priceListId в GetPriceSummaryAsync

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.gitignore

@@ -20,3 +20,13 @@ Desktop.ini
 efClient.db
 *.db-journal
 **/user.config
+
+packages/
+installer/output/
+dist/
+
+
+# Кросс-платформенные публикации и артефакты сборки
+publish/
+build/
+installer/output/

Elfisa.Cross.slnx

@@ -0,0 +1,6 @@
+<Solution>
+  <Folder Name="/src/">
+    <Project Path="src/Elfisa.Avalonia/Elfisa.Avalonia.csproj" />
+    <Project Path="src/Elfisa.Core/Elfisa.Core.csproj" />
+  </Folder>
+</Solution>

dist/Электронная-Фармация/Электронная Фармация.exe.config

@@ -29,6 +29,9 @@
       <setting name="IntDefaultPercentMarkup" serializeAs="String">
         <value>0</value>
       </setting>
+      <setting name="ClientMarkupPercent" serializeAs="String">
+        <value>0</value>
+      </setting>
       <setting name="stringLogin" serializeAs="String">
         <value />
       </setting>
@@ -38,6 +41,21 @@
       <setting name="stringToken" serializeAs="String">
         <value />
       </setting>
+      <setting name="InvoiceExportPath" serializeAs="String">
+        <value />
+      </setting>
+      <setting name="UpdateCheckBaseUrl" serializeAs="String">
+        <value>https://git.24pharmdata.ru</value>
+      </setting>
+      <setting name="UpdateRepo" serializeAs="String">
+        <value>pharmdata/elfisa-pharmacy</value>
+      </setting>
+      <setting name="UpdateApiToken" serializeAs="String">
+        <value />
+      </setting>
+      <setting name="UpgradeSettings" serializeAs="String">
+        <value>True</value>
+      </setting>
     </Электронная_Фармация.Properties.Settings>
   </userSettings>
   <runtime>

installer/ElfisaPharmacy.iss

@@ -0,0 +1,108 @@
+; ЭльФиСА — установщик «Электронная Фармация»
+; Кодировка: UTF-8 with BOM
+
+#define MyAppName "Электронная Фармация"
+#define MyAppBrand "ЭльФиСА"
+#define MyAppVersion "2.0.1"
+#define MyAppPublisher "PharmData"
+#define MyAppURL "https://cdn.24pharmdata.ru"
+#define MyAppSupportURL "https://24pharmdata.ru"
+#define MyAppExeName "Электронная Фармация.exe"
+#define MyAppId "{{A7C4E2B1-9F3D-4E6A-8B2C-1D5F7A9E0C42}"
+
+[Setup]
+AppId={#MyAppId}
+AppName={#MyAppName}
+AppVersion={#MyAppVersion}
+AppVerName={#MyAppBrand} — {#MyAppName} {#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+AppPublisherURL={#MyAppSupportURL}
+AppSupportURL={#MyAppSupportURL}
+AppUpdatesURL={#MyAppURL}
+; Программа — в LocalAppData (без прав админа). База/логи — тоже в профиле пользователя.
+DefaultDirName={localappdata}\{#MyAppBrand}\{#MyAppName}
+DefaultGroupName={#MyAppBrand}
+DisableProgramGroupPage=no
+LicenseFile=license.txt
+InfoBeforeFile=welcome.txt
+OutputDir=output
+OutputBaseFilename=ElfisaPharmacy-Setup-{#MyAppVersion}
+SetupIconFile=assets\elfisa.ico
+UninstallDisplayIcon={app}\{#MyAppExeName}
+UninstallDisplayName={#MyAppBrand} — {#MyAppName}
+Compression=lzma2/ultra64
+SolidCompression=yes
+WizardStyle=modern
+WizardSizePercent=120
+WizardImageFile=assets\wizard-side.bmp
+WizardSmallImageFile=assets\wizard-small.bmp
+WizardImageStretch=yes
+AllowNoIcons=yes
+PrivilegesRequired=lowest
+PrivilegesRequiredOverridesAllowed=dialog
+ArchitecturesInstallIn64BitMode=x64compatible
+VersionInfoVersion={#MyAppVersion}.0
+VersionInfoCompany={#MyAppPublisher}
+VersionInfoDescription=Установщик {#MyAppBrand} — {#MyAppName}
+VersionInfoProductName={#MyAppName}
+VersionInfoProductVersion={#MyAppVersion}
+VersionInfoCopyright=Copyright (C) {#MyAppPublisher}
+ShowLanguageDialog=no
+DisableWelcomePage=no
+DisableDirPage=no
+DisableFinishedPage=no
+CloseApplications=yes
+RestartApplications=no
+SetupLogging=yes
+
+[Languages]
+Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
+
+[Messages]
+russian.BeveledLabel={#MyAppBrand} · PharmData
+russian.WelcomeLabel1=Добро пожаловать в установку [name]
+russian.WelcomeLabel2=Мастер установит [name/ver] на ваш компьютер.%n%nРекомендуется закрыть все другие приложения перед продолжением.%n%nНажмите «Далее», чтобы продолжить.
+russian.FinishedLabel=Установка [name] успешно завершена.%n%nПриложение готово к работе. При первом запуске выполните вход в систему.
+russian.ClickFinish=Нажмите «Готово», чтобы выйти из мастера установки.
+russian.SelectTasksDesc=Выберите дополнительные задачи, затем нажмите «Далее».
+russian.SelectTasksLabel2=Какие дополнительные задачи нужно выполнить?
+russian.WizardSelectTasks=Дополнительные задачи
+russian.WizardReady=Всё готово к установке
+russian.ReadyLabel1=Мастер готов установить [name] на ваш компьютер.
+russian.ReadyLabel2a=Нажмите «Установить», чтобы продолжить, или «Назад», если хотите просмотреть либо изменить параметры.
+russian.InstallingLabel=Подождите, пока [name] устанавливается на ваш компьютер…
+russian.StatusExtractFiles=Распаковка файлов…
+russian.StatusCreateDirs=Создание папок…
+russian.StatusRegisterFiles=Регистрация компонентов…
+russian.ConfirmUninstall=Вы действительно хотите удалить %1 и все его компоненты?
+russian.UninstalledAll=%1 успешно удалена.
+russian.ExitSetupMessage=Установка не завершена. Если вы выйдете сейчас, программа не будет установлена.%n%nВы можете запустить установщик позже.%n%nВыйти из установки?
+
+[CustomMessages]
+russian.CreateDesktopIcon=Создать ярлык на рабочем столе
+russian.LaunchAfterInstall=Запустить Электронную Фармацию
+russian.AppWorkingDir=Рабочая папка программы
+russian.AdditionalIcons=Дополнительные ярлыки:
+russian.BrandLine=ЭльФиСА — удобный заказ лекарств для аптек
+
+[Tasks]
+Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
+
+[Files]
+; Avalonia self-contained выпуск (весь рантайм .NET внутри — без зависимостей у клиента).
+; Сборка кладётся в ..\publish\win-x64 скриптом build-installer.ps1, exe уже переименован
+; в «Электронная Фармация.exe» (совместимо с авто-обновлением старых клиентов).
+Source: "..\publish\win-x64\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
+Source: "assets\elfisa.ico"; DestDir: "{app}"; DestName: "elfisa.ico"; Flags: ignoreversion
+
+[Icons]
+Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; IconFilename: "{app}\elfisa.ico"; Comment: "{cm:BrandLine}"
+Name: "{group}\Удалить {#MyAppName}"; Filename: "{uninstallexe}"; IconFilename: "{app}\elfisa.ico"
+Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; IconFilename: "{app}\elfisa.ico"; Comment: "{cm:BrandLine}"; Tasks: desktopicon
+
+[Run]
+Filename: "{app}\{#MyAppExeName}"; Description: "{cm:LaunchAfterInstall}"; Flags: nowait postinstall skipifsilent
+
+[UninstallDelete]
+Type: filesandordirs; Name: "{app}\Logs"
+Type: files; Name: "{app}\*.pdb"

installer/README.md

@@ -0,0 +1,24 @@
+# Установщик ЭльФиСА
+
+## Публичная ссылка (CDN)
+
+https://cdn.24pharmdata.ru
+
+При открытии корня CDN сразу скачивается установщик.
+
+Стабильное имя файла:
+
+https://cdn.24pharmdata.ru/ElfisaPharmacy-Setup.exe
+
+## Локальная сборка
+
+- `installer/output/ElfisaPharmacy-Setup-1.0.20.exe`
+- `installer/output/ElfisaPharmacy-Setup.exe` (копия для CDN)
+
+## Пересборка
+
+```powershell
+.\scripts\build-installer.ps1
+```
+
+После сборки залейте `ElfisaPharmacy-Setup.exe` на CDN (или сделайте его index/default document).

installer/license.txt

@@ -0,0 +1,18 @@
+ЛИЦЕНЗИОННОЕ СОГЛАШЕНИЕ
+Электронная Фармация (ЭльФиСА)
+
+1. Программа предоставляется для использования в рамках договора
+   с поставщиком услуг PharmData / 24pharmdata.
+
+2. Запрещается передавать третьим лицам учётные данные доступа,
+   а также модифицировать клиент способом, нарушающим безопасность
+   обмена данными.
+
+3. Пользователь несёт ответственность за корректность оформляемых
+   заказов и за сохранность локальных данных на рабочем месте.
+
+4. Устанавливая программу, вы подтверждаете согласие с условиями
+   использования сервиса и политикой обработки данных, действующими
+   у оператора сервиса.
+
+При возникновении вопросов обратитесь в службу поддержки.

installer/welcome.txt

@@ -0,0 +1,20 @@
+ЭльФиСА — Электронная Фармация
+================================
+
+Добро пожаловать в установку настольного клиента «Электронная Фармация».
+
+Программа предназначена для работы аптек с прайс-листами поставщиков,
+заказами, накладными и обменом данными с сервером PharmData.
+
+Скачать установщик всегда можно по адресу:
+  https://cdn.24pharmdata.ru
+
+Установщик:
+  • скопирует программу в выбранную папку;
+  • предложит ярлык в меню «Пуск»;
+  • по желанию создаст ярлык на рабочем столе.
+
+Рекомендуется закрыть запущенную «Электронную Фармацию» перед установкой.
+После установки при первом запуске выполните вход в систему.
+
+© PharmData / ЭльФиСА

scripts/build-installer.ps1

@@ -0,0 +1,59 @@
+#Requires -Version 5.1
+param([switch]$SkipBuild)
+$ErrorActionPreference = "Stop"
+$root = Resolve-Path (Join-Path $PSScriptRoot "..")
+Set-Location $root
+Write-Host "Root: $root" -ForegroundColor Cyan
+
+$iscc = @(
+    "$env:LocalAppData\Programs\Inno Setup 6\ISCC.exe",
+    "${env:ProgramFiles(x86)}\Inno Setup 6\ISCC.exe",
+    "${env:ProgramFiles}\Inno Setup 6\ISCC.exe"
+) | Where-Object { Test-Path $_ } | Select-Object -First 1
+
+if (-not $iscc) {
+    throw "Inno Setup 6 (ISCC.exe) не найден. Установите: winget install JRSoftware.InnoSetup"
+}
+
+$pub = "publish\win-x64"
+if (-not $SkipBuild) {
+    Write-Host "Публикация Avalonia (win-x64, self-contained)..." -ForegroundColor Cyan
+    if (Test-Path $pub) { Remove-Item $pub -Recurse -Force }
+    dotnet publish "src\Elfisa.Avalonia\Elfisa.Avalonia.csproj" -c Release -r win-x64 `
+        --self-contained true -p:PublishSingleFile=false -p:DebugType=none -o $pub
+    if ($LASTEXITCODE -ne 0) { throw "Публикация приложения завершилась с ошибкой" }
+}
+
+# Имя exe, совместимое с авто-обновлением старых WinForms-клиентов
+# (батч-апдейтер перезапускает файл по имени «Электронная Фармация.exe»).
+# apphost находит свой .dll независимо от имени exe, поэтому переименование безопасно.
+$srcExe = Join-Path $pub "Elfisa.Avalonia.exe"
+$dstExe = Join-Path $pub "Электронная Фармация.exe"
+if (Test-Path $srcExe) { Move-Item $srcExe $dstExe -Force }
+elseif (-not (Test-Path $dstExe)) { throw "Не найден собранный exe в $pub" }
+
+Write-Host "Сборка установщика..." -ForegroundColor Cyan
+& $iscc "installer\ElfisaPharmacy.iss"
+if ($LASTEXITCODE -ne 0) { throw "Inno Setup завершился с ошибкой" }
+
+$out = Get-ChildItem "installer\output\ElfisaPharmacy-Setup-*.exe" |
+    Where-Object { $_.Name -notmatch '\.bak\.' -and $_.Name -ne 'ElfisaPharmacy-Setup.exe' } |
+    Sort-Object LastWriteTime -Descending |
+    Select-Object -First 1
+
+if (-not $out) {
+    throw "Не найден собранный Setup exe в installer\output"
+}
+
+# Стабильное имя для CDN: https://cdn.24pharmdata.ru/ElfisaPharmacy-Setup.exe
+$stable = Join-Path $out.DirectoryName "ElfisaPharmacy-Setup.exe"
+Copy-Item $out.FullName $stable -Force
+
+Write-Host ""
+Write-Host "Готово: $($out.FullName)" -ForegroundColor Green
+Write-Host "CDN-файл: $stable" -ForegroundColor Green
+Write-Host ("Размер: {0:N1} МБ" -f ($out.Length / 1MB))
+Write-Host ""
+Write-Host "Залейте на CDN:" -ForegroundColor Cyan
+Write-Host "  https://cdn.24pharmdata.ru/  <- корень отдаёт этот Setup"
+Write-Host "  или файл: ElfisaPharmacy-Setup.exe"

src/ElectronicPharmacy/App.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <configSections>
     <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->

src/ElectronicPharmacy/Classes/ApiClient.cs

@@ -374,6 +374,108 @@ namespace Электронная_Фармация.Classes
             }
         }
 
+        /// <summary>
+        /// Отчёт покупателя: позиции его заказов за период. Сервер скоупит по JWT покупателя.
+        /// </summary>
+        public async Task<List<BuyerReportLineDto>> GetBuyerReportAsync(DateTime from, DateTime to)
+        {
+            EnsureAuthenticated();
+            var path = $"/api/buyer/report?date_from={from:yyyy-MM-dd}&date_to={to:yyyy-MM-dd}";
+            var responseBody = await SendAuthorizedGetAsync(path, "формирование отчёта");
+            try
+            {
+                var response = JsonSerializer.Deserialize<BuyerReportResponse>(responseBody, JsonOptions);
+                return response?.Lines ?? new List<BuyerReportLineDto>();
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Error("ApiClient", "Не удалось разобрать отчёт", ex);
+                throw new HttpRequestException($"Некорректный ответ сервера при формировании отчёта: {ex.Message}", ex);
+            }
+        }
+
+        /// <summary>
+        /// Отправляет свободный запрос («промт») ИИ-сервису и получает готовый
+        /// документ (Word/Excel). Токен покупателя уходит в теле — сервис ходит на
+        /// платформу от его имени и видит ТОЛЬКО его данные.
+        /// </summary>
+        public async Task<AiReportResult> GenerateAiReportAsync(string prompt, string format = "docx")
+        {
+            EnsureAuthenticated();
+            if (string.IsNullOrWhiteSpace(prompt))
+            {
+                throw new ArgumentException("Пустой запрос для ИИ.", nameof(prompt));
+            }
+
+            var aiBase = AppConfig.AiBaseUrl.TrimEnd('/');
+            var fullUrl = new Uri(new Uri(aiBase + "/"), "generate").ToString();
+            var payload = new AiReportRequest { Prompt = prompt, Token = _token, Format = format };
+            var requestJson = JsonSerializer.Serialize(payload, JsonOptions);
+            var stopwatch = Stopwatch.StartNew();
+
+            AppDebugLog.ApiRequest("POST", fullUrl, extra: $"ai prompt len={prompt.Length}, format={format}");
+
+            try
+            {
+                using (var httpRequest = new HttpRequestMessage(HttpMethod.Post, fullUrl))
+                {
+                    httpRequest.Content = new StringContent(requestJson, Encoding.UTF8, "application/json");
+                    var response = await _httpClient.SendAsync(httpRequest);
+                    stopwatch.Stop();
+
+                    if (!response.IsSuccessStatusCode)
+                    {
+                        var errBody = await response.Content.ReadAsStringAsync();
+                        AppDebugLog.ApiHttpError("POST", fullUrl, (int)response.StatusCode, errBody, "ai-report");
+                        var detail = TryDeserializeError(errBody)?.Error ?? errBody;
+                        throw new HttpRequestException($"ИИ-сервис вернул {(int)response.StatusCode}: {detail}");
+                    }
+
+                    var bytes = await response.Content.ReadAsByteArrayAsync();
+                    var fileName = response.Content.Headers.ContentDisposition?.FileNameStar
+                                   ?? response.Content.Headers.ContentDisposition?.FileName
+                                   ?? (format == "xlsx" ? "Отчёт.xlsx" : "Отчёт.docx");
+                    fileName = fileName.Trim('"');
+                    AppDebugLog.ApiResponse("POST", fullUrl, (int)response.StatusCode, stopwatch.ElapsedMilliseconds,
+                        $"ai file={fileName}, {bytes.Length} bytes");
+                    return new AiReportResult { Content = bytes, FileName = fileName };
+                }
+            }
+            catch (HttpRequestException)
+            {
+                throw;
+            }
+            catch (Exception ex)
+            {
+                stopwatch.Stop();
+                throw WrapNetworkError(ex, "формирование ИИ-отчёта");
+            }
+        }
+
+        public async Task<List<BuyerLocationDto>> GetBuyerLocationsAsync()
+        {
+            EnsureAuthenticated();
+            var responseBody = await SendAuthorizedGetAsync("/api/buyer/locations", "загрузку грузополучателей");
+            try
+            {
+                using (var doc = JsonDocument.Parse(responseBody))
+                {
+                    if (doc.RootElement.ValueKind == JsonValueKind.Array)
+                    {
+                        return JsonSerializer.Deserialize<List<BuyerLocationDto>>(responseBody, JsonOptions)
+                               ?? new List<BuyerLocationDto>();
+                    }
+                }
+
+                return new List<BuyerLocationDto>();
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Error("ApiClient", "Не удалось разобрать грузополучателей", ex);
+                throw new HttpRequestException($"Некорректный ответ сервера при загрузке грузополучателей: {ex.Message}", ex);
+            }
+        }
+
         public async Task<BuyerOrderDetailDto> GetBuyerOrderByIdAsync(string orderId)
         {
             EnsureAuthenticated();
@@ -734,6 +836,87 @@ namespace Электронная_Фармация.Classes
         public List<BuyerOrderListItemDto> Orders { get; set; }
     }
 
+    public sealed class AiReportRequest
+    {
+        [JsonPropertyName("prompt")]
+        public string Prompt { get; set; }
+
+        [JsonPropertyName("token")]
+        public string Token { get; set; }
+
+        [JsonPropertyName("format")]
+        public string Format { get; set; }
+    }
+
+    public sealed class AiReportResult
+    {
+        public byte[] Content { get; set; }
+        public string FileName { get; set; }
+    }
+
+    public sealed class BuyerReportResponse
+    {
+        [JsonPropertyName("lines")]
+        public List<BuyerReportLineDto> Lines { get; set; }
+    }
+
+    public sealed class BuyerReportLineDto
+    {
+        [JsonPropertyName("order_id")]
+        public string OrderID { get; set; }
+
+        [JsonPropertyName("global_sign")]
+        public string GlobalSign { get; set; }
+
+        [JsonPropertyName("order_date")]
+        public DateTime? OrderDate { get; set; }
+
+        [JsonPropertyName("status")]
+        public string Status { get; set; }
+
+        [JsonPropertyName("supplier")]
+        public string Supplier { get; set; }
+
+        [JsonPropertyName("location")]
+        public string Location { get; set; }
+
+        [JsonPropertyName("item_name")]
+        public string ItemName { get; set; }
+
+        [JsonPropertyName("item_code")]
+        public string ItemCode { get; set; }
+
+        [JsonPropertyName("qty")]
+        public decimal Qty { get; set; }
+
+        [JsonPropertyName("unit_price")]
+        public decimal UnitPrice { get; set; }
+
+        [JsonPropertyName("sum")]
+        public decimal Sum { get; set; }
+    }
+
+    public sealed class BuyerLocationDto
+    {
+        [JsonPropertyName("buyer_location_id")]
+        public string BuyerLocationID { get; set; }
+
+        [JsonPropertyName("buyer_id")]
+        public string BuyerID { get; set; }
+
+        [JsonPropertyName("address")]
+        public string Address { get; set; }
+
+        [JsonPropertyName("region_id")]
+        public string RegionID { get; set; }
+
+        [JsonPropertyName("is_default")]
+        public bool IsDefault { get; set; }
+
+        [JsonPropertyName("region_name")]
+        public string RegionName { get; set; }
+    }
+
     public sealed class BuyerOrderListItemDto
     {
         [JsonPropertyName("order_id")]

src/ElectronicPharmacy/Classes/AppConfig.cs

@@ -12,11 +12,46 @@ namespace Электронная_Фармация.Classes
         public const string DefaultApiBaseUrl = "https://24pharmdata.ru";
         public const string DefaultUpdateCheckBaseUrl = "https://git.24pharmdata.ru";
         public const string DefaultUpdateRepo = "pharmdata/elfisa-pharmacy";
+        /// <summary>Публичная раздача установщика (корень CDN отдаёт Setup.exe).</summary>
+        public const string DefaultInstallerCdnUrl = "https://cdn.24pharmdata.ru";
+        public const string DefaultInstallerDownloadUrl = "https://cdn.24pharmdata.ru/ElfisaPharmacy-Setup.exe";
         private const string LegacyApiBaseUrl = "http://195.34.241.84:9988";
         private const string ApiBaseUrlEnvVar = "ELF_API_BASE_URL";
+        /// <summary>ИИ-сервис отчётов (проксируется Caddy на Мак-мини). Можно переопределить
+        /// переменной ELF_AI_BASE_URL, напр. http://192.168.95.116:8808 для теста по локальной сети.</summary>
+        public const string DefaultAiBaseUrl = "https://24pharmdata.ru/ai";
+        private const string AiBaseUrlEnvVar = "ELF_AI_BASE_URL";
         private static bool _sqliteInteropPrepared;
         private static readonly object _sqliteInteropLock = new object();
 
+        public static string InstallerDownloadUrl
+        {
+            get
+            {
+                var fromEnv = Environment.GetEnvironmentVariable("ELF_INSTALLER_URL");
+                if (!string.IsNullOrWhiteSpace(fromEnv))
+                {
+                    return fromEnv.Trim();
+                }
+
+                return DefaultInstallerDownloadUrl;
+            }
+        }
+
+        public static string InstallerCdnUrl
+        {
+            get
+            {
+                var fromEnv = Environment.GetEnvironmentVariable("ELF_CDN_URL");
+                if (!string.IsNullOrWhiteSpace(fromEnv))
+                {
+                    return fromEnv.Trim().TrimEnd('/');
+                }
+
+                return DefaultInstallerCdnUrl;
+            }
+        }
+
         /// <summary>
         /// Replaces known dead API URLs in saved user settings.
         /// </summary>
@@ -80,6 +115,21 @@ namespace Электронная_Фармация.Classes
             }
         }
 
+        /// <summary>Базовый URL ИИ-сервиса отчётов.</summary>
+        public static string AiBaseUrl
+        {
+            get
+            {
+                var fromEnv = Environment.GetEnvironmentVariable(AiBaseUrlEnvVar);
+                if (!string.IsNullOrWhiteSpace(fromEnv))
+                {
+                    return fromEnv.Trim().TrimEnd('/');
+                }
+
+                return DefaultAiBaseUrl;
+            }
+        }
+
         public static string NormalizeApiBaseUrl(string url)
         {
             if (string.IsNullOrWhiteSpace(url))
@@ -97,24 +147,77 @@ namespace Электронная_Фармация.Classes
             return url;
         }
 
+        /// <summary>
+        /// Writable per-user data (DB, logs). Program Files is read-only for normal users.
+        /// </summary>
+        public static string UserDataDirectory
+        {
+            get
+            {
+                var dir = Path.Combine(
+                    Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+                    "ЭльФиСА",
+                    "Электронная Фармация");
+
+                try
+                {
+                    Directory.CreateDirectory(dir);
+                }
+                catch
+                {
+                    // Caller will surface a clearer error when opening the DB.
+                }
+
+                return dir;
+            }
+        }
+
+        public static string LogsDirectory => Path.Combine(UserDataDirectory, "Logs");
+
         public static string SqliteDbPath
         {
             get
             {
+                MigrateLegacySqliteDatabaseIfNeeded();
+                return Path.Combine(UserDataDirectory, "efClient.db");
+            }
+        }
+
+        /// <summary>
+        /// One-time copy from install folder (old portable layout) into LocalAppData.
+        /// </summary>
+        private static void MigrateLegacySqliteDatabaseIfNeeded()
+        {
+            try
+            {
+                var target = Path.Combine(UserDataDirectory, "efClient.db");
+                if (File.Exists(target))
+                {
+                    return;
+                }
+
                 var baseDir = AppDomain.CurrentDomain.BaseDirectory;
-                var root = Path.Combine(baseDir, "efClient.db");
-                var data = Path.Combine(baseDir, "Data", "efClient.db");
-                if (File.Exists(root))
+                var candidates = new[]
                 {
-                    return root;
-                }
+                    Path.Combine(baseDir, "efClient.db"),
+                    Path.Combine(baseDir, "Data", "efClient.db")
+                };
 
-                if (File.Exists(data))
+                foreach (var source in candidates)
                 {
-                    return data;
-                }
+                    if (!File.Exists(source))
+                    {
+                        continue;
+                    }
 
-                return root;
+                    File.Copy(source, target, overwrite: false);
+                    AppDebugLog.Info("AppConfig", $"SQLite DB migrated: {source} -> {target}");
+                    return;
+                }
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Info("AppConfig", $"SQLite DB migrate skipped: {ex.Message}");
             }
         }
 

src/ElectronicPharmacy/Classes/AppDebugLog.cs

@@ -8,7 +8,7 @@ namespace Электронная_Фармация.Classes
 {
     /// <summary>
     /// File logger for API/auth/network debugging.
-    /// Logs are written to Logs/api-debug-YYYY-MM-DD.log next to the executable.
+    /// Logs are written to %LocalAppData%\ЭльФиСА\...\Logs\api-debug-YYYY-MM-DD.log.
     /// </summary>
     public static class AppDebugLog
     {
@@ -33,8 +33,7 @@ namespace Электронная_Фармация.Classes
             }
         }
 
-        public static string LogDirectory =>
-            Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Logs");
+        public static string LogDirectory => AppConfig.LogsDirectory;
 
         public static string CurrentLogFilePath =>
             Path.Combine(LogDirectory, $"api-debug-{DateTime.Now:yyyy-MM-dd}.log");

src/ElectronicPharmacy/Classes/AutoUpdater.cs

@@ -31,7 +31,6 @@ namespace Электронная_Фармация.Classes
             if (string.IsNullOrWhiteSpace(downloadUrl) ||
                 !downloadUrl.EndsWith(".zip", StringComparison.OrdinalIgnoreCase))
             {
-                // Prefer zipball if asset missing
                 if (!string.IsNullOrWhiteSpace(downloadUrl) &&
                     !downloadUrl.EndsWith(".zip", StringComparison.OrdinalIgnoreCase))
                 {
@@ -75,24 +74,74 @@ namespace Электронная_Фармация.Classes
                     throw new InvalidOperationException("В архиве не найден exe приложения.");
                 }
 
+                // Переносим payload в путь без спецсимволов: имя корневой папки в архиве
+                // бывает в чужой кодировке, и такой путь ломает аргумент SRC у robocopy
+                // (особенно при запуске под elevated cmd с OEM-кодовой страницей).
+                var asciiPayload = Path.Combine(workRoot, "payload");
+                try
+                {
+                    if (Directory.Exists(asciiPayload))
+                    {
+                        Directory.Delete(asciiPayload, true);
+                    }
+                    Directory.Move(payloadDir, asciiPayload);
+                    payloadDir = asciiPayload;
+                }
+                catch
+                {
+                    // Если перенос не удался — работаем с исходным путём.
+                }
+
+                var needsElevation = !IsDirectoryWritable(installDir);
                 var updaterBat = Path.Combine(workRoot, "apply-update.cmd");
                 WriteUpdaterScript(updaterBat);
 
-                Report(status, "Подготовка перезапуска...");
+                Report(status, needsElevation
+                    ? "Нужны права администратора для установки в Program Files..."
+                    : "Подготовка перезапуска...");
+
+                var batchArgs = Quote(payloadDir) + " " + Quote(installDir) + " " +
+                                Quote(Path.GetFileName(currentExe)) + " " +
+                                Process.GetCurrentProcess().Id;
+
                 var psi = new ProcessStartInfo
                 {
-                    FileName = updaterBat,
-                    Arguments = Quote(payloadDir) + " " + Quote(installDir) + " " +
-                                Quote(Path.GetFileName(currentExe)) + " " +
-                                Process.GetCurrentProcess().Id,
                     UseShellExecute = true,
-                    WindowStyle = ProcessWindowStyle.Hidden,
                     WorkingDirectory = workRoot,
-                    CreateNoWindow = true
+                    WindowStyle = needsElevation ? ProcessWindowStyle.Normal : ProcessWindowStyle.Hidden,
+                    CreateNoWindow = !needsElevation
                 };
-                Process.Start(psi);
+                if (needsElevation)
+                {
+                    // ВАЖНО: повышаем права через cmd.exe (PE-исполняемый), а НЕ через
+                    // .cmd-файл напрямую. ShellExecute с verb=runas на .cmd срабатывает не
+                    // на всех системах (у batch может не быть runas-ассоциации), из-за чего
+                    // elevated-процесс молча не запускается и обновление не применяется.
+                    psi.FileName = "cmd.exe";
+                    psi.Arguments = "/c \"\"" + updaterBat + "\" " + batchArgs + "\"";
+                    psi.Verb = "runas";
+                }
+                else
+                {
+                    psi.FileName = updaterBat;
+                    psi.Arguments = batchArgs;
+                }
+
+                try
+                {
+                    Process.Start(psi);
+                }
+                catch (System.ComponentModel.Win32Exception ex) when (ex.NativeErrorCode == 1223)
+                {
+                    // ERROR_CANCELLED — пользователь отклонил UAC
+                    throw new InvalidOperationException(
+                        "Обновление отменено: нужны права администратора " +
+                        "(программа установлена в Program Files).",
+                        ex);
+                }
+
                 AppDebugLog.Info("AutoUpdater",
-                    $"Updater started. payload={payloadDir}, install={installDir}, ver={update.LatestVersion}");
+                    $"Updater started. elevate={needsElevation}, payload={payloadDir}, install={installDir}, ver={update.LatestVersion}");
             }
             catch
             {
@@ -112,6 +161,21 @@ namespace Электронная_Фармация.Classes
             }
         }
 
+        private static bool IsDirectoryWritable(string directory)
+        {
+            try
+            {
+                var probe = Path.Combine(directory, ".elfisa-write-" + Guid.NewGuid().ToString("N"));
+                File.WriteAllText(probe, "ok");
+                File.Delete(probe);
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
         private static async Task DownloadAsync(string url, string zipPath)
         {
             using (var client = new HttpClient { Timeout = TimeSpan.FromMinutes(10) })
@@ -143,7 +207,8 @@ namespace Электронная_Фармация.Classes
                 {
                     var name = Path.GetFileName(p) ?? string.Empty;
                     return !name.EndsWith(".vshost.exe", StringComparison.OrdinalIgnoreCase) &&
-                           !name.Equals("UpdateCheckSmoke.exe", StringComparison.OrdinalIgnoreCase);
+                           !name.Equals("UpdateCheckSmoke.exe", StringComparison.OrdinalIgnoreCase) &&
+                           !name.StartsWith("unins", StringComparison.OrdinalIgnoreCase);
                 });
 
             return exe == null ? null : Path.GetDirectoryName(exe);
@@ -151,28 +216,58 @@ namespace Электронная_Фармация.Classes
 
         private static void WriteUpdaterScript(string path)
         {
-            // Waits for app exit, copies files, keeps local DB/Logs, restarts exe.
+            // Waits for app exit, force-kills leftovers, renames locked exe,
+            // copies with robocopy, verifies, restarts. Log: %TEMP%\elfisa-updater.log
             var sb = new StringBuilder();
             sb.AppendLine("@echo off");
-            sb.AppendLine("setlocal");
+            sb.AppendLine("setlocal EnableDelayedExpansion");
             sb.AppendLine("set \"SRC=%~1\"");
             sb.AppendLine("set \"DST=%~2\"");
             sb.AppendLine("set \"EXENAME=%~3\"");
             sb.AppendLine("set \"PID=%~4\"");
-            sb.AppendLine("echo Waiting for PID %PID% ... > \"%TEMP%\\elfisa-updater.log\"");
+            sb.AppendLine("set \"LOG=%TEMP%\\elfisa-updater.log\"");
+            sb.AppendLine("echo ===== %DATE% %TIME% ===== > \"%LOG%\"");
+            sb.AppendLine("echo SRC=%SRC%>> \"%LOG%\"");
+            sb.AppendLine("echo DST=%DST%>> \"%LOG%\"");
+            sb.AppendLine("echo EXE=%EXENAME% PID=%PID%>> \"%LOG%\"");
+            sb.AppendLine("set \"N=0\"");
+            sb.AppendLine("echo Waiting for PID %PID% ... >> \"%LOG%\"");
             sb.AppendLine(":waitloop");
-            sb.AppendLine("tasklist /FI \"PID eq %PID%\" 2>nul | find \"%PID%\" >nul");
-            sb.AppendLine("if not errorlevel 1 (");
-            sb.AppendLine("  timeout /t 1 /nobreak >nul");
-            sb.AppendLine("  goto waitloop");
+            sb.AppendLine("tasklist /FI \"PID eq %PID%\" 2>nul | findstr /C:\" %PID% \" >nul");
+            sb.AppendLine("if errorlevel 1 goto donewait");
+            sb.AppendLine("set /a N+=1");
+            sb.AppendLine("if !N! GEQ 40 (");
+            sb.AppendLine("  echo force kill PID %PID% >> \"%LOG%\"");
+            sb.AppendLine("  taskkill /PID %PID% /F >nul 2>&1");
+            sb.AppendLine("  goto donewait");
             sb.AppendLine(")");
-            sb.AppendLine("timeout /t 1 /nobreak >nul");
-            sb.AppendLine("echo Copying update... >> \"%TEMP%\\elfisa-updater.log\"");
-            // /E copy tree; exclude local DB and logs from being overwritten/removed.
-            sb.AppendLine("robocopy \"%SRC%\" \"%DST%\" /E /R:2 /W:1 /NFL /NDL /NJH /NJS /XF efClient.db *.db /XD Logs");
-            sb.AppendLine("set \"RC=%ERRORLEVEL%\"");
-            sb.AppendLine("echo robocopy=%RC% >> \"%TEMP%\\elfisa-updater.log\"");
-            // robocopy 0-7 = success-ish
+            sb.AppendLine("ping 127.0.0.1 -n 2 >nul");
+            sb.AppendLine("goto waitloop");
+            sb.AppendLine(":donewait");
+            sb.AppendLine("ping 127.0.0.1 -n 2 >nul");
+            // Kill any leftover instances by image name (locks Program Files exe).
+            sb.AppendLine("echo taskkill by name >> \"%LOG%\"");
+            sb.AppendLine("taskkill /F /IM \"%EXENAME%\" >nul 2>&1");
+            sb.AppendLine("ping 127.0.0.1 -n 2 >nul");
+            // Rename locked/old exe so copy can proceed even if handle lingered.
+            sb.AppendLine("if exist \"%DST%\\%EXENAME%.old\" del /F /Q \"%DST%\\%EXENAME%.old\" >nul 2>&1");
+            sb.AppendLine("if exist \"%DST%\\%EXENAME%\" (");
+            sb.AppendLine("  move /Y \"%DST%\\%EXENAME%\" \"%DST%\\%EXENAME%.old\" >> \"%LOG%\" 2>&1");
+            sb.AppendLine(")");
+            sb.AppendLine("echo Copying update... >> \"%LOG%\"");
+            // /IS /IT — force overwrite even if timestamps look the same
+            sb.AppendLine("robocopy \"%SRC%\" \"%DST%\" /E /IS /IT /R:5 /W:1 /NFL /NDL /NJH /NJS /XF efClient.db *.db /XD Logs");
+            sb.AppendLine("set \"RC=!ERRORLEVEL!\"");
+            sb.AppendLine("echo robocopy=!RC! >> \"%LOG%\"");
+            sb.AppendLine("if not exist \"%DST%\\%EXENAME%\" (");
+            sb.AppendLine("  echo COPY FAILED — restoring old exe >> \"%LOG%\"");
+            sb.AppendLine("  if exist \"%DST%\\%EXENAME%.old\" move /Y \"%DST%\\%EXENAME%.old\" \"%DST%\\%EXENAME%\" >nul 2>&1");
+            sb.AppendLine("  echo Не удалось заменить файлы программы. См. %TEMP%\\elfisa-updater.log");
+            sb.AppendLine("  pause");
+            sb.AppendLine("  exit /b 1");
+            sb.AppendLine(")");
+            sb.AppendLine("if exist \"%DST%\\%EXENAME%.old\" del /F /Q \"%DST%\\%EXENAME%.old\" >nul 2>&1");
+            sb.AppendLine("echo Starting \"%DST%\\%EXENAME%\" >> \"%LOG%\"");
             sb.AppendLine("start \"\" /D \"%DST%\" \"%DST%\\%EXENAME%\"");
             sb.AppendLine("exit /b 0");
             File.WriteAllText(path, sb.ToString(), Encoding.Default);

src/ElectronicPharmacy/Classes/ConsigneeHelper.cs

@@ -322,6 +322,131 @@ namespace Электронная_Фармация.Classes
             }
         }
 
+        /// <summary>
+        /// Подтягивает грузополучателей с сервера (BuyerLocation) в локальную таблицу Consignees.
+        /// Источник истины — веб-кабинет; локально только кэш + выбор активной аптеки.
+        /// </summary>
+        public static int SyncFromServer(IList<BuyerLocationDto> locations)
+        {
+            if (locations == null || locations.Count == 0)
+            {
+                return 0;
+            }
+
+            var upserted = 0;
+            using (var connection = new SQLiteConnection(AppConfig.SqliteConnectionString))
+            {
+                connection.Open();
+                using (var tx = connection.BeginTransaction())
+                {
+                    // Сбрасываем default — выставим по данным сервера.
+                    using (var clearDefault = new SQLiteCommand(
+                        "UPDATE Consignees SET ConsigneesUseAsDefault = 0",
+                        connection,
+                        tx))
+                    {
+                        clearDefault.ExecuteNonQuery();
+                    }
+
+                    int nextCode;
+                    using (var nextCodeCmd = new SQLiteCommand(
+                        "SELECT ifnull(MAX(codeConsignees), 0) + 1 FROM Consignees",
+                        connection,
+                        tx))
+                    {
+                        nextCode = Convert.ToInt32(nextCodeCmd.ExecuteScalar());
+                    }
+
+                    foreach (var loc in locations)
+                    {
+                        var locationId = (loc.BuyerLocationID ?? string.Empty).Trim();
+                        if (string.IsNullOrWhiteSpace(locationId))
+                        {
+                            continue;
+                        }
+
+                        var address = (loc.Address ?? string.Empty).Trim();
+                        if (string.IsNullOrWhiteSpace(address))
+                        {
+                            address = "Грузополучатель";
+                        }
+
+                        var name = address;
+                        if (name.Length > 120)
+                        {
+                            name = name.Substring(0, 120);
+                        }
+
+                        long? existingId = null;
+                        using (var find = new SQLiteCommand(
+                            @"SELECT idConsignees FROM Consignees
+                              WHERE lower(trim(LocationId)) = lower(@loc)
+                              LIMIT 1",
+                            connection,
+                            tx))
+                        {
+                            find.Parameters.AddWithValue("@loc", locationId);
+                            var found = find.ExecuteScalar();
+                            if (found != null && found != DBNull.Value)
+                            {
+                                existingId = Convert.ToInt64(found);
+                            }
+                        }
+
+                        if (existingId.HasValue)
+                        {
+                            using (var upd = new SQLiteCommand(
+                                @"UPDATE Consignees
+                                  SET ConsigneesName = @name,
+                                      ConsigneesAddress = @address,
+                                      ConsigneesUseAsDefault = @isDefault,
+                                      LocationId = @loc
+                                  WHERE idConsignees = @id",
+                                connection,
+                                tx))
+                            {
+                                upd.Parameters.AddWithValue("@name", name);
+                                upd.Parameters.AddWithValue("@address", address);
+                                upd.Parameters.AddWithValue("@isDefault", loc.IsDefault ? 1 : 0);
+                                upd.Parameters.AddWithValue("@loc", locationId);
+                                upd.Parameters.AddWithValue("@id", existingId.Value);
+                                upd.ExecuteNonQuery();
+                            }
+                        }
+                        else
+                        {
+                            using (var ins = new SQLiteCommand(
+                                @"INSERT INTO Consignees
+                                  (codeConsignees, ConsigneesName, ConsigneesAddress, ConsigneesUseAsDefault, LocationId)
+                                  VALUES (@code, @name, @address, @isDefault, @loc)",
+                                connection,
+                                tx))
+                            {
+                                ins.Parameters.AddWithValue("@code", nextCode++);
+                                ins.Parameters.AddWithValue("@name", name);
+                                ins.Parameters.AddWithValue("@address", address);
+                                ins.Parameters.AddWithValue("@isDefault", loc.IsDefault ? 1 : 0);
+                                ins.Parameters.AddWithValue("@loc", locationId);
+                                ins.ExecuteNonQuery();
+                            }
+                        }
+
+                        upserted++;
+                    }
+
+                    tx.Commit();
+                }
+            }
+
+            var active = GetDefaultConsigneeName();
+            if (!string.IsNullOrWhiteSpace(active))
+            {
+                SetActiveConsignee(active);
+            }
+
+            return upserted;
+        }
+
         /// <summary>
         /// Синхронизирует поля заказа в `PriceList` (Zakaz/SummaZakaza) с корзиной выбранной аптеки.
         /// Данные корзины хранятся в TempOrderItems с фильтром по ConsigneeName, а PriceList обновляется

src/ElectronicPharmacy/Classes/DataSender.cs

@@ -143,6 +143,7 @@ namespace Электронная_Фармация.Classes
                 string query = @"
 SELECT
     Orders.Id_Order,
+    Orders.OrderNumber,
     Orders.ConsigneeName,
     OrderItems.supplier_price_id,
     OrderItems.DrugName,
@@ -172,6 +173,9 @@ WHERE Orders.OrderState = 'НОВЫЙ'
                         while (reader.Read())
                         {
                             string orderId = reader["Id_Order"].ToString().Trim();
+                            string orderNumber = reader["OrderNumber"] == DBNull.Value
+                                ? string.Empty
+                                : reader["OrderNumber"].ToString().Trim();
                             string consigneeName = reader["ConsigneeName"] == DBNull.Value
                                 ? string.Empty
                                 : reader["ConsigneeName"].ToString().Trim();
@@ -196,6 +200,9 @@ WHERE Orders.OrderState = 'НОВЫЙ'
                                 order = new BuyerOrderRequest
                                 {
                                     LocalOrderId = orderId,
+                                    GlobalSign = OrderNumberHelper.IsValidEx(orderNumber)
+                                        ? OrderNumberHelper.Normalize(orderNumber)
+                                        : null,
                                     LocationId = locationId,
                                     Comment = reader["Comment"] == DBNull.Value ? null : reader["Comment"].ToString()
                                 };
@@ -324,10 +331,25 @@ WHERE Orders.OrderState = 'НОВЫЙ'
                         throw new InvalidOperationException("Сервер не вернул order_id созданного заказа.");
                     }
 
-                    MarkOrderSent(order.LocalOrderId, createdOrder.OrderID, createdOrder.Status);
-                    AppDebugLog.Info("DataSender", $"Заказ {order.LocalOrderId} отправлен");
+                    // Старые серверы создавали Draft — дожимаем до Placed.
+                    var remoteStatus = createdOrder.Status;
+                    if (!string.Equals(remoteStatus, "Placed", StringComparison.OrdinalIgnoreCase))
+                    {
+                        remoteStatus = await PlaceOrderAsync(client, createdOrder.OrderID) ?? remoteStatus;
+                    }
+
+                    MarkOrderSent(order.LocalOrderId, createdOrder.OrderID, remoteStatus, createdOrder.GlobalSign);
+                    AppDebugLog.Info("DataSender",
+                        $"Заказ {order.LocalOrderId} отправлен, remote={createdOrder.OrderID}, status={remoteStatus}, sign={createdOrder.GlobalSign}");
                     return true;
                 }
+                catch (InvalidOperationException ex)
+                {
+                    stopwatch.Stop();
+                    AppDebugLog.Error("DataSender", $"Ошибка отправки заказа {order.LocalOrderId}", ex);
+                    ToastNotification.ShowError(ex.Message);
+                    return false;
+                }
                 catch (Exception ex)
                 {
                     stopwatch.Stop();
@@ -338,7 +360,67 @@ WHERE Orders.OrderState = 'НОВЫЙ'
             }
         }
 
-        private static void MarkOrderSent(string localOrderId, string remoteOrderId, string remoteStatus)
+        private async Task<string> PlaceOrderAsync(HttpClient client, string remoteOrderId)
+        {
+            var placePath = $"{BuyerOrdersEndpoint}/{Uri.EscapeDataString(remoteOrderId)}/place";
+            var fullUrl = new Uri(new Uri(_baseUrl.TrimEnd('/') + "/"), placePath.TrimStart('/')).ToString();
+            var stopwatch = System.Diagnostics.Stopwatch.StartNew();
+            AppDebugLog.ApiRequest("POST", fullUrl, string.Empty, $"place={remoteOrderId}");
+
+            try
+            {
+                using (var content = new StringContent(string.Empty, Encoding.UTF8, "application/json"))
+                using (HttpResponseMessage response = await client.PostAsync(placePath, content))
+                {
+                    string responseString = await response.Content.ReadAsStringAsync();
+                    stopwatch.Stop();
+                    AppDebugLog.ApiResponse("POST", fullUrl, (int)response.StatusCode, stopwatch.ElapsedMilliseconds, responseString);
+
+                    if (!response.IsSuccessStatusCode)
+                    {
+                        AppDebugLog.ApiHttpError(
+                            "POST",
+                            fullUrl,
+                            (int)response.StatusCode,
+                            responseString,
+                            $"place={remoteOrderId}");
+                        throw new InvalidOperationException(
+                            $"Не удалось оформить заказ на сервере (HTTP {(int)response.StatusCode}). " +
+                            "Заказ остался черновиком (Draft).");
+                    }
+
+                    try
+                    {
+                        using (var doc = JsonDocument.Parse(responseString))
+                        {
+                            if (doc.RootElement.TryGetProperty("status", out var statusEl))
+                            {
+                                return statusEl.GetString();
+                            }
+                        }
+                    }
+                    catch
+                    {
+                        // ignore parse — place succeeded
+                    }
+
+                    return "Placed";
+                }
+            }
+            catch (InvalidOperationException)
+            {
+                throw;
+            }
+            catch (Exception ex)
+            {
+                stopwatch.Stop();
+                AppDebugLog.ApiFailure("POST", fullUrl, stopwatch.ElapsedMilliseconds, ex);
+                throw new InvalidOperationException(
+                    $"Не удалось оформить заказ на сервере: {ex.Message}", ex);
+            }
+        }
+
+        private static void MarkOrderSent(string localOrderId, string remoteOrderId, string remoteStatus, string globalSign)
         {
             if (string.IsNullOrWhiteSpace(localOrderId))
             {
@@ -351,12 +433,18 @@ WHERE Orders.OrderState = 'НОВЫЙ'
                 using (var cmd = new SQLiteCommand(
                     @"UPDATE [Orders]
                       SET [OrderState] = @state,
-                          [RemoteOrderId] = @remoteOrderId
+                          [RemoteOrderId] = @remoteOrderId,
+                          [OrderNumber] = CASE
+                              WHEN @globalSign IS NOT NULL AND length(trim(@globalSign)) > 0 THEN @globalSign
+                              ELSE [OrderNumber]
+                          END
                       WHERE [Id_Order] = @id AND [OrderState] = 'НОВЫЙ'",
                     con))
                 {
                     cmd.Parameters.AddWithValue("@state", "ОТПРАВЛЕН");
                     cmd.Parameters.AddWithValue("@remoteOrderId", remoteOrderId ?? string.Empty);
+                    cmd.Parameters.AddWithValue("@globalSign",
+                        string.IsNullOrWhiteSpace(globalSign) ? (object)DBNull.Value : globalSign.Trim());
                     cmd.Parameters.AddWithValue("@id", localOrderId);
                     cmd.ExecuteNonQuery();
                 }
@@ -393,6 +481,9 @@ WHERE Orders.OrderState = 'НОВЫЙ'
         [JsonPropertyName("location_id")]
         public string LocationId { get; set; }
 
+        [JsonPropertyName("global_sign")]
+        public string GlobalSign { get; set; }
+
         [JsonPropertyName("comment")]
         public string Comment { get; set; }
 
@@ -422,5 +513,8 @@ WHERE Orders.OrderState = 'НОВЫЙ'
 
         [JsonPropertyName("status")]
         public string Status { get; set; }
+
+        [JsonPropertyName("global_sign")]
+        public string GlobalSign { get; set; }
     }
 }

src/ElectronicPharmacy/Classes/OrderNumberHelper.cs

@@ -0,0 +1,157 @@
+using System;
+using System.Data.SQLite;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using Электронная_Фармация.Properties;
+
+namespace Электронная_Фармация.Classes
+{
+    /// <summary>
+    /// Глобальные номера заказов вида EX-0000001.
+    /// Источник истины — сервер (никогда не повторяются между аптеками).
+    /// Offline fallback — локальный счётчик EX- (потом сервер может заменить при отправке).
+    /// </summary>
+    public static class OrderNumberHelper
+    {
+        private static readonly Regex ExPattern = new Regex(@"^EX-(\d{1,7})$", RegexOptions.IgnoreCase | RegexOptions.Compiled);
+
+        /// <summary>
+        /// Выделяет номер для нового локального заказа.
+        /// Сначала пробует сервер /api/buyer/global-sign/next, иначе локальный EX-#######.
+        /// </summary>
+        public static string AllocateForNewOrder()
+        {
+            try
+            {
+                var fromServer = AllocateFromServerAsync().GetAwaiter().GetResult();
+                if (!string.IsNullOrWhiteSpace(fromServer))
+                {
+                    return fromServer;
+                }
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Info("OrderNumber", $"Сервер недоступен для GlobalSign: {ex.Message}");
+            }
+
+            return AllocateLocalFallback();
+        }
+
+        public static async Task<string> AllocateFromServerAsync()
+        {
+            var token = Settings.Default.stringToken;
+            var baseUrl = AppConfig.ApiBaseUrl;
+            if (string.IsNullOrWhiteSpace(token) || string.IsNullOrWhiteSpace(baseUrl))
+            {
+                return null;
+            }
+
+            using (var client = new HttpClient { Timeout = TimeSpan.FromSeconds(8) })
+            {
+                client.BaseAddress = new Uri(baseUrl.TrimEnd('/') + "/");
+                client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token.Trim());
+                client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+
+                using (var response = await client.PostAsync("api/buyer/global-sign/next", new StringContent(string.Empty)).ConfigureAwait(false))
+                {
+                    var body = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+                    if (!response.IsSuccessStatusCode)
+                    {
+                        AppDebugLog.Info("OrderNumber", $"global-sign/next HTTP {(int)response.StatusCode}: {body}");
+                        return null;
+                    }
+
+                    using (var doc = JsonDocument.Parse(body))
+                    {
+                        if (doc.RootElement.TryGetProperty("global_sign", out var el))
+                        {
+                            var sign = el.GetString();
+                            if (IsValidEx(sign))
+                            {
+                                return Normalize(sign);
+                            }
+                        }
+                    }
+                }
+            }
+
+            return null;
+        }
+
+        public static string AllocateLocalFallback()
+        {
+            long max = 0;
+            try
+            {
+                using (var con = new SQLiteConnection(AppConfig.SqliteConnectionString))
+                {
+                    con.Open();
+                    using (var cmd = new SQLiteCommand(
+                        "SELECT OrderNumber FROM Orders WHERE OrderNumber LIKE 'EX-%'", con))
+                    using (var reader = cmd.ExecuteReader())
+                    {
+                        while (reader.Read())
+                        {
+                            var n = ParseExNumber(reader[0]?.ToString());
+                            if (n > max)
+                            {
+                                max = n;
+                            }
+                        }
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Info("OrderNumber", $"Локальный max EX-: {ex.Message}");
+            }
+
+            return FormatEx(max + 1);
+        }
+
+        public static bool IsValidEx(string value)
+        {
+            return ParseExNumber(value) > 0;
+        }
+
+        public static string Normalize(string value)
+        {
+            var n = ParseExNumber(value);
+            return n > 0 ? FormatEx(n) : value?.Trim();
+        }
+
+        public static string FormatEx(long n)
+        {
+            if (n < 1)
+            {
+                n = 1;
+            }
+
+            if (n > 9999999)
+            {
+                return "EX-" + n.ToString();
+            }
+
+            return "EX-" + n.ToString("D7");
+        }
+
+        public static long ParseExNumber(string value)
+        {
+            if (string.IsNullOrWhiteSpace(value))
+            {
+                return 0;
+            }
+
+            var m = ExPattern.Match(value.Trim());
+            if (!m.Success)
+            {
+                return 0;
+            }
+
+            return long.TryParse(m.Groups[1].Value, out var n) ? n : 0;
+        }
+    }
+}

src/ElectronicPharmacy/Classes/UiThemeHelper.cs

@@ -125,15 +125,36 @@ namespace Электронная_Фармация.Classes
             }
             else if (control is Panel || control is UserControl || control is TableLayoutPanel)
             {
-                if (control.Tag as string == "keep-bg")
+                var tag = control.Tag as string;
+                if (tag == "keep-bg")
                 {
                     // preserve custom background
                 }
-                else if (control.Tag as string == "chrome-child")
+                else if (tag == "chrome-child")
                 {
                     control.BackColor = theme.BackgroundPrimary;
                     control.ForeColor = theme.TextPrimary;
                 }
+                else if (tag == "toolbar")
+                {
+                    control.BackColor = theme.Surface;
+                    control.ForeColor = theme.TextPrimary;
+                }
+                else if (tag == "status-footer")
+                {
+                    control.BackColor = theme.CartHeaderBackground;
+                    control.ForeColor = theme.TextPrimary;
+                }
+                else if (tag == "surface-bar")
+                {
+                    control.BackColor = theme.SectionHeaderBackground;
+                    control.ForeColor = theme.TextPrimary;
+                }
+                else if (tag == "markup-bar")
+                {
+                    control.BackColor = theme.AccentPrimarySoft;
+                    control.ForeColor = theme.TextPrimary;
+                }
                 else
                 {
                     control.BackColor = theme.BackgroundSecondary;

src/ElectronicPharmacy/ElectronicPharmacy.csproj

@@ -17,6 +17,7 @@
     <GenerateResourceUsePreserializedResources>true</GenerateResourceUsePreserializedResources>
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
+    <ApplicationIcon>Resources\elfisa.ico</ApplicationIcon>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -112,6 +113,7 @@
     <Compile Include="Classes\ConsigneeHelper.cs" />
     <Compile Include="Classes\SqlSyntaxHighlighter.cs" />
     <Compile Include="Classes\DataSender.cs" />
+    <Compile Include="Classes\OrderNumberHelper.cs" />
     <Compile Include="Classes\ErrorResponse.cs" />
     <Compile Include="Classes\InvoiceExportService.cs" />
     <Compile Include="Classes\InvoiceRequestService.cs" />
@@ -246,6 +248,9 @@
     <Compile Include="UserControls\UCRefusals.cs">
       <SubType>UserControl</SubType>
     </Compile>
+    <Compile Include="UserControls\UCReports.cs">
+      <SubType>UserControl</SubType>
+    </Compile>
     <Compile Include="UserControls\UCPriceList.cs">
       <SubType>UserControl</SubType>
     </Compile>
@@ -353,4 +358,7 @@
   <Import Project="packages\EntityFramework.6.4.4\build\EntityFramework.targets" Condition="Exists('packages\EntityFramework.6.4.4\build\EntityFramework.targets')" />
   <Import Project="packages\System.ValueTuple.4.6.1\build\net471\System.ValueTuple.targets" Condition="Exists('packages\System.ValueTuple.4.6.1\build\net471\System.ValueTuple.targets')" />
   <Import Project="packages\System.Resources.Extensions.8.0.0\buildTransitive\net462\System.Resources.Extensions.targets" Condition="Exists('packages\System.Resources.Extensions.8.0.0\buildTransitive\net462\System.Resources.Extensions.targets')" />
+  <ItemGroup>
+    <None Include="Resources\elfisa.ico" />
+  </ItemGroup>
 </Project>

src/ElectronicPharmacy/Form1.Designer.cs

@@ -1,4 +1,4 @@
-namespace Электронная_Фармация
+namespace Электронная_Фармация
 {
     partial class ElectroPharmacy
     {
@@ -381,8 +381,11 @@
             this.ClientSize = new System.Drawing.Size(1089, 554);
             this.Controls.Add(this.bindControl);
             this.Controls.Add(this.tabContent);
-            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable;
+            this.MaximizeBox = true;
+            this.MinimizeBox = true;
             this.Margin = new System.Windows.Forms.Padding(4);
+            this.MinimumSize = new System.Drawing.Size(900, 620);
             this.Name = "ElectroPharmacy";
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
             this.Text = "Электронная Фармация";

src/ElectronicPharmacy/Form1.UiShell.cs

@@ -23,6 +23,7 @@ namespace Электронная_Фармация
         private ToastService _toastService;
         private LoadingOverlay _loadingOverlay;
         private ModernAppHeader _appHeader;
+        private ModernTitleBar _titleBar;
         private ModernDocumentTabStrip _documentTabStrip;
         private Panel _documentHost;
         private Panel _statusFooter;
@@ -38,6 +39,9 @@ namespace Электронная_Фармация
             Font = new Font("Segoe UI", 12f);
             AutoScaleMode = AutoScaleMode.Dpi;
             KeyPreview = true;
+            FormBorderStyle = FormBorderStyle.None;
+            MaximizeBox = true;
+            MinimizeBox = true;
             MinimumSize = new Size(900, 620);
 
             bindControl.Visible = false;
@@ -47,17 +51,22 @@ namespace Электронная_Фармация
             AppServices.Initialize(_toastService);
             _loadingOverlay = new LoadingOverlay { Name = "loadingOverlay", Dock = DockStyle.Fill };
 
+            _titleBar = new ModernTitleBar { Name = "titleBar" };
+            _titleBar.Attach(this);
+            _titleBar.ApplyTheme(ThemeManager.Colors);
+
             _appHeader = new ModernAppHeader { Name = "appHeader", Dock = DockStyle.Top };
             _appHeader.SetItems(new[]
             {
-                new SidebarItem { Key = "price", Text = "ПРАЙС-ЛИСТ", IconGlyph = "\uE8FD" },
-                new SidebarItem { Key = "orders", Text = "ЗАКАЗЫ", IconGlyph = "\uE719" },
-                new SidebarItem { Key = "invoices", Text = "НАКЛАДНЫЕ", IconGlyph = "\uE8A5" },
-                new SidebarItem { Key = "upload", Text = "ЗАГРУЗИТЬ", IconGlyph = "\uE896" },
-                new SidebarItem { Key = "send", Text = "ОТПРАВИТЬ", IconGlyph = "\uE725" },
-                new SidebarItem { Key = "refusals", Text = "ОТКАЗЫ", IconGlyph = "\uE711" },
-                new SidebarItem { Key = "directory", Text = "СПРАВОЧНИК", IconGlyph = "\uE8FD" },
-                new SidebarItem { Key = "auth", Text = "АВТОРИЗАЦИЯ", IconGlyph = "\uE192" }
+                new SidebarItem { Key = "price", Text = "Прайс-лист", IconGlyph = "\uE14C" },
+                new SidebarItem { Key = "orders", Text = "Заказы", IconGlyph = "\uE7BF" },
+                new SidebarItem { Key = "invoices", Text = "Накладные", IconGlyph = "\uE8A5" },
+                new SidebarItem { Key = "reports", Text = "Отчёты", IconGlyph = "" },
+                new SidebarItem { Key = "upload", Text = "Загрузить", IconGlyph = "\uE896" },
+                new SidebarItem { Key = "send", Text = "Отправить", IconGlyph = "\uE725" },
+                new SidebarItem { Key = "refusals", Text = "Отказы", IconGlyph = "\uE7BA" },
+                new SidebarItem { Key = "directory", Text = "Справочник", IconGlyph = "\uE8F1" },
+                new SidebarItem { Key = "auth", Text = "Вход", IconGlyph = "\uE192" }
             });
 
             _documentTabStrip = new ModernDocumentTabStrip { Name = "documentTabStrip", Dock = DockStyle.Top };
@@ -67,16 +76,22 @@ namespace Электронная_Фармация
             {
                 Name = "statusFooter",
                 Dock = DockStyle.Bottom,
-                Height = 28,
+                Height = 32,
                 Tag = "status-footer",
-                Padding = new Padding(10, 0, 4, 0)
+                Padding = new Padding(12, 0, 8, 0)
             };
             _statusFooter.Paint += (_, e) =>
             {
-                var border = ThemeManager.Colors.Border;
-                using (var pen = new Pen(border))
+                var theme = ThemeManager.Colors;
+                var g = e.Graphics;
+                using (var fill = new SolidBrush(theme.CartHeaderBackground))
                 {
-                    e.Graphics.DrawLine(pen, 0, 0, _statusFooter.Width, 0);
+                    g.FillRectangle(fill, _statusFooter.ClientRectangle);
+                }
+
+                using (var pen = new Pen(theme.AccentPrimaryBorder))
+                {
+                    g.DrawLine(pen, 0, 0, _statusFooter.Width, 0);
                 }
             };
 
@@ -118,6 +133,7 @@ namespace Электронная_Фармация
             Controls.Add(_statusFooter);
             Controls.Add(_documentTabStrip);
             Controls.Add(_appHeader);
+            Controls.Add(_titleBar);
 
             _directoryMenu = new ContextMenuStrip();
             var contractorsItem = new ToolStripMenuItem("Поставщики");
@@ -167,12 +183,24 @@ namespace Электронная_Фармация
             {
                 UiThemeHelper.ApplyToControlTree(this);
                 UpdateThemeToggleState();
+                _titleBar?.ApplyTheme(ThemeManager.Colors);
                 WindowChromeHelper.ApplyTitleBarTheme(this, ThemeManager.Colors);
             };
 
             HandleCreated += (_, __) => WindowChromeHelper.ApplyTitleBarTheme(this, ThemeManager.Colors);
         }
 
+        protected override void WndProc(ref Message m)
+        {
+            if (FormBorderStyle == FormBorderStyle.None
+                && WindowChromeHelper.TryHandleNcHitTest(this, ref m))
+            {
+                return;
+            }
+
+            base.WndProc(ref m);
+        }
+
         private void UpdateThemeToggleState()
         {
             if (_documentTabStrip != null)
@@ -193,14 +221,49 @@ namespace Электронная_Фармация
         {
             ThemeManager.CurrentVariant = Settings.Default.UseDarkTheme
                 ? ThemeVariant.DarkProductivity
-                : ThemeVariant.PharmaTrust;
+                : ThemeVariant.ClinicalPro;
             _themeService.Initialize(this);
             UpdateThemeToggleState();
             UiThemeHelper.ApplyToControlTree(this);
+            _titleBar?.ApplyTheme(ThemeManager.Colors);
             WindowChromeHelper.ApplyTitleBarTheme(this, ThemeManager.Colors);
+            try
+            {
+                Icon = CreateAppIcon();
+            }
+            catch
+            {
+                // keep default
+            }
             RefreshCurrentUserStatus();
         }
 
+        private static Icon CreateAppIcon()
+        {
+            using (var bmp = new Bitmap(32, 32))
+            using (var g = Graphics.FromImage(bmp))
+            {
+                g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
+                g.Clear(Color.Transparent);
+                using (var brush = new SolidBrush(Color.FromArgb(15, 118, 110)))
+                {
+                    g.FillEllipse(brush, 1, 1, 30, 30);
+                }
+
+                using (var pen = new Pen(Color.White, 3f)
+                {
+                    StartCap = System.Drawing.Drawing2D.LineCap.Round,
+                    EndCap = System.Drawing.Drawing2D.LineCap.Round
+                })
+                {
+                    g.DrawLine(pen, 16, 8, 16, 24);
+                    g.DrawLine(pen, 8, 16, 24, 16);
+                }
+
+                return Icon.FromHandle(bmp.GetHicon());
+            }
+        }
+
         private void RefreshCurrentUserStatus()
         {
             if (_lblCurrentUser == null)
@@ -259,6 +322,9 @@ namespace Электронная_Фармация
                 case "invoices":
                     OpenInvoicesTab();
                     break;
+                case "reports":
+                    OpenReportsTab();
+                    break;
                 case "upload":
                     tsBtnDownloadData_Click(this, EventArgs.Empty);
                     _appHeader.SetActive("upload");
@@ -437,6 +503,12 @@ namespace Электронная_Фармация
             OpenDocumentTab("Отказы", "refusals", refusals, allowDuplicate: false);
         }
 
+        private void OpenReportsTab()
+        {
+            var reports = new UCReports();
+            OpenDocumentTab("Отчёты", "reports", reports, allowDuplicate: false);
+        }
+
         partial void ShowShellLoading(string message)
         {
             _loadingOverlay?.Show(message);

src/ElectronicPharmacy/Form1.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
@@ -80,7 +80,8 @@ namespace Электронная_Фармация
                         dlg.ShowDialog(this);
                     }
 
-                    Application.Exit();
+                    // Жёстко завершаем процесс, чтобы updater смог заменить exe.
+                    Environment.Exit(0);
                     return;
                 }
             }

src/ElectronicPharmacy/Forms/FCheckDatabaseIntegrary.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
@@ -509,76 +509,17 @@ FROM [TempOrderItems];";
                         }
                     }
 
-                    // Перед seed-вставкой грузополучателей нужно гарантировать наличие LocationId,
-                    // иначе INSERT в Consignees (LocationId) упадёт на старых версиях БД.
+                    // LocationId нужен для связи с BuyerLocation на сервере.
                     TryAddColumn(conForCheckTables, "Consignees", "LocationId", "nvarchar(64)");
 
-                    // Seed-тестовые грузополучатели (аптеки) для удобства ручного тестирования.
-                    // Вставляем только если таблица пустая.
-                    using (var countConsigneesCmd = new SQLiteCommand(
-                        @"SELECT COUNT(*) FROM Consignees;",
+                    // Удаляем старые тестовые грузополучатели — точки создаются в веб-кабинете.
+                    using (var delTest = new SQLiteCommand(
+                        @"DELETE FROM Consignees
+                          WHERE ConsigneesName LIKE 'Тестовая аптека%'
+                             OR ConsigneesAddress LIKE 'Тестовый адрес%';",
                         conForCheckTables))
                     {
-                        var countObj = countConsigneesCmd.ExecuteScalar();
-                        var count = 0;
-                        try { count = Convert.ToInt32(countObj); } catch { count = 0; }
-
-                        if (count == 0)
-                        {
-                            var testLocationIds = new[]
-                            {
-                                "87368f6d-488b-41a9-b170-edc629522844",
-                                "c4cd845f-820d-45ac-a473-3df1a0b96feb",
-                                "d6187013-00f5-4c1b-b258-c670cf71d115"
-                            };
-
-                            // Тестовые имена/адреса — можно менять под вашу тестовую среду.
-                            var testNames = new[]
-                            {
-                                "Тестовая аптека 1",
-                                "Тестовая аптека 2",
-                                "Тестовая аптека 3"
-                            };
-
-                            var testAddresses = new[]
-                            {
-                                "Тестовый адрес 1",
-                                "Тестовый адрес 2",
-                                "Тестовый адрес 3"
-                            };
-
-                            using (var tx = conForCheckTables.BeginTransaction())
-                            {
-                                int nextCode;
-                                using (var nextCodeCmd = new SQLiteCommand(
-                                    @"SELECT ifnull(MAX(codeConsignees), 0) + 1 FROM Consignees;",
-                                    conForCheckTables,
-                                    tx))
-                                {
-                                    nextCode = Convert.ToInt32(nextCodeCmd.ExecuteScalar());
-                                }
-
-                                for (var i = 0; i < 3; i++)
-                                {
-                                    using (var insertCmd = new SQLiteCommand(
-                                        @"INSERT INTO Consignees
-                                          (codeConsignees, ConsigneesName, ConsigneesAddress, ConsigneesUseAsDefault, LocationId)
-                                          VALUES (@code, @name, @address, @isDefault, @loc);",
-                                        conForCheckTables,
-                                        tx))
-                                    {
-                                        insertCmd.Parameters.AddWithValue("@code", nextCode + i);
-                                        insertCmd.Parameters.AddWithValue("@name", testNames[i]);
-                                        insertCmd.Parameters.AddWithValue("@address", testAddresses[i]);
-                                        insertCmd.Parameters.AddWithValue("@isDefault", i == 0 ? 1 : 0);
-                                        insertCmd.Parameters.AddWithValue("@loc", testLocationIds[i]);
-                                        insertCmd.ExecuteNonQuery();
-                                    }
-                                }
-
-                                tx.Commit();
-                            }
-                        }
+                        delTest.ExecuteNonQuery();
                     }
 
                     TryAddColumn(conForCheckTables, "Orders", "ConsigneeName", "nvarchar(128)");
@@ -600,7 +541,7 @@ FROM [TempOrderItems];";
                 {
                     try
                     {
-                        var logDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Logs");
+                        var logDir = AppConfig.LogsDirectory;
                         Directory.CreateDirectory(logDir);
                         var logPath = Path.Combine(
                             logDir,

src/ElectronicPharmacy/Forms/FConsignees.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Data;
 using System.Data.SQLite;
+using System.Threading.Tasks;
 using System.Windows.Forms;
 using Электронная_Фармация.Classes;
+using Электронная_Фармация.Properties;
 
 namespace Электронная_Фармация.Forms
 {
@@ -15,10 +17,12 @@ namespace Электронная_Фармация.Forms
             InitializeComponent();
         }
 
-        private void FConsignees_Load(object sender, EventArgs e)
+        private async void FConsignees_Load(object sender, EventArgs e)
         {
             UiThemeHelper.ApplyToControlTree(this);
+            btnAdd.Text = "С сервера";
             showMeContentFromConsigneesTable();
+            await SyncFromServerAsync(silent: true);
         }
 
         void showMeContentFromConsigneesTable()
@@ -49,7 +53,8 @@ order by [ConsigneesUseAsDefault] desc, [ConsigneesName]";
 
                     foreach (DataGridViewColumn column in dgvConsignees.Columns)
                     {
-                        column.ReadOnly = column.Name != "Location ID" && column.Name != "Адрес";
+                        // Редактируем только адрес локально; Location ID и имя приходят с сервера.
+                        column.ReadOnly = column.Name != "Адрес";
                     }
                 }
                 catch (Exception ex)
@@ -88,8 +93,6 @@ order by [ConsigneesUseAsDefault] desc, [ConsigneesName]";
 
             dgvConsignees.EndEdit();
 
-            // Кто должен стать активной аптекой после сохранения.
-            // По вашему ТЗ: "аптека выбранная в этом окне" => текущая выделенная строка.
             var selectedName = dgvConsignees.CurrentRow?.Cells["Наименование"]?.Value?.ToString()?.Trim()
                                 ?? string.Empty;
             SelectedConsigneeNameAfterSave = selectedName;
@@ -108,14 +111,12 @@ order by [ConsigneesUseAsDefault] desc, [ConsigneesName]";
 
                         using (var cmd = new SQLiteCommand(
                             @"UPDATE Consignees
-                              SET ConsigneesAddress = @address,
-                                  LocationId = @locationId
+                              SET ConsigneesAddress = @address
                               WHERE idConsignees = @id",
                             connection,
                             tx))
                         {
                             cmd.Parameters.AddWithValue("@address", row["Адрес"]?.ToString() ?? string.Empty);
-                            cmd.Parameters.AddWithValue("@locationId", row["Location ID"]?.ToString()?.Trim() ?? string.Empty);
                             cmd.Parameters.AddWithValue("@id", Convert.ToInt64(row["Id"]));
                             cmd.ExecuteNonQuery();
                         }
@@ -137,107 +138,58 @@ order by [ConsigneesUseAsDefault] desc, [ConsigneesName]";
             Close();
         }
 
-        private void btnAdd_Click(object sender, EventArgs e)
+        private async void btnAdd_Click(object sender, EventArgs e)
         {
-            using (var dialog = new Form())
+            await SyncFromServerAsync(silent: false);
+        }
+
+        private async Task SyncFromServerAsync(bool silent)
+        {
+            try
             {
-                dialog.Text = "Новая аптека";
-                dialog.FormBorderStyle = FormBorderStyle.FixedDialog;
-                dialog.StartPosition = FormStartPosition.CenterParent;
-                // Немного увеличиваем высоту/ширину на случай DPI/шрифтов.
-                dialog.ClientSize = new System.Drawing.Size(480, 310);
-                dialog.MaximizeBox = false;
-                dialog.MinimizeBox = false;
-                dialog.ShowInTaskbar = false;
-
-                var lblName = new Label { Text = "Наименование", Left = 16, Top = 16, AutoSize = true };
-                var txtName = new TextBox { Left = 16, Top = 42, Width = 440, Height = 28 };
-                var lblAddress = new Label { Text = "Адрес", Left = 16, Top = 82, AutoSize = true };
-                var txtAddress = new TextBox { Left = 16, Top = 108, Width = 440, Height = 28 };
-                var lblLocation = new Label { Text = "Location ID", Left = 16, Top = 148, AutoSize = true };
-                var txtLocation = new TextBox { Left = 16, Top = 174, Width = 440, Height = 28 };
-
-                var btnOk = new Elfisa.UI.Controls.ModernButton
+                btnAdd.Enabled = false;
+                var client = new ApiClient();
+                if (!client.IsAuthenticated)
                 {
-                    Text = "Добавить",
-                    DialogResult = DialogResult.OK
-                };
-                var btnCancel = new Elfisa.UI.Controls.ModernButton
-                {
-                    Text = "Отмена",
-                    DialogResult = DialogResult.Cancel
-                };
-
-                dialog.Controls.AddRange(new Control[]
-                {
-                    lblName, txtName, lblAddress, txtAddress, lblLocation, txtLocation, btnOk, btnCancel
-                });
-                dialog.AcceptButton = btnOk;
-                dialog.CancelButton = btnCancel;
-                UiThemeHelper.ApplyToControlTree(dialog);
-
-                btnOk.Padding = new Padding(12, 4, 12, 4);
-                btnCancel.Padding = new Padding(12, 4, 12, 4);
-                Elfisa.UI.Controls.ModernButtonStyles.FitToText(btnOk, 36);
-                Elfisa.UI.Controls.ModernButtonStyles.FitToText(btnCancel, 36);
-                btnOk.Height = 36;
-                btnCancel.Height = 36;
-
-                const int padding = 16;
-                const int gap = 10;
-
-                // Минимально гарантируем ширину, чтобы обе кнопки поместились.
-                var requiredWidth = btnOk.Width + btnCancel.Width + gap + padding * 2;
-                if (dialog.ClientSize.Width < requiredWidth)
-                {
-                    dialog.ClientSize = new System.Drawing.Size(requiredWidth, dialog.ClientSize.Height);
-                }
-
-                // Всегда зажимаем в границы формы после вычисления ширины ModernButton'ов.
-                btnCancel.Left = Math.Max(padding, dialog.ClientSize.Width - btnCancel.Width - padding);
-                btnCancel.Top = dialog.ClientSize.Height - btnCancel.Height - padding;
-
-                btnOk.Left = Math.Max(padding, btnCancel.Left - btnOk.Width - gap);
-                btnOk.Top = btnCancel.Top;
-
-                if (dialog.ShowDialog(this) != DialogResult.OK)
-                {
-                    return;
-                }
-
-                var name = (txtName.Text ?? string.Empty).Trim();
-                var address = (txtAddress.Text ?? string.Empty).Trim();
-                var locationId = (txtLocation.Text ?? string.Empty).Trim();
-                if (string.IsNullOrWhiteSpace(name))
-                {
-                    UiDialogs.ShowError("Укажите наименование аптеки.", "Грузополучатели", this);
-                    return;
-                }
-
-                using (var connection = new SQLiteConnection(AppConfig.SqliteConnectionString))
-                {
-                    connection.Open();
-                    int nextCode = 1;
-                    using (var codeCmd = new SQLiteCommand("SELECT ifnull(MAX(codeConsignees), 0) + 1 FROM Consignees", connection))
+                    var token = Settings.Default.stringToken;
+                    if (string.IsNullOrWhiteSpace(token))
                     {
-                        nextCode = Convert.ToInt32(codeCmd.ExecuteScalar());
-                    }
-
-                    using (var insert = new SQLiteCommand(
-                        @"INSERT INTO Consignees (codeConsignees, ConsigneesName, ConsigneesAddress, ConsigneesUseAsDefault, LocationId)
-                          VALUES (@code, @name, @address, 0, @locationId)",
-                        connection))
-                    {
-                        insert.Parameters.AddWithValue("@code", nextCode);
-                        insert.Parameters.AddWithValue("@name", name);
-                        insert.Parameters.AddWithValue("@address", address);
-                        insert.Parameters.AddWithValue("@locationId", locationId);
-                        insert.ExecuteNonQuery();
+                        if (!silent)
+                        {
+                            UiDialogs.ShowInfo(
+                                "Сначала войдите на сервер — грузополучатели подтягиваются из веб-кабинета покупателя.",
+                                "Грузополучатели",
+                                this);
+                        }
+                        return;
                     }
+                    client.SetToken(token);
                 }
 
-                ToastNotification.ShowSuccess("Аптека добавлена");
+                var locations = await client.GetBuyerLocationsAsync();
+                var count = ConsigneeHelper.SyncFromServer(locations);
                 showMeContentFromConsigneesTable();
+                if (!silent)
+                {
+                    ToastNotification.ShowSuccess(count > 0
+                        ? $"Обновлено грузополучателей: {count}"
+                        : "На сервере пока нет грузополучателей");
+                }
+            }
+            catch (Exception ex)
+            {
+                if (!silent)
+                {
+                    UiDialogs.ShowError($"Не удалось загрузить грузополучателей с сервера.\n{ex.Message}", "Грузополучатели", this);
+                }
+                else
+                {
+                    AppDebugLog.Error("FConsignees", "Тихая синхронизация грузополучателей не удалась", ex);
+                }
+            }
+            finally
+            {
+                btnAdd.Enabled = true;
             }
         }
 
@@ -249,15 +201,15 @@ order by [ConsigneesUseAsDefault] desc, [ConsigneesName]";
                 return;
             }
 
-            var name = dgvConsignees.CurrentRow.Cells["Наименование"]?.Value?.ToString();
+            var name = dgvConsignees.CurrentRow.Cells["Наименование"]?.Value?.ToString()?.Trim();
             if (string.IsNullOrWhiteSpace(name))
             {
                 return;
             }
 
             ConsigneeHelper.SetActiveConsignee(name);
-            ToastNotification.ShowSuccess($"Аптека по умолчанию: {name}");
             showMeContentFromConsigneesTable();
+            ToastNotification.ShowSuccess($"Аптека по умолчанию: {name}");
         }
     }
 }

src/ElectronicPharmacy/HelpForms/HF_DownloadDataFromServer.cs

@@ -54,6 +54,21 @@ namespace Электронная_Фармация.HelpForms
                 SetOverallProgress(1, "Авторизация...");
                 await EnsureAuthenticatedAsync(client);
 
+                try
+                {
+                    AppendStatus("Загружаю грузополучателей с сервера...");
+                    var locations = await client.GetBuyerLocationsAsync();
+                    var synced = ConsigneeHelper.SyncFromServer(locations);
+                    AppendStatus(synced > 0
+                        ? $"Грузополучателей обновлено: {synced}"
+                        : "Грузополучателей на сервере пока нет");
+                }
+                catch (Exception locEx)
+                {
+                    AppendStatus($"Грузополучатели не обновлены: {locEx.Message}");
+                    AppDebugLog.Error("Download", "Не удалось синхронизировать грузополучателей", locEx);
+                }
+
                 SetOverallProgress(3, "Загрузка прайса с сервера...");
                 AppendStatus("Загружаю сводный прайс...");
                 var allSuppliersSummary = await GetFullPriceSummaryPagedAsync(client);

src/ElectronicPharmacy/HelpForms/HF_UpdateAvailable.cs

@@ -53,8 +53,11 @@ namespace Электронная_Фармация.HelpForms
             {
                 await AutoUpdater.ApplyUpdateAsync(_result, progress);
                 lblMessage.Text = "Обновление скачано. Перезапуск...";
+                // Снимаем блокировку закрытия, иначе диалог зависает навечно
+                // на «Перезапуск...» и updater ждёт PID, который не завершается.
+                _updating = false;
                 DialogResult = DialogResult.OK;
-                Application.Exit();
+                Close();
             }
             catch (Exception ex)
             {
@@ -84,7 +87,8 @@ namespace Электронная_Фармация.HelpForms
 
         private void HF_UpdateAvailable_FormClosing(object sender, FormClosingEventArgs e)
         {
-            if (_updating)
+            // Блокируем только ручное закрытие во время скачивания.
+            if (_updating && DialogResult != DialogResult.OK)
             {
                 e.Cancel = true;
                 return;

src/ElectronicPharmacy/Program.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Windows.Forms;
 using System.Net;
 using Электронная_Фармация.Classes;

src/ElectronicPharmacy/Properties/AssemblyInfo.cs

@@ -1,36 +1,37 @@
-using System.Reflection;
+using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
-// Общие сведения об этой сборке предоставляются следующим набором
-// набора атрибутов. Измените значения этих атрибутов для изменения сведений,
-// связанных со сборкой.
-[assembly: AssemblyTitle("Электронная Фармация")]
+// пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ
+// пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ. пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ,
+// пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ.
+[assembly: AssemblyTitle("пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
-[assembly: AssemblyProduct("Электронная Фармация")]
-[assembly: AssemblyCopyright("Copyright ©  2023")]
+[assembly: AssemblyProduct("пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ")]
+[assembly: AssemblyCopyright("Copyright пїЅ  2023")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
-// Установка значения False для параметра ComVisible делает типы в этой сборке невидимыми
-// для компонентов COM. Если необходимо обратиться к типу в этой сборке через
-// COM, следует установить атрибут ComVisible в TRUE для этого типа.
+// пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ False пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ ComVisible пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ пїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ
+// пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ COM. пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅ пїЅпїЅпїЅпїЅ пїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ
+// COM, пїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ ComVisible пїЅ TRUE пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ.
 [assembly: ComVisible(false)]
 
-// Следующий GUID служит для идентификации библиотеки типов, если этот проект будет видимым для COM
+// пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ GUID пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ, пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅ COM
 [assembly: Guid("145d8060-4187-4871-b4fb-8df795727b66")]
 
-// Сведения о версии сборки состоят из указанных ниже четырех значений:
+// пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ:
 //
-//      Основной номер версии
-//      Дополнительный номер версии
-//      Номер сборки
-//      Редакция
+//      пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ
+//      пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ
+//      пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ
+//      пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ
 //
-// Можно задать все значения или принять номера сборки и редакции по умолчанию 
-// используя "*", как показано ниже:
+// пїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅ пїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ 
+// пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ "*", пїЅпїЅпїЅ пїЅпїЅпїЅпїЅпїЅпїЅпїЅпїЅ пїЅпїЅпїЅпїЅ:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.13.0")]
-[assembly: AssemblyFileVersion("1.0.13.0")]
+[assembly: AssemblyVersion("1.0.29.0")]
+[assembly: AssemblyFileVersion("1.0.29.0")]
+

src/ElectronicPharmacy/Properties/Settings.Designer.cs

@@ -1,4 +1,4 @@
-//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
 // <auto-generated>
 //     Этот код создан программой.
 //     Исполняемая версия:4.0.30319.42000
@@ -131,6 +131,18 @@ namespace Электронная_Фармация.Properties {
             }
         }
 
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("0")]
+        public int PriceListSplitterDistance {
+            get {
+                return ((int)(this["PriceListSplitterDistance"]));
+            }
+            set {
+                this["PriceListSplitterDistance"] = value;
+            }
+        }
+
         [global::System.Configuration.UserScopedSettingAttribute()]
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Configuration.DefaultSettingValueAttribute("")]

src/ElectronicPharmacy/Properties/Settings.settings

@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version='1.0' encoding='utf-8'?>
 <SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)" GeneratedClassNamespace="Электронная_Фармация.Properties" GeneratedClassName="Settings">
   <Profiles />
   <Settings>
@@ -29,6 +29,9 @@
     <Setting Name="UseDarkTheme" Type="System.Boolean" Scope="User">
       <Value Profile="(Default)">False</Value>
     </Setting>
+    <Setting Name="PriceListSplitterDistance" Type="System.Int32" Scope="User">
+      <Value Profile="(Default)">0</Value>
+    </Setting>
     <Setting Name="InvoiceExportPath" Type="System.String" Scope="User">
       <Value Profile="(Default)" />
     </Setting>

src/ElectronicPharmacy/UserControls/FOrders.cs

@@ -37,7 +37,7 @@ namespace Электронная_Фармация.UserControls
             dtpDateFrom.Value = DateTime.Now.AddDays(-3);
             dtpDateTo.Value = DateTime.Now;
 
-            LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), string.Empty);
+            LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), string.Empty);
 
             loadSuppliers();
             comboSuppliers.Visible = true;
@@ -334,8 +334,8 @@ namespace Электронная_Фармация.UserControls
 
             var addon = parts.Count == 0 ? string.Empty : " and " + string.Join(" and ", parts);
             LoadOrders(
-                dtpDateFrom.Value.ToString("dd.MM.yyyy"),
-                dtpDateTo.Value.ToString("dd.MM.yyyy"),
+                dtpDateFrom.Value.ToString("yyyy-MM-dd"),
+                dtpDateTo.Value.ToString("yyyy-MM-dd"),
                 addon);
         }
 
@@ -411,6 +411,14 @@ namespace Электронная_Фармация.UserControls
         {
             string connectionStringToLocalDB = AppConfig.SqliteConnectionString;
 
+            // OrderDate в БД исторически dd.MM.yyyy — сравниваем как даты, не как строки,
+            // иначе «03.08» не попадает в диапазон «с 31.07» (лексикографически).
+            const string orderDateIso = @"CASE
+ WHEN length(OrderDate)=10 AND substr(OrderDate,3,1)='.' THEN
+  substr(OrderDate,7,4)||'-'||substr(OrderDate,4,2)||'-'||substr(OrderDate,1,2)
+ ELSE OrderDate
+END";
+
             string qShowMeOrders = $@"
 select 
 [Id_Order],
@@ -425,8 +433,8 @@ select
 [ConsigneeName]
 from Orders
 where
-OrderDate >= '{dateFrom}'
-and OrderDate <= '{dateTo}'
+({orderDateIso}) >= '{dateFrom}'
+and ({orderDateIso}) <= '{dateTo}'
 {filters}
 ";
 
@@ -684,25 +692,25 @@ order by SupplierName asc";
         {
             txtGoodFromOrders.Text = "Товар";
             filter = string.Empty;
-            LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+            LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
         }
 
         private void dtpDateFrom_ValueChanged(object sender, EventArgs e)
         {
 
-            LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+            LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
         }
 
         private void dtpDateTo_ValueChanged(object sender, EventArgs e)
         {
-            LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+            LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
         }
 
         private void dtpDateTo_KeyPress(object sender, KeyPressEventArgs e)
         {
             if (e.KeyChar == (Char)Keys.Enter)
             {
-                LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+                LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
             }
         }
 
@@ -710,7 +718,7 @@ order by SupplierName asc";
         {
             if (e.KeyChar == (Char)Keys.Enter)
             {
-                LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+                LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
             }
         }
 
@@ -734,7 +742,7 @@ order by SupplierName asc";
 and Id_Order in (select Id_Order from OrderItems where DrugName like '%{txtGoodFromOrders.Text}%')
 ";
 
-                    LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+                    LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
                 }
             }
         }
@@ -881,7 +889,7 @@ where [id_order] = '{idPriceList}'
 and OrderNumber like '%{txtOrderNumberFilter.Text}%'
 ";
 
-                    LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+                    LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
                 }
             }
         }
@@ -906,7 +914,7 @@ and OrderNumber like '%{txtOrderNumberFilter.Text}%'
         {
             txtOrderNumberFilter.Text = "Номер заказа";
             filter = string.Empty;
-            LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), filter);
+            LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), filter);
         }
 
         private void btnAddComment_Click(object sender, EventArgs e)
@@ -919,7 +927,7 @@ and OrderNumber like '%{txtOrderNumberFilter.Text}%'
 
                 HF_Comment hf_comment = new HF_Comment(OrderNumber, Id_Order);
                 hf_comment.ShowDialog();
-                LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), string.Empty);
+                LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), string.Empty);
             }
         }
 
@@ -956,7 +964,7 @@ and OrderNumber like '%{txtOrderNumberFilter.Text}%'
                                 //ToastNotification.ShowCustom($"Заказ {OrderNumber} был удалён", Color.DarkOrange, Color.White);
                                 ToastNotification.ShowSuccess($"Заказ {OrderNumber} был удалён");
                                 //MessageBox.Show($"Заказ {OrderNumber} был успешно удалён.", "Удаление заказа", MessageBoxButtons.OK, MessageBoxIcon.Information);
-                                LoadOrders(dtpDateFrom.Value.ToString("dd.MM.yyyy"), dtpDateTo.Value.ToString("dd.MM.yyyy"), string.Empty);
+                                LoadOrders(dtpDateFrom.Value.ToString("yyyy-MM-dd"), dtpDateTo.Value.ToString("yyyy-MM-dd"), string.Empty);
                             }
                             catch(Exception ex)
                             {

src/ElectronicPharmacy/UserControls/UCOrderItems.cs

@@ -554,8 +554,9 @@ group by SupplierName
 
         void createOrderForNextSuppliers(string SupName)
         {
-            string OrderNumber = $"EP-{DateTime.Now:yyyyMMdd-HHmmss}-{Guid.NewGuid().ToString("N").Substring(0, 6)}";
-            string OrderDate = DateTime.Now.ToString("dd.MM.yyyy");
+            // Глобальный номер EX-0000001… (сервер / локальный fallback).
+            string OrderNumber = OrderNumberHelper.AllocateForNewOrder();
+            string OrderDate = DateTime.Now.ToString("yyyy-MM-dd");
             _consigneeName = ParentForm?.ConsigneeName ?? _consigneeName ?? string.Empty;
             var consigneeSafe = (_consigneeName ?? string.Empty).Replace("'", "''");
             var supNameSafe = (SupName ?? string.Empty).Replace("'", "''");

src/ElectronicPharmacy/UserControls/UCPriceList.Designer.cs

@@ -1,4 +1,4 @@
-namespace Электронная_Фармация.UserControls
+namespace Электронная_Фармация.UserControls
 {
     partial class UCPriceList
     {
@@ -99,7 +99,7 @@
             this.SplitPriceList.Panel2.Controls.Add(this.POrderInfo);
             this.SplitPriceList.Size = new System.Drawing.Size(1053, 532);
             this.SplitPriceList.SplitterDistance = 290;
-            this.SplitPriceList.SplitterWidth = 2;
+            this.SplitPriceList.SplitterWidth = 6;
             this.SplitPriceList.TabIndex = 0;
             // 
             // TLPPriceList

src/ElectronicPharmacy/UserControls/UCPriceList.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
@@ -78,13 +78,14 @@ namespace Электронная_Фармация.UserControls
         private void UCPriceList_Load(object sender, EventArgs e)
         {
             EnsureBrowseSplit();
+            EnsureChromeLayout();
             UiThemeHelper.ApplyToControlTree(this);
             Tag = "chrome-child";
 
             AlignSearchRow();
+            LayoutContentBelowSearch();
 
-            panel1.SizeChanged += (_, __) => LayoutMarkupRow();
-            LayoutMarkupRow();
+            SizeChanged += (_, __) => LayoutContentBelowSearch();
 
             txtConsignee.Enabled = false;
             txtConsignee.Text = _WorkWithConsignee;
@@ -97,6 +98,120 @@ namespace Электронная_Фармация.UserControls
             txtSearchGoodNameInPriceList.Focus();
         }
 
+        /// <summary>
+        /// Поиск остаётся сверху как в оригинале; контент явно ниже — без Dock-наложения.
+        /// </summary>
+        private void EnsureChromeLayout()
+        {
+            // Убираем старую dock-панель, если осталась от прошлых сборок в той же сессии.
+            var oldToolbar = Controls["priceToolbar"];
+            if (oldToolbar != null)
+            {
+                var toRestore = oldToolbar.Controls.Cast<Control>().ToArray();
+                foreach (var control in toRestore)
+                {
+                    oldToolbar.Controls.Remove(control);
+                    Controls.Add(control);
+                    control.BringToFront();
+                }
+
+                Controls.Remove(oldToolbar);
+                oldToolbar.Dispose();
+            }
+
+            // Строка наценки скрыта — проценты берутся из настроек/дефолта без UI-прослойки.
+            if (TLPPriceList.RowStyles.Count >= 2)
+            {
+                TLPPriceList.RowStyles[1].SizeType = SizeType.Absolute;
+                TLPPriceList.RowStyles[1].Height = 0;
+            }
+
+            panel1.Visible = false;
+            panel1.Height = 0;
+
+            SplitPriceList.Panel1MinSize = 120;
+            SplitPriceList.Panel2MinSize = 80;
+            SplitPriceList.IsSplitterFixed = false;
+            SplitPriceList.FixedPanel = FixedPanel.None;
+            SplitPriceList.SplitterWidth = 6;
+
+            // Восстановить положение сплиттера корзины, если пользователь уже двигал.
+            RestoreCartSplitterDistance();
+            SplitPriceList.SplitterMoved += (_, __) => PersistCartSplitterDistance();
+
+            dgvPriceList.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
+            dgvPriceList.ColumnHeadersVisible = true;
+            dgvPriceList.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
+            if (dgvPriceList.ColumnHeadersHeight < 34)
+            {
+                dgvPriceList.ColumnHeadersHeight = 36;
+            }
+
+            if (!POrderInfo.Controls.ContainsKey("cartHeader"))
+            {
+                var cartHeader = new ModernSectionHeader
+                {
+                    Name = "cartHeader",
+                    Height = 32,
+                    HeaderText = "Корзина"
+                };
+                cartHeader.ApplyTheme(Elfisa.UI.Theming.ThemeManager.Colors, cartStyle: true);
+                cartHeader.Dock = DockStyle.Top;
+                POrderInfo.Controls.Add(cartHeader);
+                tabOrderItems.SendToBack();
+                cartHeader.BringToFront();
+            }
+        }
+
+        private void LayoutContentBelowSearch()
+        {
+            const int searchBand = 52;
+            PContentPriceList.Dock = DockStyle.None;
+            PContentPriceList.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            PContentPriceList.SetBounds(
+                0,
+                searchBand,
+                Math.Max(100, ClientSize.Width),
+                Math.Max(120, ClientSize.Height - searchBand));
+        }
+
+        private void RestoreCartSplitterDistance()
+        {
+            try
+            {
+                var saved = Properties.Settings.Default.PriceListSplitterDistance;
+                if (saved <= 0 || SplitPriceList.Height < 200)
+                {
+                    return;
+                }
+
+                var max = Math.Max(
+                    SplitPriceList.Panel1MinSize,
+                    SplitPriceList.Height - SplitPriceList.Panel2MinSize - SplitPriceList.SplitterWidth);
+                SplitPriceList.SplitterDistance = Math.Max(SplitPriceList.Panel1MinSize, Math.Min(saved, max));
+            }
+            catch
+            {
+                // ignore until layout ready
+            }
+        }
+
+        private void PersistCartSplitterDistance()
+        {
+            try
+            {
+                if (SplitPriceList.SplitterDistance > 80)
+                {
+                    Properties.Settings.Default.PriceListSplitterDistance = SplitPriceList.SplitterDistance;
+                    Properties.Settings.Default.Save();
+                }
+            }
+            catch
+            {
+                // ignore
+            }
+        }
+
         private void EnsureBrowseSplit()
         {
             if (splitNameMgBrowse != null)
@@ -112,13 +227,35 @@ namespace Электронная_Фармация.UserControls
                 Name = "splitNameMgBrowse",
                 Dock = DockStyle.Fill,
                 Orientation = Orientation.Vertical,
-                SplitterWidth = 4,
-                Visible = false
+                SplitterWidth = 6,
+                Visible = false,
+                Panel1MinSize = 100,
+                Panel2MinSize = 80,
+                IsSplitterFixed = false,
+                FixedPanel = FixedPanel.None
             };
             splitNameMgBrowse.Panel1.Controls.Add(dgvBrowseNames);
             splitNameMgBrowse.Panel2.Controls.Add(dgvBrowseMg);
 
-            TLPPriceList.Controls.Add(splitNameMgBrowse, 0, 0);
+            var gridHost = TLPPriceList.Controls["priceGridHost"] as Panel;
+            if (gridHost == null)
+            {
+                gridHost = new Panel
+                {
+                    Name = "priceGridHost",
+                    Dock = DockStyle.Fill,
+                    Margin = new Padding(0),
+                    Padding = new Padding(0),
+                    Tag = "chrome-child"
+                };
+
+                TLPPriceList.Controls.Remove(dgvPriceList);
+                dgvPriceList.Dock = DockStyle.Fill;
+                gridHost.Controls.Add(dgvPriceList);
+                TLPPriceList.Controls.Add(gridHost, 0, 0);
+            }
+
+            gridHost.Controls.Add(splitNameMgBrowse);
             splitNameMgBrowse.BringToFront();
 
             dgvBrowseNames.SelectionChanged += dgvBrowseNames_SelectionChanged;
@@ -157,11 +294,13 @@ namespace Электронная_Фармация.UserControls
 
         private void AlignSearchRow()
         {
-            const int searchY = 9;
+            const int searchY = 10;
             const int searchHeight = 32;
-            const int clearGap = 2;
+            const int clearGap = 4;
+            const int leftPad = 10;
 
-            txtSearchGoodNameInPriceList.SetBounds(78, searchY, 313, searchHeight);
+            label2.Location = new Point(leftPad, searchY + 4);
+            txtSearchGoodNameInPriceList.SetBounds(label2.Right + 6, searchY, 300, searchHeight);
             btnClearSearchInPriceList.SetBounds(
                 txtSearchGoodNameInPriceList.Right + clearGap,
                 searchY,
@@ -169,38 +308,23 @@ namespace Электронная_Фармация.UserControls
                 searchHeight);
             ModernButtonStyles.ApplyClear(btnClearSearchInPriceList);
 
+            lblSupplierFilter.Location = new Point(btnClearSearchInPriceList.Right + 16, searchY + 4);
+            comboSupplierFilter.SetBounds(lblSupplierFilter.Right + 6, searchY, 240, searchHeight);
+            btnClearSupplierFilter.SetBounds(comboSupplierFilter.Right + clearGap, searchY, 32, searchHeight);
             btnClearSupplierFilter.Height = searchHeight;
+
+            // Поиск всегда поверх контента, но контент начинается ниже searchBand.
+            label2.BringToFront();
+            txtSearchGoodNameInPriceList.BringToFront();
+            btnClearSearchInPriceList.BringToFront();
+            lblSupplierFilter.BringToFront();
+            comboSupplierFilter.BringToFront();
+            btnClearSupplierFilter.BringToFront();
         }
 
         private void LayoutMarkupRow()
         {
-            // Keep markup row readable at different DPI/window sizes.
-            try
-            {
-                var paddingLeft = 8;
-                var y = 30;
-                var gap = 8;
-
-                label4.Location = new Point(paddingLeft, y + 2);
-
-                numericPercent.Location = new Point(label4.Right + 6, y);
-                numericPercent.Width = 56;
-
-                checkUsePercentageAsDefault.AutoSize = true;
-                checkUsePercentageAsDefault.Location = new Point(
-                    Math.Max(numericPercent.Right + gap, panel1.ClientSize.Width - checkUsePercentageAsDefault.PreferredSize.Width - 10),
-                    y + 2);
-
-                lblPriceForGood.AutoSize = false;
-                lblPriceForGood.AutoEllipsis = true;
-                lblPriceForGood.Location = new Point(numericPercent.Right + gap, y + 2);
-                lblPriceForGood.Height = 22;
-                lblPriceForGood.Width = Math.Max(90, checkUsePercentageAsDefault.Left - lblPriceForGood.Left - gap);
-            }
-            catch
-            {
-                // best-effort layout; ignore
-            }
+            // UI наценки скрыт; метод оставлен на случай повторного включения.
         }
 
         private void InitializeSupplierFilter()
@@ -725,10 +849,21 @@ namespace Электронная_Фармация.UserControls
         {
             EnsureBrowseSplit();
 
+            var gridHost = TLPPriceList.Controls["priceGridHost"] as Panel;
+            if (gridHost != null)
+            {
+                gridHost.Dock = DockStyle.Fill;
+                if (gridHost.Padding.Top < 8)
+                {
+                    gridHost.Padding = new Padding(0, 8, 0, 0);
+                }
+            }
+
             if (browseVisible)
             {
                 dgvPriceList.Visible = false;
                 splitNameMgBrowse.Visible = true;
+                splitNameMgBrowse.Dock = DockStyle.Fill;
                 splitNameMgBrowse.BringToFront();
 
                 var width = Math.Max(200, splitNameMgBrowse.Width);
@@ -754,6 +889,9 @@ namespace Электронная_Фармация.UserControls
 
                 splitNameMgBrowse.Visible = false;
                 dgvPriceList.Visible = true;
+                dgvPriceList.Dock = DockStyle.Fill;
+                dgvPriceList.ColumnHeadersVisible = true;
+                dgvPriceList.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
                 dgvPriceList.BringToFront();
             }
         }
@@ -1383,7 +1521,7 @@ BestBefore  = '{BestBefore}'
         {
             string connectionStringToLocalDB = AppConfig.SqliteConnectionString;
 
-            string OrderNumber = $"EP-{DateTime.Now.Millisecond.ToString()}{DateTime.Now.Date.ToString("mmdd")}";
+            string OrderNumber = OrderNumberHelper.AllocateForNewOrder();
             string OrderDate = DateTime.Now.ToString("yyyy-MM-dd");//DateTime.Now.ToShortDateString();
 
             

src/ElectronicPharmacy/UserControls/UCReports.cs

@@ -0,0 +1,318 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using Электронная_Фармация.Classes;
+using Электронная_Фармация.Properties;
+
+namespace Электронная_Фармация.UserControls
+{
+    /// <summary>
+    /// Раздел «Отчёты» покупателя. Данные тянутся с сервера (/api/buyer/report),
+    /// который скоупит их по JWT покупателя — клиент видит ТОЛЬКО свои заказы.
+    /// Все 4 отчёта агрегируются на клиенте из одного набора строк.
+    /// </summary>
+    public class UCReports : UserControl
+    {
+        private readonly DateTimePicker _dtFrom;
+        private readonly DateTimePicker _dtTo;
+        private readonly ComboBox _cboReport;
+        private readonly Button _btnBuild;
+        private readonly Label _lblTotals;
+        private readonly DataGridView _grid;
+        private readonly TextBox _txtPrompt;
+        private readonly ComboBox _cboFormat;
+        private readonly Button _btnAi;
+        private List<BuyerReportLineDto> _lines = new List<BuyerReportLineDto>();
+
+        // Палитра под общий стиль приложения (бирюза шапки #0F766E).
+        private static readonly Color Accent      = Color.FromArgb(15, 118, 110);
+        private static readonly Color AccentHover = Color.FromArgb(13, 148, 136);
+        private static readonly Color TextMain    = Color.FromArgb(31, 41, 55);
+        private static readonly Color TextMuted   = Color.FromArgb(120, 128, 134);
+        private static readonly Color RowAlt      = Color.FromArgb(247, 250, 250);
+        private static readonly Color SelBack     = Color.FromArgb(178, 240, 230);
+        private static readonly Color GridLine    = Color.FromArgb(230, 234, 236);
+
+        private static void StylePrimaryButton(Button b)
+        {
+            b.FlatStyle = FlatStyle.Flat;
+            b.FlatAppearance.BorderSize = 0;
+            b.FlatAppearance.MouseOverBackColor = AccentHover;
+            b.FlatAppearance.MouseDownBackColor = AccentHover;
+            b.BackColor = Accent;
+            b.ForeColor = Color.White;
+            b.Cursor = Cursors.Hand;
+            b.Font = new Font("Segoe UI", 9F, FontStyle.Regular);
+        }
+
+        public UCReports()
+        {
+            Dock = DockStyle.Fill;
+
+            var uiFont = new Font("Segoe UI", 9F);
+            var top = new Panel { Dock = DockStyle.Top, Height = 100, BackColor = Color.White };
+
+            // --- строка 1: период + готовый отчёт по данным ---
+            var lblFrom = new Label { Text = "С", AutoSize = true, Left = 12, Top = 17, ForeColor = TextMain, Font = uiFont };
+            _dtFrom = new DateTimePicker { Format = DateTimePickerFormat.Short, Width = 112, Left = 32, Top = 13, Value = DateTime.Today.AddMonths(-1), Font = uiFont };
+            var lblTo = new Label { Text = "по", AutoSize = true, Left = 150, Top = 17, ForeColor = TextMain, Font = uiFont };
+            _dtTo = new DateTimePicker { Format = DateTimePickerFormat.Short, Width = 112, Left = 176, Top = 13, Value = DateTime.Today, Font = uiFont };
+            _cboReport = new ComboBox { DropDownStyle = ComboBoxStyle.DropDownList, Width = 190, Left = 298, Top = 13, Font = uiFont, FlatStyle = FlatStyle.Flat };
+            _cboReport.Items.AddRange(new object[] { "Мои заказы", "По поставщикам", "По товарам", "По аптекам" });
+            _cboReport.SelectedIndex = 0;
+            _btnBuild = new Button { Text = "Сформировать", Left = 498, Top = 12, Width = 140, Height = 28 };
+            _lblTotals = new Label { AutoSize = true, Left = 654, Top = 17, Text = "", ForeColor = Accent, Font = new Font("Segoe UI", 9F, FontStyle.Bold) };
+
+            top.Controls.AddRange(new Control[] { lblFrom, _dtFrom, lblTo, _dtTo, _cboReport, _btnBuild, _lblTotals });
+
+            // --- строка 2: свободный запрос к ИИ (клиент пишет словами -> Word/Excel) ---
+            var lblAi = new Label { Text = "Запрос ИИ:", AutoSize = true, Left = 12, Top = 61, ForeColor = TextMain, Font = uiFont };
+            _txtPrompt = new TextBox { Left = 92, Top = 57, Width = 470, Font = uiFont, BorderStyle = BorderStyle.FixedSingle };
+            _cboFormat = new ComboBox { DropDownStyle = ComboBoxStyle.DropDownList, Left = 574, Top = 57, Width = 92, Font = uiFont, FlatStyle = FlatStyle.Flat };
+            _cboFormat.Items.AddRange(new object[] { "Word", "Excel" });
+            _cboFormat.SelectedIndex = 0;
+            _btnAi = new Button { Text = "🤖 Сформировать ИИ", Left = 676, Top = 56, Width = 170, Height = 28 };
+            _btnAi.Text = "Сформировать ИИ";   // без эмодзи (криво рендерился в кнопке)
+            var lblHint = new Label { AutoSize = true, Left = 92, Top = 83, ForeColor = TextMuted, Font = new Font("Segoe UI", 8F),
+                Text = "Напр.: «закупки по поставщикам за июль», «топ товаров за 3 месяца», «заказы у Farmsnab»" };
+
+            StylePrimaryButton(_btnBuild);
+            StylePrimaryButton(_btnAi);
+
+            var tip = new ToolTip();
+            tip.SetToolTip(_txtPrompt, "Опишите нужный отчёт словами — ИИ подберёт тип, период и соберёт документ.");
+
+            top.Controls.AddRange(new Control[] { lblAi, _txtPrompt, _cboFormat, _btnAi, lblHint });
+
+            _grid = new DataGridView
+            {
+                Dock = DockStyle.Fill,
+                ReadOnly = true,
+                AllowUserToAddRows = false,
+                AllowUserToDeleteRows = false,
+                AllowUserToResizeRows = false,
+                RowHeadersVisible = false,
+                SelectionMode = DataGridViewSelectionMode.FullRowSelect,
+                AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill,
+                BorderStyle = BorderStyle.None,
+                BackgroundColor = Color.White,
+                EnableHeadersVisualStyles = false,
+                ColumnHeadersBorderStyle = DataGridViewHeaderBorderStyle.None,
+                ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing,
+                ColumnHeadersHeight = 34,
+                CellBorderStyle = DataGridViewCellBorderStyle.SingleHorizontal,
+                GridColor = GridLine,
+                RowHeadersBorderStyle = DataGridViewHeaderBorderStyle.None
+            };
+            _grid.ColumnHeadersDefaultCellStyle.BackColor = Accent;
+            _grid.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
+            _grid.ColumnHeadersDefaultCellStyle.Font = new Font("Segoe UI", 9.5F, FontStyle.Bold);
+            _grid.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
+            _grid.ColumnHeadersDefaultCellStyle.Padding = new Padding(6, 0, 0, 0);
+            _grid.DefaultCellStyle.Font = new Font("Segoe UI", 9.5F);
+            _grid.DefaultCellStyle.ForeColor = TextMain;
+            _grid.DefaultCellStyle.SelectionBackColor = SelBack;
+            _grid.DefaultCellStyle.SelectionForeColor = TextMain;
+            _grid.DefaultCellStyle.Padding = new Padding(6, 0, 6, 0);
+            _grid.AlternatingRowsDefaultCellStyle.BackColor = RowAlt;
+            _grid.RowTemplate.Height = 30;
+
+            Controls.Add(_grid);
+            Controls.Add(top);
+
+            _btnBuild.Click += async (_, __) => await LoadAsync();
+            _cboReport.SelectedIndexChanged += (_, __) => Render();
+            _btnAi.Click += async (_, __) => await BuildAiAsync();
+            _txtPrompt.KeyDown += async (_, e) =>
+            {
+                if (e.KeyCode == Keys.Enter) { e.SuppressKeyPress = true; await BuildAiAsync(); }
+            };
+        }
+
+        private async Task BuildAiAsync()
+        {
+            var prompt = _txtPrompt.Text?.Trim();
+            if (string.IsNullOrWhiteSpace(prompt))
+            {
+                ToastNotification.ShowError("Введите запрос для ИИ.");
+                return;
+            }
+
+            var token = Settings.Default.stringToken;
+            if (string.IsNullOrWhiteSpace(token))
+            {
+                ToastNotification.ShowError("Не найден токен авторизации. Войдите в систему.");
+                return;
+            }
+
+            try
+            {
+                _btnAi.Enabled = false;
+                _btnAi.Text = "Формирую…";
+
+                var fmt = _cboFormat.SelectedIndex == 1 ? "xlsx" : "docx";
+                var client = new ApiClient();
+                client.SetToken(token);
+                var result = await client.GenerateAiReportAsync(prompt, fmt);
+
+                var dir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+                var safe = string.Join("_", (result.FileName ?? "Отчёт").Split(Path.GetInvalidFileNameChars()));
+                var path = Path.Combine(dir, safe);
+                if (File.Exists(path))
+                {
+                    var name = Path.GetFileNameWithoutExtension(safe);
+                    var ext = Path.GetExtension(safe);
+                    path = Path.Combine(dir, $"{name}_{DateTime.Now:yyyyMMdd_HHmmss}{ext}");
+                }
+
+                File.WriteAllBytes(path, result.Content);
+                ToastNotification.ShowCustom("Отчёт готов, открываю…", Color.SeaGreen, Color.White);
+                Process.Start(new ProcessStartInfo { FileName = path, UseShellExecute = true });
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Error("UCReports", "Ошибка ИИ-отчёта", ex);
+                ToastNotification.ShowError("Ошибка ИИ-отчёта: " + ex.Message);
+            }
+            finally
+            {
+                _btnAi.Enabled = true;
+                _btnAi.Text = "🤖 Сформировать ИИ";
+            }
+        }
+
+        private async Task LoadAsync()
+        {
+            try
+            {
+                _btnBuild.Enabled = false;
+                var token = Settings.Default.stringToken;
+                if (string.IsNullOrWhiteSpace(token))
+                {
+                    ToastNotification.ShowError("Не найден токен авторизации. Войдите в систему.");
+                    return;
+                }
+
+                var client = new ApiClient();
+                client.SetToken(token);
+                _lines = await client.GetBuyerReportAsync(_dtFrom.Value.Date, _dtTo.Value.Date)
+                         ?? new List<BuyerReportLineDto>();
+                Render();
+
+                if (_lines.Count == 0)
+                {
+                    ToastNotification.ShowCustom("За выбранный период заказов нет.", Color.DarkOrange, Color.White);
+                }
+            }
+            catch (Exception ex)
+            {
+                AppDebugLog.Error("UCReports", "Ошибка формирования отчёта", ex);
+                ToastNotification.ShowError("Ошибка отчёта: " + ex.Message);
+            }
+            finally
+            {
+                _btnBuild.Enabled = true;
+            }
+        }
+
+        private void Render()
+        {
+            var dt = new DataTable();
+
+            switch (_cboReport.SelectedIndex)
+            {
+                case 0: // Мои заказы (по заказу)
+                    dt.Columns.Add("Дата", typeof(string));
+                    dt.Columns.Add("Номер", typeof(string));
+                    dt.Columns.Add("Поставщик", typeof(string));
+                    dt.Columns.Add("Аптека", typeof(string));
+                    dt.Columns.Add("Позиций", typeof(int));
+                    dt.Columns.Add("Сумма", typeof(decimal));
+                    dt.Columns.Add("Статус", typeof(string));
+                    foreach (var g in _lines.GroupBy(l => l.OrderID)
+                                            .OrderByDescending(x => x.First().OrderDate ?? DateTime.MinValue))
+                    {
+                        var f = g.First();
+                        var suppliers = string.Join(", ", g.Select(x => x.Supplier)
+                            .Where(s => !string.IsNullOrWhiteSpace(s)).Distinct());
+                        dt.Rows.Add(
+                            f.OrderDate?.ToLocalTime().ToString("dd.MM.yyyy") ?? "",
+                            f.GlobalSign,
+                            suppliers,
+                            f.Location,
+                            g.Count(),
+                            g.Sum(x => x.Sum),
+                            f.Status);
+                    }
+                    break;
+
+                case 1: // По поставщикам
+                    dt.Columns.Add("Поставщик", typeof(string));
+                    dt.Columns.Add("Заказов", typeof(int));
+                    dt.Columns.Add("Позиций", typeof(int));
+                    dt.Columns.Add("Сумма", typeof(decimal));
+                    foreach (var g in _lines.GroupBy(l => string.IsNullOrWhiteSpace(l.Supplier) ? "(не указан)" : l.Supplier)
+                                            .OrderByDescending(x => x.Sum(y => y.Sum)))
+                    {
+                        dt.Rows.Add(g.Key, g.Select(x => x.OrderID).Distinct().Count(), g.Count(), g.Sum(x => x.Sum));
+                    }
+                    break;
+
+                case 2: // По товарам
+                    dt.Columns.Add("Товар", typeof(string));
+                    dt.Columns.Add("Код", typeof(string));
+                    dt.Columns.Add("Кол-во", typeof(decimal));
+                    dt.Columns.Add("Сумма", typeof(decimal));
+                    foreach (var g in _lines.GroupBy(l => ((l.ItemName ?? "").Trim() + "|" + (l.ItemCode ?? "")))
+                                            .OrderByDescending(x => x.Sum(y => y.Sum)))
+                    {
+                        var f = g.First();
+                        dt.Rows.Add(f.ItemName, f.ItemCode, g.Sum(x => x.Qty), g.Sum(x => x.Sum));
+                    }
+                    break;
+
+                case 3: // По аптекам (грузополучателям)
+                    dt.Columns.Add("Аптека", typeof(string));
+                    dt.Columns.Add("Заказов", typeof(int));
+                    dt.Columns.Add("Позиций", typeof(int));
+                    dt.Columns.Add("Сумма", typeof(decimal));
+                    foreach (var g in _lines.GroupBy(l => string.IsNullOrWhiteSpace(l.Location) ? "(не указана)" : l.Location)
+                                            .OrderByDescending(x => x.Sum(y => y.Sum)))
+                    {
+                        dt.Rows.Add(g.Key, g.Select(x => x.OrderID).Distinct().Count(), g.Count(), g.Sum(x => x.Sum));
+                    }
+                    break;
+            }
+
+            _grid.DataSource = dt;
+            foreach (DataGridViewColumn c in _grid.Columns)
+            {
+                bool numeric = c.Name == "Сумма" || c.Name == "Кол-во" || c.Name == "Позиций" || c.Name == "Заказов";
+                if (c.Name == "Сумма") c.DefaultCellStyle.Format = "N2";
+                if (c.Name == "Кол-во") c.DefaultCellStyle.Format = "N3";
+                if (numeric)
+                {
+                    c.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
+                    c.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleRight;
+                    c.HeaderCell.Style.Padding = new Padding(0, 0, 6, 0);
+                }
+                // Узкие числовые колонки, широкие — текстовые (Fill распределит по весу).
+                if (c.Name == "Позиций" || c.Name == "Заказов") c.FillWeight = 45;
+                else if (c.Name == "Сумма" || c.Name == "Кол-во") c.FillWeight = 70;
+                else if (c.Name == "Дата" || c.Name == "Статус" || c.Name == "Код") c.FillWeight = 75;
+                else if (c.Name == "Номер") c.FillWeight = 90;
+                else c.FillWeight = 150; // Поставщик / Товар / Аптека
+            }
+
+            int orders = _lines.Select(l => l.OrderID).Distinct().Count();
+            decimal totalSum = _lines.Sum(l => l.Sum);
+            _lblTotals.Text = $"Заказов: {orders}    Позиций: {_lines.Count}    Сумма: {totalSum:N2}";
+        }
+    }
+}

src/Elfisa.Avalonia/App.axaml

@@ -0,0 +1,52 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="Elfisa.Avalonia.App"
+             xmlns:local="using:Elfisa.Avalonia"
+             RequestedThemeVariant="Light">
+
+    <Application.DataTemplates>
+        <local:ViewLocator/>
+    </Application.DataTemplates>
+
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.ThemeDictionaries>
+                <ResourceDictionary x:Key="Light">
+                    <SolidColorBrush x:Key="Bg" Color="#EDF2F2"/>
+                    <SolidColorBrush x:Key="Surface" Color="#FFFFFF"/>
+                    <SolidColorBrush x:Key="Text" Color="#1F2933"/>
+                    <SolidColorBrush x:Key="Muted" Color="#6B7785"/>
+                    <SolidColorBrush x:Key="Border" Color="#E1E7E8"/>
+                    <SolidColorBrush x:Key="RowAlt" Color="#F5F9F9"/>
+                    <SolidColorBrush x:Key="InputBg" Color="#FFFFFF"/>
+                </ResourceDictionary>
+                <ResourceDictionary x:Key="Dark">
+                    <SolidColorBrush x:Key="Bg" Color="#0E1416"/>
+                    <SolidColorBrush x:Key="Surface" Color="#182226"/>
+                    <SolidColorBrush x:Key="Text" Color="#E7EDEE"/>
+                    <SolidColorBrush x:Key="Muted" Color="#8FA0A5"/>
+                    <SolidColorBrush x:Key="Border" Color="#28353A"/>
+                    <SolidColorBrush x:Key="RowAlt" Color="#141D20"/>
+                    <SolidColorBrush x:Key="InputBg" Color="#0F1719"/>
+                </ResourceDictionary>
+            </ResourceDictionary.ThemeDictionaries>
+
+            <!-- Акцент бренда (#0F766E — бирюза шапки), постоянен в обеих темах -->
+            <Color x:Key="AccentColor">#0F766E</Color>
+            <SolidColorBrush x:Key="Accent" Color="#0F766E"/>
+            <SolidColorBrush x:Key="AccentHover" Color="#0D9488"/>
+            <SolidColorBrush x:Key="AccentPressed" Color="#115E59"/>
+            <SolidColorBrush x:Key="AccentSoft" Color="#CCFBF1"/>
+            <SolidColorBrush x:Key="Sidebar" Color="#0E5F58"/>
+            <SolidColorBrush x:Key="SidebarActive" Color="#0A4A44"/>
+            <SolidColorBrush x:Key="SidebarText" Color="#D5F5F0"/>
+            <SolidColorBrush x:Key="OnAccent" Color="#FFFFFF"/>
+        </ResourceDictionary>
+    </Application.Resources>
+
+    <Application.Styles>
+        <FluentTheme />
+        <StyleInclude Source="avares://Avalonia.Controls.DataGrid/Themes/Fluent.xaml"/>
+        <StyleInclude Source="/Styles/Elfisa.axaml"/>
+    </Application.Styles>
+</Application>

src/Elfisa.Avalonia/App.axaml.cs

@@ -0,0 +1,35 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Data.Core;
+using Avalonia.Data.Core.Plugins;
+using System.Linq;
+using Avalonia.Markup.Xaml;
+using Elfisa.Avalonia.ViewModels;
+using Elfisa.Avalonia.Views;
+
+namespace Elfisa.Avalonia;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        RequestedThemeVariant = Elfisa.Core.SettingsStore.Current.Theme == "Dark"
+            ? global::Avalonia.Styling.ThemeVariant.Dark
+            : global::Avalonia.Styling.ThemeVariant.Light;
+
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.MainWindow = new MainWindow
+            {
+                DataContext = new RootViewModel(),
+            };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}

src/Elfisa.Avalonia/Elfisa.Avalonia.csproj

@@ -0,0 +1,38 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    <Version>2.0.1</Version>
+    <AssemblyVersion>2.0.1.0</AssemblyVersion>
+    <FileVersion>2.0.1.0</FileVersion>
+    <Product>ЭльФиСА — Электронная Фармация</Product>
+    <Company>PharmData</Company>
+    <!-- Кросс-платформенная публикация задаётся флагами CLI (RID + self-contained). -->
+    <SatelliteResourceLanguages>ru;en</SatelliteResourceLanguages>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Models\" />
+    <AvaloniaResource Include="Assets\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="12.1.0" />
+    <PackageReference Include="Avalonia.Controls.DataGrid" Version="12.1.0" />
+    <PackageReference Include="Avalonia.Desktop" Version="12.1.0" />
+    <PackageReference Include="Avalonia.Themes.Fluent" Version="12.1.0" />
+    <PackageReference Include="Avalonia.Fonts.Inter" Version="12.1.0" />
+    <PackageReference Include="AvaloniaUI.DiagnosticsSupport" Version="2.2.1">
+      <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
+      <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Elfisa.Core\Elfisa.Core.csproj" />
+  </ItemGroup>
+</Project>

src/Elfisa.Avalonia/Program.cs

@@ -0,0 +1,24 @@
+using Avalonia;
+using System;
+
+namespace Elfisa.Avalonia;
+
+sealed class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+#if DEBUG
+            .WithDeveloperTools()
+#endif
+            .WithInterFont()
+            .LogToTrace();
+}

src/Elfisa.Avalonia/README.md

@@ -0,0 +1,73 @@
+# ЭльФиСА — кросс-платформенный клиент (Avalonia)
+
+Порт десктопного клиента с WinForms на **Avalonia UI** (.NET 8) —
+работает на **Windows, macOS и Linux** из одного кода. Начат как замена
+WinForms-версии (которая только под Windows).
+
+## Что уже готово (фундамент + эталонный экран)
+- **Elfisa.Core** — переносимая бизнес-логика (без UI): `ApiClient`
+  (логин, отчёт покупателя, ИИ-отчёт), DTO, `AppConfig`, `Session`.
+- **Дизайн-система** в фирменной бирюзе (#0F766E): светлая/тёмная тема,
+  стили кнопок, полей, карточек, таблицы, сайдбара (`Styles/Elfisa.axaml`).
+- **Экран входа** (`LoginView`) — реальная авторизация через `/auth/login`.
+- **Шелл** (`ShellView`) — сайдбар-навигация + карточка пользователя + выход.
+- **Отчёты** (`ReportsView`) — ПОЛНОСТЬЮ рабочий эталонный раздел:
+  период, 4 типа отчёта (агрегация как в WinForms), авто-загрузка,
+  свободный **ИИ-запрос → Word/Excel** (через `/ai`), таблица с динамическими
+  колонками. Данные скоупятся по JWT — только заказы этого покупателя.
+- Заглушки остальных разделов (Прайс-лист, Заказы, Накладные, Отправить,
+  Отказы, Справочник).
+
+## Архитектура
+MVVM (CommunityToolkit.Mvvm) + ViewLocator (VM → View по имени).
+```
+Program → App → MainWindow(RootViewModel)
+  RootViewModel: LoginViewModel  ⇄  ShellViewModel
+  ShellViewModel.CurrentPage: ReportsViewModel | PlaceholderPageViewModel | …
+```
+Вся сетевая логика — в `Elfisa.Core` (переиспользуется и десктопом, и
+будущим мобильным/веб-клиентом Avalonia).
+
+## Запуск
+```bash
+dotnet run --project src/Elfisa.Avalonia
+```
+Dev-автологин (удобно при разработке — минуя экран входа):
+```bash
+# Windows PowerShell
+$env:ELF_DEV_USER="user@example.com"; $env:ELF_DEV_PASS="***"; dotnet run --project src/Elfisa.Avalonia
+```
+Переопределение адресов (по умолчанию https://24pharmdata.ru и .../ai):
+`ELF_API_BASE_URL`, `ELF_AI_BASE_URL`.
+
+Сборка под конкретную ОС:
+```bash
+dotnet publish src/Elfisa.Avalonia -c Release -r osx-arm64 --self-contained   # Mac (M-серия)
+dotnet publish src/Elfisa.Avalonia -c Release -r win-x64  --self-contained    # Windows
+```
+
+## Дорожная карта портирования
+Логика этих экранов частично уже есть в WinForms `ApiClient` — переносится
+в `Elfisa.Core` метод за методом, UI пишется по образцу `ReportsView`.
+
+| Раздел | Что нужно | Сложность |
+|---|---|---|
+| ✅ Прайс-лист | поиск + грид (/api/supplier-prices/summary) | готово (без добавления в заказ) |
+| ✅ Заказы | список + карточка заказа с позициями | готово |
+| ✅ Накладные | реестр приходных документов | готово |
+| ✅ Отчёты | 4 типа + ИИ → Word/Excel | готово |
+| ✅ Справочник | профиль + грузополучатели | готово |
+| ✅ Отправить | поиск → корзина → создание заказа (POST /api/buyer/orders) | готов UI; реальная отправка не тестировалась (создаёт заказ на проде) |
+| ⏳ Отказы | список отказных позиций | нужен серверный эндпоинт (RefuseItemsCount есть только в локальной БД WinForms) |
+| ⏳ Автообновление | аналог AutoUpdater под каждую ОС | не начато |
+
+**Прайс-лист/Заказы/Накладные** строятся на рабочих эндпоинтах
+(`supplier-prices/summary`, `buyer/report`). «Родные» `buyer/orders` и
+`buyer/catalog` возвращают 500 (баг квотинга PascalCase в GORM-билдере).
+Фикс для **buyer/orders** готов и застейджен (`es_api_service.exe.new`,
+apply-new-exe.bat) — после деплоя Заказы/Накладные перейдут на него.
+Каталог не используется (берём рабочий summary), его фикс — по желанию.
+
+Осталось: **Отправить** (корзина + создание заказа + DBF) и **Отказы**,
+плюс автообновление и сохранение сессии. Логика переносится из WinForms,
+переписывается только UI (XAML).

src/Elfisa.Avalonia/Styles/Elfisa.axaml

@@ -0,0 +1,193 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+
+    <!-- ============ Типографика ============ -->
+    <Style Selector="TextBlock.h1">
+        <Setter Property="FontSize" Value="22"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+        <Setter Property="Foreground" Value="{DynamicResource Text}"/>
+    </Style>
+    <Style Selector="TextBlock.h2">
+        <Setter Property="FontSize" Value="16"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+        <Setter Property="Foreground" Value="{DynamicResource Text}"/>
+    </Style>
+    <Style Selector="TextBlock.muted">
+        <Setter Property="Foreground" Value="{DynamicResource Muted}"/>
+        <Setter Property="FontSize" Value="12.5"/>
+    </Style>
+    <Style Selector="TextBlock.label">
+        <Setter Property="Foreground" Value="{DynamicResource Text}"/>
+        <Setter Property="FontSize" Value="13"/>
+        <Setter Property="VerticalAlignment" Value="Center"/>
+    </Style>
+
+    <!-- ============ Карточка ============ -->
+    <Style Selector="Border.card">
+        <Setter Property="Background" Value="{DynamicResource Surface}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource Border}"/>
+        <Setter Property="BorderThickness" Value="1"/>
+        <Setter Property="CornerRadius" Value="12"/>
+        <Setter Property="Padding" Value="18"/>
+        <Setter Property="BoxShadow" Value="0 2 14 0 #12000000"/>
+    </Style>
+
+    <!-- ============ Кнопки ============ -->
+    <Style Selector="Button.primary">
+        <Setter Property="Background" Value="{DynamicResource Accent}"/>
+        <Setter Property="Foreground" Value="{DynamicResource OnAccent}"/>
+        <Setter Property="Padding" Value="18,10"/>
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+        <Setter Property="FontSize" Value="13.5"/>
+        <Setter Property="Cursor" Value="Hand"/>
+        <Setter Property="HorizontalContentAlignment" Value="Center"/>
+    </Style>
+    <Style Selector="Button.primary:pointerover /template/ ContentPresenter#PART_ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource AccentHover}"/>
+        <Setter Property="TextBlock.Foreground" Value="{DynamicResource OnAccent}"/>
+    </Style>
+    <Style Selector="Button.primary:pressed /template/ ContentPresenter#PART_ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource AccentPressed}"/>
+    </Style>
+    <Style Selector="Button.primary:disabled /template/ ContentPresenter#PART_ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource Muted}"/>
+    </Style>
+
+    <Style Selector="Button.ghost">
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="Foreground" Value="{DynamicResource Accent}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource Accent}"/>
+        <Setter Property="BorderThickness" Value="1"/>
+        <Setter Property="Padding" Value="16,9"/>
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+        <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="Button.ghost:pointerover /template/ ContentPresenter#PART_ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource AccentSoft}"/>
+    </Style>
+
+    <!-- ============ Поля ввода ============ -->
+    <Style Selector="TextBox">
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="Padding" Value="10,8"/>
+        <Setter Property="Background" Value="{DynamicResource InputBg}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource Border}"/>
+        <Setter Property="MinHeight" Value="38"/>
+    </Style>
+    <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
+        <Setter Property="BorderBrush" Value="{DynamicResource Accent}"/>
+    </Style>
+    <Style Selector="ComboBox">
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="MinHeight" Value="38"/>
+        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Background" Value="{DynamicResource InputBg}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource Border}"/>
+    </Style>
+    <Style Selector="DatePicker">
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="MinHeight" Value="38"/>
+    </Style>
+
+    <!-- ============ Сайдбар-навигация ============ -->
+    <Style Selector="ListBox.nav">
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="Padding" Value="0"/>
+    </Style>
+    <Style Selector="ListBox.nav ListBoxItem">
+        <Setter Property="Foreground" Value="{DynamicResource SidebarText}"/>
+        <Setter Property="Padding" Value="14,11"/>
+        <Setter Property="Margin" Value="10,2"/>
+        <Setter Property="CornerRadius" Value="9"/>
+        <Setter Property="FontSize" Value="14"/>
+        <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="ListBox.nav ListBoxItem:pointerover /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource SidebarActive}"/>
+    </Style>
+    <Style Selector="ListBox.nav ListBoxItem:selected /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource SidebarActive}"/>
+    </Style>
+    <Style Selector="ListBox.nav ListBoxItem:selected">
+        <Setter Property="Foreground" Value="White"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+    </Style>
+
+    <!-- ============ Верхняя навигация (как в WinForms-версии) ============ -->
+    <Style Selector="ListBox.topnav">
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="Padding" Value="0"/>
+    </Style>
+    <Style Selector="ListBox.topnav ListBoxItem">
+        <Setter Property="Padding" Value="6,7"/>
+        <Setter Property="Margin" Value="2,0"/>
+        <Setter Property="CornerRadius" Value="10"/>
+        <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="ListBox.topnav ListBoxItem:pointerover /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource SidebarActive}"/>
+    </Style>
+    <Style Selector="ListBox.topnav ListBoxItem:selected /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource SidebarActive}"/>
+    </Style>
+
+    <!-- ============ Вкладки-документы ============ -->
+    <Style Selector="ListBox.tabs">
+        <Setter Property="Background" Value="Transparent"/>
+        <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="Padding" Value="0"/>
+    </Style>
+    <Style Selector="ListBox.tabs ListBoxItem">
+        <Setter Property="Padding" Value="12,6"/>
+        <Setter Property="Margin" Value="3,6"/>
+        <Setter Property="CornerRadius" Value="8"/>
+        <Setter Property="Foreground" Value="{DynamicResource Muted}"/>
+        <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="ListBox.tabs ListBoxItem:pointerover /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource RowAlt}"/>
+    </Style>
+    <Style Selector="ListBox.tabs ListBoxItem:selected /template/ ContentPresenter">
+        <Setter Property="Background" Value="{DynamicResource AccentSoft}"/>
+    </Style>
+    <Style Selector="ListBox.tabs ListBoxItem:selected">
+        <Setter Property="Foreground" Value="{DynamicResource AccentPressed}"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+    </Style>
+
+    <!-- ============ Таблица ============ -->
+    <Style Selector="DataGrid">
+        <Setter Property="Background" Value="{DynamicResource Surface}"/>
+        <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="GridLinesVisibility" Value="Horizontal"/>
+        <Setter Property="HorizontalGridLinesBrush" Value="{DynamicResource Border}"/>
+        <Setter Property="RowBackground" Value="{DynamicResource Surface}"/>
+        <Setter Property="Foreground" Value="{DynamicResource Text}"/>
+        <Setter Property="RowHeight" Value="34"/>
+        <Setter Property="FontSize" Value="13"/>
+    </Style>
+    <Style Selector="DataGridColumnHeader">
+        <Setter Property="Background" Value="{DynamicResource Accent}"/>
+        <Setter Property="Foreground" Value="{DynamicResource OnAccent}"/>
+        <Setter Property="FontWeight" Value="SemiBold"/>
+        <Setter Property="FontSize" Value="13"/>
+        <Setter Property="Padding" Value="10,8"/>
+        <Setter Property="MinHeight" Value="36"/>
+        <Setter Property="SeparatorBrush" Value="#2FFFFFFF"/>
+    </Style>
+    <Style Selector="DataGridCell">
+        <Setter Property="Padding" Value="10,0"/>
+    </Style>
+    <!-- числовые ячейки — вправо -->
+    <Style Selector="DataGridCell.num TextBlock">
+        <Setter Property="TextAlignment" Value="Right"/>
+    </Style>
+    <Style Selector="DataGridRow:selected /template/ Rectangle#BackgroundRectangle">
+        <Setter Property="Fill" Value="{DynamicResource AccentSoft}"/>
+        <Setter Property="Opacity" Value="1"/>
+    </Style>
+</Styles>

src/Elfisa.Avalonia/ViewLocator.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using Elfisa.Avalonia.ViewModels;
+
+namespace Elfisa.Avalonia;
+
+/// <summary>
+/// Given a view model, returns the corresponding view if possible.
+/// </summary>
+[RequiresUnreferencedCode(
+    "Default implementation of ViewLocator involves reflection which may be trimmed away.",
+    Url = "https://docs.avaloniaui.net/docs/concepts/view-locator")]
+public class ViewLocator : IDataTemplate
+{
+    public Control? Build(object? param)
+    {
+        if (param is null)
+            return null;
+        
+        var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
+        var type = Type.GetType(name);
+
+        if (type != null)
+        {
+            return (Control)Activator.CreateInstance(type)!;
+        }
+        
+        return new TextBlock { Text = "Not Found: " + name };
+    }
+
+    public bool Match(object? data)
+    {
+        return data is ViewModelBase;
+    }
+}

src/Elfisa.Avalonia/ViewModels/CartService.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public partial class CartItem : ObservableObject
+{
+    public PriceItem Source { get; }
+    public string Name => Source.DrugName ?? "";
+    public string Supplier => Source.SupplierName ?? "";
+    public decimal Price => Source.Price;
+
+    [ObservableProperty] private decimal _qty = 1;
+    public decimal LineSum => Price * Qty;
+
+    public event Action? Changed;
+
+    public CartItem(PriceItem src) => Source = src;
+
+    partial void OnQtyChanged(decimal value)
+    {
+        OnPropertyChanged(nameof(LineSum));
+        Changed?.Invoke();
+    }
+}
+
+/// <summary>Единая корзина заказа — общая для «Прайс-листа» и «Отправить».</summary>
+public sealed class CartService
+{
+    public static CartService Instance { get; } = new();
+
+    public ObservableCollection<CartItem> Items { get; } = new();
+    public event Action? Changed;
+
+    public decimal Total => Items.Sum(c => c.LineSum);
+    public int Count => Items.Count;
+
+    public void Add(PriceItem src, decimal qty = 1)
+    {
+        if (src is null || string.IsNullOrEmpty(src.SupplierPriceId)) return;
+        var existing = Items.FirstOrDefault(c => c.Source.SupplierPriceId == src.SupplierPriceId);
+        if (existing != null) existing.Qty += qty;
+        else
+        {
+            var ci = new CartItem(src) { Qty = qty };
+            ci.Changed += Raise;
+            Items.Add(ci);
+        }
+        Raise();
+    }
+
+    public void Remove(CartItem item)
+    {
+        if (item is null) return;
+        item.Changed -= Raise;
+        Items.Remove(item);
+        Raise();
+    }
+
+    public void Clear()
+    {
+        foreach (var i in Items) i.Changed -= Raise;
+        Items.Clear();
+        Raise();
+    }
+
+    private void Raise() => Changed?.Invoke();
+}

src/Elfisa.Avalonia/ViewModels/DirectoryViewModel.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>Справочник покупателя: профиль + грузополучатели (адреса).</summary>
+public partial class DirectoryViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+
+    public string UserName => Session.Current.Username ?? "";
+    public string RoleLabel => Session.Current.Role switch
+    {
+        "buyer" => "Покупатель",
+        "supplier" => "Поставщик",
+        "manager" => "Менеджер",
+        "admin" => "Администратор",
+        _ => Session.Current.Role ?? ""
+    };
+
+    public ObservableCollection<BuyerLocationDto> Locations { get; } = new();
+
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string? _status;
+
+    public DirectoryViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        if (Session.Current.IsAuthenticated) _ = LoadAsync();
+    }
+
+    private async Task LoadAsync()
+    {
+        try
+        {
+            Busy = true;
+            var locs = await _api.GetBuyerLocationsAsync();
+            Locations.Clear();
+            foreach (var l in locs) Locations.Add(l);
+            if (Locations.Count == 0) Status = "Грузополучатели не заданы.";
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/InvoicesViewModel.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public sealed class InvoiceRow
+{
+    public string Date { get; init; } = "";
+    public string Number { get; init; } = "";
+    public string Supplier { get; init; } = "";
+    public string Location { get; init; } = "";
+    public int ItemsCount { get; init; }
+    public decimal Sum { get; init; }
+}
+
+/// <summary>
+/// Накладные — реестр приходных документов. Строится из /api/buyer/report
+/// (после деплоя фикса /api/buyer/orders можно перейти на «родной» источник).
+/// </summary>
+public partial class InvoicesViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+
+    public ObservableCollection<InvoiceRow> Rows { get; } = new();
+
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string? _status;
+    [ObservableProperty] private string _totals = "";
+
+    public InvoicesViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        if (Session.Current.IsAuthenticated) _ = LoadAsync();
+    }
+
+    private async Task LoadAsync()
+    {
+        try
+        {
+            Busy = true;
+            var to = DateTime.Today;
+            var from = to.AddMonths(-24);
+            var lines = await _api.GetBuyerReportAsync(from, to);
+
+            Rows.Clear();
+            foreach (var g in lines.GroupBy(l => l.OrderId)
+                         .OrderByDescending(x => x.First().OrderDate ?? DateTime.MinValue))
+            {
+                var f = g.First();
+                Rows.Add(new InvoiceRow
+                {
+                    Date = f.OrderDate?.ToLocalTime().ToString("dd.MM.yyyy") ?? "",
+                    Number = f.GlobalSign ?? "",
+                    Supplier = string.Join(", ", g.Select(x => x.Supplier)
+                        .Where(s => !string.IsNullOrWhiteSpace(s)).Distinct()),
+                    Location = f.Location ?? "",
+                    ItemsCount = g.Count(),
+                    Sum = g.Sum(x => x.Sum)
+                });
+            }
+
+            Totals = $"Накладных: {Rows.Count}    Сумма: {Rows.Sum(r => r.Sum):N2}";
+            if (Rows.Count == 0) Status = "Накладных за последние 2 года нет.";
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/LoadPriceViewModel.cs

@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>«Загрузить» — скачивание подключённых прайсов с сервера в память.</summary>
+public partial class LoadPriceViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+
+    /// <summary>Прайсы, подключённые покупателю (какие именно скачиваем).</summary>
+    public ObservableCollection<BuyerPriceListDto> PriceLists { get; } = new();
+
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private double _progress;      // 0..100
+    [ObservableProperty] private string _progressText = "";
+    [ObservableProperty] private string? _result;
+    [ObservableProperty] private string _priceListsInfo = "Загрузка списка прайсов…";
+
+    public string LastLoaded =>
+        PriceCache.LoadedAt is { } dt
+            ? $"Последняя загрузка: {dt:dd.MM.yyyy HH:mm} — {PriceCache.Items.Count} позиций"
+            : "Прайс ещё не загружался в этой сессии.";
+
+    public LoadPriceViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        if (Session.Current.IsAuthenticated)
+            _ = LoadPriceListsAsync();
+    }
+
+    /// <summary>Тянет список подключённых прайсов — чтобы было видно, что именно скачиваем.</summary>
+    private async Task LoadPriceListsAsync()
+    {
+        try
+        {
+            var lists = await _api.GetBuyerPriceListsAsync();
+            PriceLists.Clear();
+            foreach (var pl in lists) PriceLists.Add(pl);
+            PriceListsInfo = lists.Count == 0
+                ? "Прайсы пока не подключены — обратитесь к менеджеру."
+                : $"Подключено прайсов: {lists.Count}";
+        }
+        catch { PriceListsInfo = "Не удалось получить список подключённых прайсов."; }
+    }
+
+    [RelayCommand]
+    private async Task LoadAsync()
+    {
+        Result = null;
+        try
+        {
+            Busy = true;
+            Progress = 0;
+            ProgressText = "Соединение с сервером…";
+
+            var all = new List<PriceItem>();
+            const int page = 500;
+            int offset = 0, total = 0;
+
+            while (true)
+            {
+                var resp = await _api.GetPriceSummaryAsync(null, limit: page, offset: offset);
+                var batch = resp.Summary ?? new();
+                if (resp.TotalDrugs > 0) total = resp.TotalDrugs;
+                all.AddRange(batch);
+
+                Progress = total > 0 ? Math.Min(100.0, all.Count * 100.0 / total) : 0;
+                ProgressText = total > 0
+                    ? $"Загружено {all.Count} из {total} позиций…"
+                    : $"Загружено {all.Count} позиций…";
+
+                offset += batch.Count;
+                if (batch.Count < page || (total > 0 && all.Count >= total) || offset > 30000)
+                    break;
+            }
+
+            PriceCache.Items = all;
+            PriceCache.LoadedAt = DateTime.Now;
+            Progress = 100;
+            ProgressText = "Готово.";
+
+            var suppliers = all.Select(x => x.SupplierName).Where(s => !string.IsNullOrWhiteSpace(s)).Distinct().Count();
+            Result = $"Прайс загружен: {all.Count} позиций от {suppliers} поставщик(ов).";
+            OnPropertyChanged(nameof(LastLoaded));
+        }
+        catch (Exception ex)
+        {
+            Result = "Ошибка загрузки: " + ex.Message;
+            ProgressText = "";
+        }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/LoginViewModel.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public partial class LoginViewModel : ViewModelBase
+{
+    private readonly Action _onSuccess;
+    private readonly ApiClient _api = new();
+
+    [ObservableProperty] private string _username = "";
+    [ObservableProperty] private string _password = "";
+    [ObservableProperty] private string? _error;
+    [ObservableProperty] private bool _busy;
+
+    public LoginViewModel(Action onSuccess) => _onSuccess = onSuccess;
+
+    [RelayCommand]
+    private async Task LoginAsync()
+    {
+        Error = null;
+        if (string.IsNullOrWhiteSpace(Username) || string.IsNullOrWhiteSpace(Password))
+        {
+            Error = "Введите логин и пароль.";
+            return;
+        }
+
+        try
+        {
+            Busy = true;
+            var resp = await _api.LoginAsync(Username.Trim(), Password);
+            Session.Current.Token = resp.Token;
+            Session.Current.Role = resp.Role;
+            Session.Current.Username = Username.Trim();
+            _onSuccess();
+        }
+        catch (ApiException ex) { Error = ex.Message; }
+        catch (Exception ex) { Error = "Не удалось войти: " + ex.Message; }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/OrdersViewModel.cs

@@ -0,0 +1,165 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public sealed class OrderItemRow
+{
+    public string Name { get; init; } = "";
+    public string Code { get; init; } = "";
+    public decimal Qty { get; init; }
+    public decimal Price { get; init; }
+    public decimal Sum { get; init; }
+    public string? SupplierPriceId { get; init; }
+    public string? Barcode { get; init; }
+}
+
+public sealed class OrderSummary
+{
+    public string Date { get; init; } = "";
+    public string Number { get; init; } = "";
+    public string Supplier { get; init; } = "";
+    public string Location { get; init; } = "";
+    public string Status { get; init; } = "";
+    public int ItemsCount { get; init; }
+    public decimal Sum { get; init; }
+    public ObservableCollection<OrderItemRow> Items { get; init; } = new();
+
+    public bool IsDraft { get; init; }
+    public string? DraftId { get; init; }
+    public string? LocationId { get; init; }
+    public string? Comment { get; init; }
+}
+
+/// <summary>
+/// Заказы: локальные черновики (статус «Не отправлен») + серверные заказы (из /api/buyer/report).
+/// Черновик можно отправить (создать реальный заказ) или удалить.
+/// </summary>
+public partial class OrdersViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+
+    public ObservableCollection<OrderSummary> Orders { get; } = new();
+
+    [ObservableProperty] private OrderSummary? _selectedOrder;
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string? _status;
+
+    public OrdersViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        if (Session.Current.IsAuthenticated) _ = LoadAsync();
+    }
+
+    [RelayCommand]
+    private async Task LoadAsync()
+    {
+        Status = null;
+        try
+        {
+            Busy = true;
+            Orders.Clear();
+
+            // 1) Локальные черновики — вверху, статус «Не отправлен»
+            foreach (var d in DraftStore.All)
+            {
+                var items = new ObservableCollection<OrderItemRow>(
+                    d.Items.Select(i => new OrderItemRow
+                    {
+                        Name = i.Name, Qty = i.Qty, Price = i.Price, Sum = i.LineSum,
+                        SupplierPriceId = i.SupplierPriceId, Barcode = i.Barcode
+                    }));
+                Orders.Add(new OrderSummary
+                {
+                    Date = d.CreatedAt.ToString("dd.MM.yyyy"),
+                    Number = d.Number,
+                    Supplier = string.Join(", ", d.Items.Select(i => i.Supplier).Where(s => !string.IsNullOrWhiteSpace(s)).Distinct()),
+                    Location = d.LocationAddress ?? "",
+                    Status = "Не отправлен",
+                    ItemsCount = d.ItemsCount,
+                    Sum = d.Total,
+                    Items = items,
+                    IsDraft = true,
+                    DraftId = d.Id,
+                    LocationId = d.LocationId,
+                    Comment = d.Comment
+                });
+            }
+
+            // 2) Серверные заказы
+            var to = DateTime.Today;
+            var from = to.AddMonths(-24);
+            var lines = await _api.GetBuyerReportAsync(from, to);
+            foreach (var g in lines.GroupBy(l => l.OrderId)
+                         .OrderByDescending(x => x.First().OrderDate ?? DateTime.MinValue))
+            {
+                var f = g.First();
+                var items = new ObservableCollection<OrderItemRow>(
+                    g.Select(l => new OrderItemRow
+                    {
+                        Name = l.ItemName ?? "", Code = l.ItemCode ?? "",
+                        Qty = l.Qty, Price = l.UnitPrice, Sum = l.Sum
+                    }));
+                Orders.Add(new OrderSummary
+                {
+                    Date = f.OrderDate?.ToLocalTime().ToString("dd.MM.yyyy") ?? "",
+                    Number = f.GlobalSign ?? "",
+                    Supplier = string.Join(", ", g.Select(x => x.Supplier).Where(s => !string.IsNullOrWhiteSpace(s)).Distinct()),
+                    Location = f.Location ?? "",
+                    Status = f.Status ?? "",
+                    ItemsCount = g.Count(),
+                    Sum = g.Sum(x => x.Sum),
+                    Items = items
+                });
+            }
+
+            SelectedOrder = Orders.FirstOrDefault();
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+
+    [RelayCommand]
+    private async Task SendDraftAsync()
+    {
+        if (SelectedOrder is not { IsDraft: true } d) return;
+        Status = null;
+        try
+        {
+            Busy = true;
+            var req = new BuyerOrderCreateRequest
+            {
+                GlobalSign = d.Number.StartsWith("EX-", StringComparison.OrdinalIgnoreCase) ? d.Number : null,
+                LocationId = d.LocationId,
+                Comment = d.Comment,
+                Items = d.Items.Select(i => new BuyerOrderItemReq
+                {
+                    SupplierPriceId = i.SupplierPriceId ?? "",
+                    Qty = (double)i.Qty,
+                    ItemName = i.Name,
+                    Barcode = i.Barcode
+                }).ToList()
+            };
+            var resp = await _api.CreateOrderAsync(req);
+            if (d.DraftId is { } id) DraftStore.Remove(id);
+            Status = $"✓ Заказ {resp.GlobalSign ?? resp.OrderId} отправлен ({resp.ItemsCount} поз., {resp.TotalAmount:N2}).";
+            await LoadAsync();
+        }
+        catch (Exception ex) { Status = "Ошибка отправки: " + ex.Message; }
+        finally { Busy = false; }
+    }
+
+    [RelayCommand]
+    private async Task DeleteDraftAsync()
+    {
+        if (SelectedOrder is not { IsDraft: true } d || d.DraftId is not { } id) return;
+        DraftStore.Remove(id);
+        await LoadAsync();
+        Status = "Черновик удалён.";
+    }
+}

src/Elfisa.Avalonia/ViewModels/PlaceholderPageViewModel.cs

@@ -0,0 +1,15 @@
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>Заглушка ещё не портированного раздела.</summary>
+public partial class PlaceholderPageViewModel : ViewModelBase
+{
+    public string Title { get; }
+    public string Description { get; }
+    public string Note { get; } = "Раздел портируется на Avalonia. Пока доступен в WinForms-клиенте.";
+
+    public PlaceholderPageViewModel(string title, string description)
+    {
+        Title = title;
+        Description = description;
+    }
+}

src/Elfisa.Avalonia/ViewModels/PriceListViewModel.cs

@@ -0,0 +1,281 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>Строка предложения с редактируемым количеством «Заказ» (как колонка «Заказ» в WinForms).</summary>
+public partial class OfferRow : ObservableObject
+{
+    public PriceItem Source { get; }
+    public string? DrugName => Source.DrugName;
+    public string? SupplierName => Source.SupplierName;
+    public decimal Price => Source.Price;
+    public decimal Quantity => Source.Quantity;
+
+    [ObservableProperty] private decimal _orderQty = 1;
+
+    public OfferRow(PriceItem src) => Source = src;
+}
+
+/// <summary>
+/// Прайс-лист + сборка заказа. Каталог — как в старой программе:
+/// база (название) → дозировка (МГ) → предложения поставщиков. Справа «Мой заказ».
+/// «Сохранить заказ» кладёт черновик в «Заказы» (статус «Не отправлен»).
+/// </summary>
+public partial class PriceListViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+    private readonly CartService _cart = CartService.Instance;
+
+    // Плоский список предложений + предвычисленные база/МГ (как «Базовое наименование»/«МГ» в WinForms).
+    private readonly List<(PriceItem Item, string BaseName, string Mg)> _indexed = new();
+
+    private const string EmptyMgDisplay = "(без МГ)";
+    private static readonly Regex DosageRegex = new(
+        @"(\d+(?:[.,]\d+)?\s*(?:мг|мкг|г|мл|МЕ|ме)\b)",
+        RegexOptions.IgnoreCase | RegexOptions.Compiled);
+
+    // Три панели дрилдауна
+    public ObservableCollection<string> BaseNames { get; } = new();
+    public ObservableCollection<string> MgOptions { get; } = new();
+    public ObservableCollection<OfferRow> Offers { get; } = new();
+
+    public ObservableCollection<CartItem> Cart => _cart.Items;
+    public ObservableCollection<BuyerLocationDto> Locations { get; } = new();
+    public ObservableCollection<BuyerPriceListDto> MyPriceLists { get; } = new();
+
+    [ObservableProperty] private string _search = "";
+    [ObservableProperty] private BuyerPriceListDto? _selectedPriceList;
+    [ObservableProperty] private bool _hasMultiplePriceLists;
+    [ObservableProperty] private string? _selectedBaseName;
+    [ObservableProperty] private string? _selectedMg;
+    [ObservableProperty] private OfferRow? _selectedOffer;
+    [ObservableProperty] private BuyerLocationDto? _selectedLocation;
+    [ObservableProperty] private string _comment = "";
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string? _status;
+    [ObservableProperty] private int _total;
+    [ObservableProperty] private decimal _cartTotal;
+
+    public PriceListViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        _cart.Changed += Recalc;
+        Recalc();
+        if (Session.Current.IsAuthenticated)
+        {
+            _ = LoadPriceListsAsync();   // грузит «Мои прайсы» → ставит выбор → запускает поиск
+            _ = LoadLocationsAsync();
+        }
+    }
+
+    private bool _suppressPriceListSearch;
+
+    /// <summary>Загружает подключённые покупателю прайсы в дропдаун «Мои прайсы».</summary>
+    private async Task LoadPriceListsAsync()
+    {
+        List<BuyerPriceListDto> lists;
+        try { lists = await _api.GetBuyerPriceListsAsync(); }
+        catch { lists = new(); }
+
+        MyPriceLists.Clear();
+        MyPriceLists.Add(new BuyerPriceListDto { PriceListId = null, Name = "Все прайсы" });
+        foreach (var pl in lists) MyPriceLists.Add(pl);
+        HasMultiplePriceLists = lists.Count > 1;
+
+        _suppressPriceListSearch = true;
+        // Один подключён — выбираем его; несколько или ни одного — «Все прайсы».
+        SelectedPriceList = lists.Count == 1 ? MyPriceLists[1] : MyPriceLists[0];
+        _suppressPriceListSearch = false;
+
+        await SearchAsync();
+    }
+
+    partial void OnSelectedPriceListChanged(BuyerPriceListDto? value)
+    {
+        if (_suppressPriceListSearch) return;
+        _ = SearchAsync();
+    }
+
+    private void Recalc() => CartTotal = _cart.Total;
+
+    private async Task LoadLocationsAsync()
+    {
+        try
+        {
+            var locs = await _api.GetBuyerLocationsAsync();
+            Locations.Clear();
+            foreach (var l in locs) Locations.Add(l);
+            var savedId = SettingsStore.Current.DefaultLocationId;
+            SelectedLocation = Locations.FirstOrDefault(l => l.BuyerLocationId == savedId)
+                               ?? Locations.FirstOrDefault(l => l.IsDefault)
+                               ?? Locations.FirstOrDefault();
+        }
+        catch { }
+    }
+
+    [RelayCommand]
+    private async Task SearchAsync()
+    {
+        Status = null;
+        try
+        {
+            Busy = true;
+            var resp = await _api.GetPriceSummaryAsync(Search, limit: 300, priceListId: SelectedPriceList?.PriceListId);
+            RebuildIndex(resp.Summary ?? new());
+            Total = resp.TotalDrugs;
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+
+    /// <summary>Пересобирает индекс база/МГ и список базовых наименований.</summary>
+    private void RebuildIndex(List<PriceItem> items)
+    {
+        _indexed.Clear();
+        foreach (var it in items)
+        {
+            var mg = ExtractDosage(it.DrugName);
+            var baseName = BuildBaseName(it.DrugName, it.TradeName, mg);
+            if (string.IsNullOrWhiteSpace(baseName)) continue;
+            _indexed.Add((it, baseName, mg));
+        }
+
+        // Сброс выбора и панелей
+        SelectedBaseName = null;
+        MgOptions.Clear();
+        Offers.Clear();
+        SelectedOffer = null;
+
+        var names = _indexed
+            .Select(x => x.BaseName)
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .OrderBy(n => n, StringComparer.OrdinalIgnoreCase)
+            .ToList();
+
+        BaseNames.Clear();
+        foreach (var n in names) BaseNames.Add(n);
+    }
+
+    // База выбрана → заполняем список дозировок.
+    partial void OnSelectedBaseNameChanged(string? value)
+    {
+        MgOptions.Clear();
+        Offers.Clear();
+        SelectedOffer = null;
+        SelectedMg = null;
+        if (string.IsNullOrEmpty(value)) return;
+
+        var mgs = _indexed
+            .Where(x => string.Equals(x.BaseName, value, StringComparison.OrdinalIgnoreCase))
+            .Select(x => string.IsNullOrEmpty(x.Mg) ? EmptyMgDisplay : x.Mg)
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .OrderBy(m => m, StringComparer.OrdinalIgnoreCase)
+            .ToList();
+
+        foreach (var m in mgs) MgOptions.Add(m);
+
+        // Если дозировка одна — сразу её выбираем (меньше кликов).
+        if (MgOptions.Count == 1) SelectedMg = MgOptions[0];
+    }
+
+    // Дозировка выбрана → показываем предложения (фильтр база + МГ).
+    partial void OnSelectedMgChanged(string? value)
+    {
+        Offers.Clear();
+        SelectedOffer = null;
+        if (string.IsNullOrEmpty(SelectedBaseName) || string.IsNullOrEmpty(value)) return;
+
+        var wantMg = string.Equals(value, EmptyMgDisplay, StringComparison.Ordinal) ? "" : value;
+
+        var offers = _indexed
+            .Where(x => string.Equals(x.BaseName, SelectedBaseName, StringComparison.OrdinalIgnoreCase)
+                     && string.Equals(x.Mg, wantMg, StringComparison.OrdinalIgnoreCase))
+            .OrderBy(x => x.Item.Price)
+            .Select(x => new OfferRow(x.Item))
+            .ToList();
+
+        foreach (var o in offers) Offers.Add(o);
+        SelectedOffer = Offers.FirstOrDefault();
+    }
+
+    private static string ExtractDosage(string? drugName)
+    {
+        if (string.IsNullOrWhiteSpace(drugName)) return string.Empty;
+        var m = DosageRegex.Match(drugName);
+        return m.Success ? m.Value.Trim() : string.Empty;
+    }
+
+    private static string BuildBaseName(string? drugName, string? tradeName, string dosage)
+    {
+        if (!string.IsNullOrWhiteSpace(tradeName)) return tradeName.Trim();
+
+        var name = drugName ?? string.Empty;
+        if (!string.IsNullOrWhiteSpace(dosage))
+        {
+            var idx = name.IndexOf(dosage, StringComparison.OrdinalIgnoreCase);
+            if (idx >= 0) name = name.Remove(idx, dosage.Length);
+        }
+
+        name = Regex.Replace(name, @"\s{2,}", " ").Trim(' ', ',', '-', '.', ';');
+        return string.IsNullOrWhiteSpace(name) ? (drugName ?? string.Empty).Trim() : name;
+    }
+
+    [RelayCommand]
+    private void AddToOrder() => AddSelectedOffer();
+
+    /// <summary>Добавляет выбранное предложение в заказ с его количеством (Enter в таблице / кнопка).</summary>
+    public void AddSelectedOffer()
+    {
+        if (SelectedOffer is null) { Status = "Выберите предложение в списке."; return; }
+        var q = SelectedOffer.OrderQty <= 0 ? 1 : SelectedOffer.OrderQty;
+        _cart.Add(SelectedOffer.Source, q);
+        SelectedOffer.OrderQty = 1;
+        Status = null;
+    }
+
+    [RelayCommand]
+    private void RemoveFromCart(CartItem? item) => _cart.Remove(item!);
+
+    [RelayCommand]
+    private async Task SaveDraftAsync()
+    {
+        if (_cart.Count == 0) { Status = "Заказ пуст — добавьте позиции."; return; }
+        try
+        {
+            Busy = true;
+            // Резервируем настоящий номер заказа EX-####### (как в WinForms)
+            var sign = await _api.NextGlobalSignAsync();
+
+            var draft = new DraftOrder
+            {
+                Number = string.IsNullOrWhiteSpace(sign) ? $"ЧРН-{DateTime.Now:HHmmss}" : sign!,
+                LocationId = SelectedLocation?.BuyerLocationId,
+                LocationAddress = SelectedLocation?.Address,
+                Comment = string.IsNullOrWhiteSpace(Comment) ? null : Comment.Trim(),
+                Items = _cart.Items.Select(c => new DraftItem
+                {
+                    SupplierPriceId = c.Source.SupplierPriceId ?? "",
+                    Name = c.Name,
+                    Supplier = c.Supplier,
+                    Barcode = c.Source.Barcode,
+                    Price = c.Price,
+                    Qty = c.Qty
+                }).ToList()
+            };
+            DraftStore.Add(draft);
+            _cart.Clear();
+            Comment = "";
+            Status = $"Заказ сохранён: {draft.Number} → раздел «Заказы» (не отправлен).";
+        }
+        catch (Exception ex) { Status = "Ошибка сохранения: " + ex.Message; }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/ReportsViewModel.cs

@@ -0,0 +1,215 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public sealed class ReportColumn
+{
+    public string Header { get; init; } = "";
+    public bool Numeric { get; init; }
+    public double Weight { get; init; } = 100;   // ширина в пикселях (для нетянущихся)
+    public bool Stretch { get; init; }            // тянуть на всё свободное место (star)
+}
+
+/// <summary>Строка отчёта: ячейки как строки, доступ по индексу для DataGrid.</summary>
+public sealed class ReportRow
+{
+    private readonly string[] _cells;
+    public ReportRow(string[] cells) => _cells = cells;
+    public string this[int i] => i >= 0 && i < _cells.Length ? _cells[i] : "";
+}
+
+public partial class ReportsViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+    private List<BuyerReportLineDto> _lines = new();
+
+    /// <summary>Сигнал View пересобрать колонки DataGrid.</summary>
+    public event Action? ColumnsChanged;
+
+    public ObservableCollection<ReportColumn> Columns { get; } = new();
+    public ObservableCollection<ReportRow> Rows { get; } = new();
+
+    [ObservableProperty] private DateTimeOffset _dateFrom = DateTimeOffset.Now.AddMonths(-1);
+    [ObservableProperty] private DateTimeOffset _dateTo = DateTimeOffset.Now;
+
+    public string[] ReportTypes { get; } = { "Мои заказы", "По поставщикам", "По товарам", "По аптекам" };
+    [ObservableProperty] private int _selectedReportIndex;
+
+    public string[] AiFormats { get; } = { "Word", "Excel" };
+    [ObservableProperty] private int _selectedAiFormat;
+    [ObservableProperty] private string _aiPrompt = "";
+
+    [ObservableProperty] private string _totals = "";
+    [ObservableProperty] private string? _status;
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private bool _aiBusy;
+
+    public ReportsViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        if (Session.Current.IsAuthenticated)
+            _ = BuildAsync();   // авто-загрузка за последний месяц при открытии
+    }
+
+    partial void OnSelectedReportIndexChanged(int value) => Render();
+
+    [RelayCommand]
+    private async Task BuildAsync()
+    {
+        Status = null;
+        try
+        {
+            Busy = true;
+            _lines = await _api.GetBuyerReportAsync(DateFrom.DateTime.Date, DateTo.DateTime.Date);
+            Render();
+            if (_lines.Count == 0) Status = "За выбранный период заказов нет.";
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+
+    [RelayCommand]
+    private async Task GenerateAiAsync()
+    {
+        Status = null;
+        if (string.IsNullOrWhiteSpace(AiPrompt)) { Status = "Введите запрос для ИИ."; return; }
+        try
+        {
+            AiBusy = true;
+            var fmt = SelectedAiFormat == 1 ? "xlsx" : "docx";
+            var res = await _api.GenerateAiReportAsync(AiPrompt.Trim(), fmt);
+            var dir = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+            var safe = string.Join("_", res.FileName.Split(Path.GetInvalidFileNameChars()));
+            var path = Path.Combine(dir, safe);
+            if (File.Exists(path))
+            {
+                var name = Path.GetFileNameWithoutExtension(safe);
+                var ext = Path.GetExtension(safe);
+                path = Path.Combine(dir, $"{name}_{DateTime.Now:yyyyMMdd_HHmmss}{ext}");
+            }
+            File.WriteAllBytes(path, res.Content);
+            Status = "Отчёт сохранён: " + path;
+            OpenFile(path);
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { AiBusy = false; }
+    }
+
+    private void Render()
+    {
+        Columns.Clear();
+        Rows.Clear();
+
+        var (cols, rows) = Aggregate(_lines, SelectedReportIndex);
+        foreach (var c in cols) Columns.Add(c);
+        foreach (var r in rows) Rows.Add(new ReportRow(r));
+
+        var orders = _lines.Select(l => l.OrderId).Distinct().Count();
+        var sum = _lines.Sum(l => l.Sum);
+        Totals = $"Заказов: {orders}    Позиций: {_lines.Count}    Сумма: {sum:N2}";
+        ColumnsChanged?.Invoke();
+    }
+
+    private static (List<ReportColumn> cols, List<string[]> rows) Aggregate(List<BuyerReportLineDto> lines, int type)
+    {
+        string N2(decimal d) => d.ToString("N2");
+        string N3(decimal d) => d.ToString("N3");
+        string D(DateTime? dt) => dt?.ToLocalTime().ToString("dd.MM.yyyy") ?? "";
+
+        switch (type)
+        {
+            case 1: // По поставщикам
+            {
+                var cols = new List<ReportColumn>
+                {
+                    new() { Header = "Поставщик", Stretch = true },
+                    new() { Header = "Заказов", Numeric = true, Weight = 90 },
+                    new() { Header = "Позиций", Numeric = true, Weight = 90 },
+                    new() { Header = "Сумма", Numeric = true, Weight = 120 },
+                };
+                var rows = lines.GroupBy(l => string.IsNullOrWhiteSpace(l.Supplier) ? "(не указан)" : l.Supplier!)
+                    .OrderByDescending(g => g.Sum(x => x.Sum))
+                    .Select(g => new[] { g.Key, g.Select(x => x.OrderId).Distinct().Count().ToString(),
+                                         g.Count().ToString(), N2(g.Sum(x => x.Sum)) }).ToList();
+                return (cols, rows);
+            }
+            case 2: // По товарам
+            {
+                var cols = new List<ReportColumn>
+                {
+                    new() { Header = "Товар", Stretch = true },
+                    new() { Header = "Код", Weight = 100 },
+                    new() { Header = "Кол-во", Numeric = true, Weight = 100 },
+                    new() { Header = "Сумма", Numeric = true, Weight = 120 },
+                };
+                var rows = lines.GroupBy(l => ((l.ItemName ?? "").Trim() + "|" + (l.ItemCode ?? "")))
+                    .OrderByDescending(g => g.Sum(x => x.Sum))
+                    .Select(g => { var f = g.First(); return new[] { f.ItemName ?? "", f.ItemCode ?? "",
+                                         N3(g.Sum(x => x.Qty)), N2(g.Sum(x => x.Sum)) }; }).ToList();
+                return (cols, rows);
+            }
+            case 3: // По аптекам
+            {
+                var cols = new List<ReportColumn>
+                {
+                    new() { Header = "Аптека", Stretch = true },
+                    new() { Header = "Заказов", Numeric = true, Weight = 90 },
+                    new() { Header = "Позиций", Numeric = true, Weight = 90 },
+                    new() { Header = "Сумма", Numeric = true, Weight = 120 },
+                };
+                var rows = lines.GroupBy(l => string.IsNullOrWhiteSpace(l.Location) ? "(не указана)" : l.Location!)
+                    .OrderByDescending(g => g.Sum(x => x.Sum))
+                    .Select(g => new[] { g.Key, g.Select(x => x.OrderId).Distinct().Count().ToString(),
+                                         g.Count().ToString(), N2(g.Sum(x => x.Sum)) }).ToList();
+                return (cols, rows);
+            }
+            default: // Мои заказы
+            {
+                var cols = new List<ReportColumn>
+                {
+                    new() { Header = "Дата", Weight = 105 },
+                    new() { Header = "Номер", Weight = 138 },
+                    new() { Header = "Поставщик", Weight = 150 },
+                    new() { Header = "Аптека", Stretch = true },
+                    new() { Header = "Позиций", Numeric = true, Weight = 95 },
+                    new() { Header = "Сумма", Numeric = true, Weight = 125 },
+                    new() { Header = "Статус", Weight = 100 },
+                };
+                var rows = lines.GroupBy(l => l.OrderId)
+                    .OrderByDescending(g => g.First().OrderDate ?? DateTime.MinValue)
+                    .Select(g =>
+                    {
+                        var f = g.First();
+                        var sup = string.Join(", ", g.Select(x => x.Supplier).Where(s => !string.IsNullOrWhiteSpace(s)).Distinct());
+                        return new[] { D(f.OrderDate), f.GlobalSign ?? "", sup, f.Location ?? "",
+                                       g.Count().ToString(), N2(g.Sum(x => x.Sum)), f.Status ?? "" };
+                    }).ToList();
+                return (cols, rows);
+            }
+        }
+    }
+
+    private static void OpenFile(string path)
+    {
+        try
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                Process.Start(new ProcessStartInfo { FileName = path, UseShellExecute = true });
+            else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+                Process.Start("open", $"\"{path}\"");
+            else
+                Process.Start("xdg-open", $"\"{path}\"");
+        }
+        catch { /* открыть не удалось — путь показан в статусе */ }
+    }
+}

src/Elfisa.Avalonia/ViewModels/RootViewModel.cs

@@ -0,0 +1,48 @@
+using System;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>Корневой VM: переключает экран входа и основной шелл.</summary>
+public partial class RootViewModel : ViewModelBase
+{
+    private ViewModelBase _current = null!;
+    public ViewModelBase Current
+    {
+        get => _current;
+        private set => SetProperty(ref _current, value);
+    }
+
+    public RootViewModel()
+    {
+        Current = new LoginViewModel(OnLoggedIn);
+        TryDevAutoLogin();
+    }
+
+    // Dev-режим: если заданы ELF_DEV_USER/ELF_DEV_PASS — входим автоматически.
+    // Обычных пользователей не затрагивает (переменных нет).
+    private async void TryDevAutoLogin()
+    {
+        var u = Environment.GetEnvironmentVariable("ELF_DEV_USER");
+        var p = Environment.GetEnvironmentVariable("ELF_DEV_PASS");
+        if (string.IsNullOrWhiteSpace(u) || string.IsNullOrWhiteSpace(p)) return;
+        try
+        {
+            var api = new ApiClient();
+            var resp = await api.LoginAsync(u, p);
+            Session.Current.Token = resp.Token;
+            Session.Current.Role = resp.Role;
+            Session.Current.Username = u;
+            OnLoggedIn();
+        }
+        catch { /* остаёмся на экране входа */ }
+    }
+
+    private void OnLoggedIn() => Current = new ShellViewModel(Logout);
+
+    private void Logout()
+    {
+        Session.Current.Clear();
+        Current = new LoginViewModel(OnLoggedIn);
+    }
+}

src/Elfisa.Avalonia/ViewModels/SendOrderViewModel.cs

@@ -0,0 +1,106 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+/// <summary>
+/// Отправить: поиск по прайсу → корзина (общая с Прайс-листом) → создание заказа.
+/// ВНИМАНИЕ: отправка создаёт реальный заказ у поставщика.
+/// </summary>
+public partial class SendOrderViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+    private readonly CartService _cart = CartService.Instance;
+
+    public ObservableCollection<PriceItem> Results { get; } = new();
+    public ObservableCollection<CartItem> Cart => _cart.Items;
+    public ObservableCollection<BuyerLocationDto> Locations { get; } = new();
+
+    [ObservableProperty] private string _search = "";
+    [ObservableProperty] private PriceItem? _selectedResult;
+    [ObservableProperty] private BuyerLocationDto? _selectedLocation;
+    [ObservableProperty] private string _comment = "";
+    [ObservableProperty] private bool _busy;
+    [ObservableProperty] private string? _status;
+    [ObservableProperty] private decimal _cartTotal;
+
+    public SendOrderViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        _cart.Changed += Recalc;
+        Recalc();
+        if (Session.Current.IsAuthenticated) _ = InitAsync();
+    }
+
+    private async Task InitAsync()
+    {
+        try
+        {
+            var locs = await _api.GetBuyerLocationsAsync();
+            Locations.Clear();
+            foreach (var l in locs) Locations.Add(l);
+            SelectedLocation = Locations.FirstOrDefault(l => l.IsDefault) ?? Locations.FirstOrDefault();
+            await SearchAsync();
+        }
+        catch (Exception ex) { Status = ex.Message; }
+    }
+
+    [RelayCommand]
+    private async Task SearchAsync()
+    {
+        try
+        {
+            Busy = true; Status = null;
+            var resp = await _api.GetPriceSummaryAsync(Search, limit: 200);
+            Results.Clear();
+            foreach (var it in resp.Summary ?? new()) Results.Add(it);
+        }
+        catch (Exception ex) { Status = ex.Message; }
+        finally { Busy = false; }
+    }
+
+    [RelayCommand]
+    private void AddToCart()
+    {
+        if (SelectedResult is null) { Status = "Выберите позицию в списке слева."; return; }
+        _cart.Add(SelectedResult);
+    }
+
+    [RelayCommand]
+    private void RemoveFromCart(CartItem? item) => _cart.Remove(item!);
+
+    private void Recalc() => CartTotal = _cart.Total;
+
+    [RelayCommand]
+    private async Task SendAsync()
+    {
+        Status = null;
+        if (_cart.Count == 0) { Status = "Корзина пуста."; return; }
+        try
+        {
+            Busy = true;
+            var req = new BuyerOrderCreateRequest
+            {
+                LocationId = SelectedLocation?.BuyerLocationId,
+                Comment = string.IsNullOrWhiteSpace(Comment) ? null : Comment.Trim(),
+                Items = _cart.Items.Select(c => new BuyerOrderItemReq
+                {
+                    SupplierPriceId = c.Source.SupplierPriceId ?? "",
+                    Qty = (double)c.Qty,
+                    ItemName = c.Source.DrugName,
+                    Barcode = c.Source.Barcode
+                }).ToList()
+            };
+            var resp = await _api.CreateOrderAsync(req);
+            Status = $"✓ Заказ {resp.GlobalSign ?? resp.OrderId} создан: {resp.ItemsCount} поз., {resp.TotalAmount:N2}.";
+            _cart.Clear();
+        }
+        catch (Exception ex) { Status = "Ошибка отправки: " + ex.Message; }
+        finally { Busy = false; }
+    }
+}

src/Elfisa.Avalonia/ViewModels/SettingsViewModel.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public partial class SettingsViewModel : ViewModelBase
+{
+    private readonly ApiClient _api = new();
+
+    [ObservableProperty] private string _apiBaseUrl = "";
+    public string[] Themes { get; } = { "Светлая", "Тёмная" };
+    [ObservableProperty] private int _themeIndex;
+
+    public ObservableCollection<BuyerLocationDto> Locations { get; } = new();
+    [ObservableProperty] private BuyerLocationDto? _selectedLocation;
+
+    public SettingsViewModel()
+    {
+        _api.SetToken(Session.Current.Token);
+        ApiBaseUrl = SettingsStore.Current.ApiBaseUrl ?? AppConfig.DefaultApiBaseUrl;
+        ThemeIndex = SettingsStore.Current.Theme == "Dark" ? 1 : 0;
+        if (Session.Current.IsAuthenticated) _ = LoadLocationsAsync();
+    }
+
+    private async Task LoadLocationsAsync()
+    {
+        try
+        {
+            var locs = await _api.GetBuyerLocationsAsync();
+            Locations.Clear();
+            foreach (var l in locs) Locations.Add(l);
+            var savedId = SettingsStore.Current.DefaultLocationId;
+            SelectedLocation = Locations.FirstOrDefault(l => l.BuyerLocationId == savedId)
+                               ?? Locations.FirstOrDefault(l => l.IsDefault)
+                               ?? Locations.FirstOrDefault();
+        }
+        catch { /* локации не критичны для настроек */ }
+    }
+}

src/Elfisa.Avalonia/ViewModels/ShellViewModel.cs

@@ -0,0 +1,136 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public class NavItem
+{
+    public string Title { get; }
+    public string Icon { get; }   // глиф Segoe MDL2 Assets
+    public Func<ViewModelBase> Factory { get; }
+    public NavItem(string title, string icon, Func<ViewModelBase> factory)
+    {
+        Title = title; Icon = icon; Factory = factory;
+    }
+}
+
+/// <summary>Открытая вкладка-документ.</summary>
+public sealed class DocumentTab
+{
+    public string Title { get; }
+    public string Key { get; }
+    public ViewModelBase Content { get; }
+    public DocumentTab(string title, string key, ViewModelBase content)
+    {
+        Title = title; Key = key; Content = content;
+    }
+}
+
+public partial class ShellViewModel : ViewModelBase
+{
+    private readonly Action _logout;
+    private readonly ApiClient _api = new();
+    private bool _sync;
+
+    public ObservableCollection<NavItem> NavItems { get; }
+    public ObservableCollection<DocumentTab> Tabs { get; } = new();
+
+    [ObservableProperty] private NavItem? _selectedNav;
+    [ObservableProperty] private DocumentTab? _activeTab;
+
+    public string UserName => Session.Current.Username ?? "";
+    public string RoleLabel => Session.Current.Role switch
+    {
+        "buyer" => "Покупатель",
+        "supplier" => "Поставщик",
+        "manager" => "Менеджер",
+        "admin" => "Администратор",
+        _ => Session.Current.Role ?? ""
+    };
+
+    [ObservableProperty] private string _pharmacyAddress = "";
+
+    // Segoe MDL2 Assets — те же глифы, что в WinForms-версии
+    private const string IcoPrice = "";
+    private const string IcoOrders = "";
+    private const string IcoInvoices = "";
+    private const string IcoReports = "";
+    private const string IcoUpload = "";
+    private const string IcoSend = "";
+    private const string IcoRefusals = "";
+    private const string IcoDirectory = "";
+
+    public ShellViewModel(Action logout)
+    {
+        _logout = logout;
+        _api.SetToken(Session.Current.Token);
+
+        NavItems = new ObservableCollection<NavItem>
+        {
+            new("Прайс-лист", IcoPrice, () => new PriceListViewModel()),
+            new("Заказы", IcoOrders, () => new OrdersViewModel()),
+            new("Накладные", IcoInvoices, () => new InvoicesViewModel()),
+            new("Отчёты", IcoReports, () => new ReportsViewModel()),
+            new("Загрузить", IcoUpload, () => new LoadPriceViewModel()),
+            new("Отправить", IcoSend, () => new SendOrderViewModel()),
+            new("Отказы", IcoRefusals, () => new PlaceholderPageViewModel("Отказы",
+                "Отказные позиции по заказам. Нужен серверный эндпоинт (RefuseItemsCount сейчас только в локальной БД WinForms).")),
+            new("Справочник", IcoDirectory, () => new DirectoryViewModel()),
+        };
+
+        SelectedNav = NavItems.First(n => n.Title == "Отчёты");
+        if (Session.Current.IsAuthenticated) _ = LoadPharmacyAsync();
+    }
+
+    private async Task LoadPharmacyAsync()
+    {
+        try
+        {
+            var locs = await _api.GetBuyerLocationsAsync();
+            var def = locs.FirstOrDefault(l => l.IsDefault) ?? locs.FirstOrDefault();
+            PharmacyAddress = def?.Address ?? "";
+        }
+        catch { }
+    }
+
+    partial void OnSelectedNavChanged(NavItem? value)
+    {
+        if (_sync || value is null) return;
+        OpenOrActivate(value);
+    }
+
+    private void OpenOrActivate(NavItem nav)
+    {
+        var existing = Tabs.FirstOrDefault(t => t.Key == nav.Title);
+        if (existing is not null) { ActiveTab = existing; return; }
+        var tab = new DocumentTab(nav.Title, nav.Title, nav.Factory());
+        Tabs.Add(tab);
+        ActiveTab = tab;
+    }
+
+    partial void OnActiveTabChanged(DocumentTab? value)
+    {
+        if (value is null) return;
+        _sync = true;
+        SelectedNav = NavItems.FirstOrDefault(n => n.Title == value.Key);
+        _sync = false;
+    }
+
+    [RelayCommand]
+    private void CloseTab(DocumentTab? tab)
+    {
+        if (tab is null) return;
+        int idx = Tabs.IndexOf(tab);
+        bool wasActive = ReferenceEquals(ActiveTab, tab);
+        Tabs.Remove(tab);
+        if (wasActive)
+            ActiveTab = Tabs.Count == 0 ? null : Tabs[Math.Min(idx, Tabs.Count - 1)];
+    }
+
+    [RelayCommand] private void Logout() => _logout();
+}

src/Elfisa.Avalonia/ViewModels/ViewModelBase.cs

@@ -0,0 +1,7 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace Elfisa.Avalonia.ViewModels;
+
+public abstract class ViewModelBase : ObservableObject
+{
+}

src/Elfisa.Avalonia/Views/DirectoryView.axaml

@@ -0,0 +1,56 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:core="using:Elfisa.Core"
+             x:Class="Elfisa.Avalonia.Views.DirectoryView"
+             x:DataType="vm:DirectoryViewModel">
+
+    <ScrollViewer>
+        <StackPanel Margin="24" Spacing="14">
+            <StackPanel Spacing="2">
+                <TextBlock Text="Справочник" Classes="h1"/>
+                <TextBlock Text="Профиль и грузополучатели" Classes="muted"/>
+            </StackPanel>
+
+            <!-- Профиль -->
+            <Border Classes="card" MaxWidth="720" HorizontalAlignment="Left">
+                <StackPanel Spacing="10">
+                    <TextBlock Text="Учётная запись" Classes="h2"/>
+                    <Grid ColumnDefinitions="160,*" RowDefinitions="Auto,Auto">
+                        <TextBlock Grid.Row="0" Grid.Column="0" Text="Логин" Classes="muted"/>
+                        <TextBlock Grid.Row="0" Grid.Column="1" Text="{Binding UserName}" Foreground="{DynamicResource Text}"/>
+                        <TextBlock Grid.Row="1" Grid.Column="0" Text="Роль" Classes="muted" Margin="0,6,0,0"/>
+                        <TextBlock Grid.Row="1" Grid.Column="1" Text="{Binding RoleLabel}" Foreground="{DynamicResource Text}" Margin="0,6,0,0"/>
+                    </Grid>
+                </StackPanel>
+            </Border>
+
+            <!-- Грузополучатели -->
+            <Border Classes="card" MaxWidth="720" HorizontalAlignment="Left">
+                <StackPanel Spacing="10">
+                    <TextBlock Text="Грузополучатели (адреса)" Classes="h2"/>
+                    <ItemsControl ItemsSource="{Binding Locations}">
+                        <ItemsControl.ItemTemplate>
+                            <DataTemplate x:DataType="core:BuyerLocationDto">
+                                <Border Padding="12" Margin="0,0,0,8" CornerRadius="9"
+                                        Background="{DynamicResource RowAlt}" BorderThickness="1" BorderBrush="{DynamicResource Border}">
+                                    <StackPanel Spacing="3">
+                                        <TextBlock Text="{Binding Address}" Foreground="{DynamicResource Text}" TextWrapping="Wrap"/>
+                                        <StackPanel Orientation="Horizontal" Spacing="10">
+                                            <TextBlock Text="{Binding RegionName}" Classes="muted"/>
+                                            <Border Background="{DynamicResource AccentSoft}" CornerRadius="5" Padding="6,1"
+                                                    IsVisible="{Binding IsDefault}">
+                                                <TextBlock Text="по умолчанию" FontSize="11" Foreground="{DynamicResource AccentPressed}"/>
+                                            </Border>
+                                        </StackPanel>
+                                    </StackPanel>
+                                </Border>
+                            </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                    </ItemsControl>
+                    <TextBlock Text="{Binding Status}" Classes="muted"/>
+                </StackPanel>
+            </Border>
+        </StackPanel>
+    </ScrollViewer>
+</UserControl>

src/Elfisa.Avalonia/Views/DirectoryView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class DirectoryView : UserControl
+{
+    public DirectoryView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/InvoicesView.axaml

@@ -0,0 +1,39 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.InvoicesView"
+             x:DataType="vm:InvoicesViewModel">
+
+    <DockPanel Margin="24">
+        <Grid DockPanel.Dock="Top" Margin="0,0,0,14">
+            <StackPanel Spacing="2" VerticalAlignment="Center">
+                <TextBlock Text="Накладные" Classes="h1"/>
+                <TextBlock Text="Реестр приходных документов" Classes="muted"/>
+            </StackPanel>
+            <TextBlock Text="{Binding Totals}" HorizontalAlignment="Right" VerticalAlignment="Center"
+                       FontWeight="SemiBold" Foreground="{DynamicResource Accent}"/>
+        </Grid>
+
+        <Border DockPanel.Dock="Top" Margin="0,0,0,10" Padding="10,7" CornerRadius="6"
+                Background="{DynamicResource AccentSoft}"
+                IsVisible="{Binding Status, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+            <TextBlock Text="{Binding Status}" Foreground="{DynamicResource AccentPressed}" FontSize="12.5"/>
+        </Border>
+
+        <Border Classes="card" Padding="0" ClipToBounds="True">
+            <DataGrid ItemsSource="{Binding Rows}" x:CompileBindings="False"
+                      AutoGenerateColumns="False" IsReadOnly="True" HeadersVisibility="Column"
+                      CanUserResizeColumns="True" CanUserSortColumns="False">
+                <DataGrid.Columns>
+                    <DataGridTextColumn Header="Дата" Width="112" Binding="{Binding Date}"/>
+                    <DataGridTextColumn Header="Номер" Width="150" Binding="{Binding Number}"/>
+                    <DataGridTextColumn Header="Поставщик" Width="160" Binding="{Binding Supplier}"/>
+                    <DataGridTextColumn Header="Аптека" Width="*" Binding="{Binding Location}"/>
+                    <DataGridTextColumn Header="Позиций" Width="90" Binding="{Binding ItemsCount}" CellStyleClasses="num"/>
+                    <DataGridTextColumn Header="Сумма" Width="132" Binding="{Binding Sum, StringFormat='{}{0:N2}'}" CellStyleClasses="num"/>
+                </DataGrid.Columns>
+            </DataGrid>
+        </Border>
+    </DockPanel>
+</UserControl>

src/Elfisa.Avalonia/Views/InvoicesView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class InvoicesView : UserControl
+{
+    public InvoicesView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/LoadPriceView.axaml

@@ -0,0 +1,61 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             xmlns:core="using:Elfisa.Core"
+             x:Class="Elfisa.Avalonia.Views.LoadPriceView"
+             x:DataType="vm:LoadPriceViewModel">
+
+    <Grid Margin="24" RowDefinitions="Auto,*">
+        <StackPanel Grid.Row="0" Spacing="2">
+            <TextBlock Text="Загрузить" Classes="h1"/>
+            <TextBlock Text="Скачать актуальный прайс с сервера" Classes="muted"/>
+        </StackPanel>
+
+        <Border Grid.Row="1" Classes="card" MaxWidth="560" Padding="30"
+                HorizontalAlignment="Center" VerticalAlignment="Center">
+            <StackPanel Spacing="18" HorizontalAlignment="Center">
+                <Border Width="60" Height="60" CornerRadius="30" Background="{DynamicResource AccentSoft}">
+                    <TextBlock Text="📥" FontSize="26" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                </Border>
+
+                <TextBlock Text="{Binding LastLoaded}" Classes="muted" HorizontalAlignment="Center" TextAlignment="Center"/>
+
+                <!-- Подключённые прайсы — что именно скачиваем -->
+                <Border Background="{DynamicResource RowAlt}" CornerRadius="10" Padding="16,12" Width="380"
+                        BorderThickness="1" BorderBrush="{DynamicResource Border}">
+                    <StackPanel Spacing="8">
+                        <TextBlock Text="{Binding PriceListsInfo}" FontWeight="SemiBold" Foreground="{DynamicResource Text}"/>
+                        <ItemsControl ItemsSource="{Binding PriceLists}">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate x:DataType="core:BuyerPriceListDto">
+                                    <Grid ColumnDefinitions="Auto,*" Margin="0,3">
+                                        <TextBlock Grid.Column="0" Text="•  " Foreground="{DynamicResource Accent}" FontWeight="Bold"/>
+                                        <StackPanel Grid.Column="1" Spacing="1">
+                                            <TextBlock Text="{Binding Name}" Foreground="{DynamicResource Text}" TextWrapping="Wrap"/>
+                                            <TextBlock Text="{Binding SupplierName}" Classes="muted" FontSize="12"/>
+                                        </StackPanel>
+                                    </Grid>
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </StackPanel>
+                </Border>
+
+                <Button Classes="primary" Content="Загрузить прайс" HorizontalAlignment="Center"
+                        Padding="28,12" Command="{Binding LoadCommand}" IsEnabled="{Binding !Busy}"/>
+
+                <StackPanel Spacing="6" IsVisible="{Binding Busy}">
+                    <ProgressBar Minimum="0" Maximum="100" Value="{Binding Progress}" Height="8" Width="360"/>
+                    <TextBlock Text="{Binding ProgressText}" Classes="muted" HorizontalAlignment="Center"/>
+                </StackPanel>
+
+                <Border Background="{DynamicResource AccentSoft}" CornerRadius="8" Padding="14,10"
+                        IsVisible="{Binding Result, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+                    <TextBlock Text="{Binding Result}" Foreground="{DynamicResource AccentPressed}"
+                               TextWrapping="Wrap" TextAlignment="Center"/>
+                </Border>
+            </StackPanel>
+        </Border>
+    </Grid>
+</UserControl>

src/Elfisa.Avalonia/Views/LoadPriceView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class LoadPriceView : UserControl
+{
+    public LoadPriceView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/LoginView.axaml

@@ -0,0 +1,39 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.LoginView"
+             x:DataType="vm:LoginViewModel">
+
+    <Grid Background="{DynamicResource Bg}">
+        <Border Classes="card" Width="390" Padding="30"
+                HorizontalAlignment="Center" VerticalAlignment="Center">
+            <StackPanel Spacing="16">
+                <StackPanel Spacing="2" Margin="0,0,0,6">
+                    <TextBlock Text="ЭльФиСА" FontSize="28" FontWeight="Bold"
+                               Foreground="{DynamicResource Accent}" HorizontalAlignment="Center"/>
+                    <TextBlock Text="Электронная Фармация" Classes="muted" HorizontalAlignment="Center"/>
+                </StackPanel>
+
+                <StackPanel Spacing="6">
+                    <TextBlock Text="Логин" Classes="label"/>
+                    <TextBox Text="{Binding Username}" Watermark="e-mail или логин"/>
+                </StackPanel>
+
+                <StackPanel Spacing="6">
+                    <TextBlock Text="Пароль" Classes="label"/>
+                    <TextBox Text="{Binding Password}" PasswordChar="●" Watermark="пароль"/>
+                </StackPanel>
+
+                <Border Background="#1FDC2626" CornerRadius="6" Padding="10,7"
+                        IsVisible="{Binding Error, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+                    <TextBlock Text="{Binding Error}" Foreground="#DC2626" TextWrapping="Wrap" FontSize="12.5"/>
+                </Border>
+
+                <Button Classes="primary" Content="Войти" IsDefault="True"
+                        HorizontalAlignment="Stretch" Margin="0,4,0,0"
+                        Command="{Binding LoginCommand}" IsEnabled="{Binding !Busy}"/>
+            </StackPanel>
+        </Border>
+    </Grid>
+</UserControl>

src/Elfisa.Avalonia/Views/LoginView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class LoginView : UserControl
+{
+    public LoginView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/MainWindow.axaml

@@ -0,0 +1,16 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="1200" d:DesignHeight="740"
+        x:Class="Elfisa.Avalonia.Views.MainWindow"
+        x:DataType="vm:RootViewModel"
+        Icon="/Assets/avalonia-logo.ico"
+        Width="1200" Height="740" MinWidth="920" MinHeight="600"
+        Background="{DynamicResource Bg}"
+        Title="ЭльФиСА">
+
+    <ContentControl Content="{Binding Current}"/>
+
+</Window>

src/Elfisa.Avalonia/Views/MainWindow.axaml.cs

@@ -0,0 +1,11 @@
+using Avalonia.Controls;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+}

src/Elfisa.Avalonia/Views/OrdersView.axaml

@@ -0,0 +1,83 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.OrdersView"
+             x:DataType="vm:OrdersViewModel">
+
+    <Grid Margin="24" RowDefinitions="Auto,*">
+        <StackPanel Grid.Row="0" Spacing="2" Margin="0,0,0,14">
+            <TextBlock Text="Заказы" Classes="h1"/>
+            <TextBlock Text="История заказов и их состав" Classes="muted"/>
+        </StackPanel>
+
+        <Grid Grid.Row="1" ColumnDefinitions="*,16,430">
+
+            <!-- Список заказов -->
+            <Border Grid.Column="0" Classes="card" Padding="0" ClipToBounds="True">
+                <DataGrid ItemsSource="{Binding Orders}" SelectedItem="{Binding SelectedOrder}"
+                          x:CompileBindings="False"
+                          AutoGenerateColumns="False" IsReadOnly="True" HeadersVisibility="Column"
+                          CanUserResizeColumns="True" CanUserSortColumns="False">
+                    <DataGrid.Columns>
+                        <DataGridTextColumn Header="Дата" Width="112" Binding="{Binding Date}"/>
+                        <DataGridTextColumn Header="Номер" Width="140" Binding="{Binding Number}"/>
+                        <DataGridTextColumn Header="Поставщик" Width="*" Binding="{Binding Supplier}"/>
+                        <DataGridTextColumn Header="Позиций" Width="90" Binding="{Binding ItemsCount}" CellStyleClasses="num"/>
+                        <DataGridTextColumn Header="Сумма" Width="132" Binding="{Binding Sum, StringFormat='{}{0:N2}'}" CellStyleClasses="num"/>
+                        <DataGridTextColumn Header="Статус" Width="95" Binding="{Binding Status}"/>
+                    </DataGrid.Columns>
+                </DataGrid>
+            </Border>
+
+            <!-- Карточка заказа -->
+            <Border Grid.Column="2" Classes="card" Padding="18">
+                <DockPanel>
+                    <StackPanel DockPanel.Dock="Top" Spacing="4" Margin="0,0,0,14">
+                        <TextBlock Text="{Binding SelectedOrder.Number}" Classes="h2"/>
+                        <StackPanel Orientation="Horizontal" Spacing="10">
+                            <TextBlock Text="{Binding SelectedOrder.Date}" Classes="muted"/>
+                            <TextBlock Text="{Binding SelectedOrder.Status}" Classes="muted"/>
+                        </StackPanel>
+                        <TextBlock Text="{Binding SelectedOrder.Supplier}" Classes="muted" TextWrapping="Wrap"/>
+                        <TextBlock Text="{Binding SelectedOrder.Location}" Classes="muted" TextWrapping="Wrap"/>
+                    </StackPanel>
+
+                    <StackPanel DockPanel.Dock="Bottom" Spacing="10" Margin="0,12,0,0">
+                        <Border Padding="0,10,0,0" BorderThickness="0,1,0,0" BorderBrush="{DynamicResource Border}">
+                            <Grid ColumnDefinitions="*,Auto">
+                                <TextBlock Grid.Column="0" Text="Итого" FontWeight="SemiBold" Foreground="{DynamicResource Text}"/>
+                                <TextBlock Grid.Column="1" Text="{Binding SelectedOrder.Sum, StringFormat='{}{0:N2}'}"
+                                           FontWeight="SemiBold" Foreground="{DynamicResource Accent}"/>
+                            </Grid>
+                        </Border>
+                        <!-- Действия для черновика (не отправленного заказа) -->
+                        <StackPanel Orientation="Horizontal" Spacing="10" IsVisible="{Binding SelectedOrder.IsDraft, FallbackValue=False}">
+                            <Button Classes="primary" Content="Отправить заказ" Command="{Binding SendDraftCommand}" IsEnabled="{Binding !Busy}"/>
+                            <Button Content="Удалить" Command="{Binding DeleteDraftCommand}"
+                                    Background="Transparent" Foreground="{DynamicResource Muted}"
+                                    BorderBrush="{DynamicResource Border}" BorderThickness="1" CornerRadius="8" Padding="16,9" Cursor="Hand"/>
+                        </StackPanel>
+                    </StackPanel>
+
+                    <DataGrid ItemsSource="{Binding SelectedOrder.Items}" x:CompileBindings="False"
+                              AutoGenerateColumns="False" IsReadOnly="True" HeadersVisibility="Column"
+                              CanUserResizeColumns="True" CanUserSortColumns="False">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Header="Товар" Width="*" Binding="{Binding Name}"/>
+                            <DataGridTextColumn Header="Кол-во" Width="78" Binding="{Binding Qty, StringFormat='{}{0:N0}'}" CellStyleClasses="num"/>
+                            <DataGridTextColumn Header="Сумма" Width="110" Binding="{Binding Sum, StringFormat='{}{0:N2}'}" CellStyleClasses="num"/>
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </DockPanel>
+            </Border>
+        </Grid>
+
+        <!-- Статус -->
+        <Border Grid.Row="1" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="4"
+                Padding="10,7" CornerRadius="6" Background="{DynamicResource AccentSoft}"
+                IsVisible="{Binding Status, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+            <TextBlock Text="{Binding Status}" Foreground="{DynamicResource AccentPressed}" FontSize="12.5"/>
+        </Border>
+    </Grid>
+</UserControl>

src/Elfisa.Avalonia/Views/OrdersView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class OrdersView : UserControl
+{
+    public OrdersView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/PlaceholderPageView.axaml

@@ -0,0 +1,24 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             x:Class="Elfisa.Avalonia.Views.PlaceholderPageView"
+             x:DataType="vm:PlaceholderPageViewModel">
+
+    <Grid Margin="28" RowDefinitions="Auto,*">
+        <StackPanel Grid.Row="0" Spacing="4">
+            <TextBlock Text="{Binding Title}" Classes="h1"/>
+            <TextBlock Text="{Binding Description}" Classes="muted"/>
+        </StackPanel>
+
+        <Border Grid.Row="1" Classes="card" MaxWidth="480" Padding="34"
+                HorizontalAlignment="Center" VerticalAlignment="Center">
+            <StackPanel Spacing="14" HorizontalAlignment="Center">
+                <Border Width="56" Height="56" CornerRadius="28" Background="{DynamicResource AccentSoft}">
+                    <TextBlock Text="⏳" FontSize="24" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+                </Border>
+                <TextBlock Text="Скоро" Classes="h2" HorizontalAlignment="Center"/>
+                <TextBlock Text="{Binding Note}" Classes="muted" TextWrapping="Wrap" TextAlignment="Center"/>
+            </StackPanel>
+        </Border>
+    </Grid>
+</UserControl>

src/Elfisa.Avalonia/Views/PlaceholderPageView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class PlaceholderPageView : UserControl
+{
+    public PlaceholderPageView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/PriceListView.axaml

@@ -0,0 +1,136 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.PriceListView"
+             x:DataType="vm:PriceListViewModel">
+
+    <DockPanel Margin="24">
+        <Grid DockPanel.Dock="Top" Margin="0,0,0,14" ColumnDefinitions="*,Auto">
+            <StackPanel Grid.Column="0" Spacing="2" VerticalAlignment="Center">
+                <TextBlock Text="Прайс-лист" Classes="h1"/>
+                <TextBlock Text="Каталог позиций — собери заказ и сохрани" Classes="muted"/>
+            </StackPanel>
+            <!-- Мои прайсы: видно, по какому прайсу заказываем; если подключено несколько — можно выбрать -->
+            <Border Grid.Column="1" VerticalAlignment="Center" Padding="12,8" CornerRadius="10"
+                    Background="{DynamicResource Panel}" BorderThickness="1" BorderBrush="{DynamicResource Border}">
+                <StackPanel Orientation="Horizontal" Spacing="10" VerticalAlignment="Center">
+                    <TextBlock Text="Мои прайсы" Classes="label" VerticalAlignment="Center"/>
+                    <ComboBox ItemsSource="{Binding MyPriceLists}" SelectedItem="{Binding SelectedPriceList}"
+                              MinWidth="240" VerticalAlignment="Center"/>
+                </StackPanel>
+            </Border>
+        </Grid>
+
+        <Border DockPanel.Dock="Top" Margin="0,0,0,10" Padding="10,7" CornerRadius="6"
+                Background="{DynamicResource AccentSoft}"
+                IsVisible="{Binding Status, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+            <TextBlock Text="{Binding Status}" Foreground="{DynamicResource AccentPressed}" TextWrapping="Wrap" FontSize="12.5"/>
+        </Border>
+
+        <Grid ColumnDefinitions="*,16,430">
+
+            <!-- Каталог -->
+            <Border Grid.Column="0" Classes="card" Padding="0" ClipToBounds="True">
+                <DockPanel>
+                    <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Spacing="10" Margin="14">
+                        <TextBox Text="{Binding Search}" Width="330" Watermark="поиск по наименованию (от 2 символов)…"/>
+                        <Button Classes="primary" Content="Найти" Command="{Binding SearchCommand}" IsEnabled="{Binding !Busy}"/>
+                    </StackPanel>
+                    <Border DockPanel.Dock="Bottom" Margin="14" Padding="0">
+                        <StackPanel Orientation="Horizontal" Spacing="10" VerticalAlignment="Center">
+                            <TextBlock Text="Кол-во" Classes="label" VerticalAlignment="Center"/>
+                            <NumericUpDown Value="{Binding SelectedOffer.OrderQty}" Minimum="0" Maximum="100000" Increment="1" FormatString="0" Width="120"
+                                           IsEnabled="{Binding SelectedOffer, Converter={x:Static conv:ObjectConverters.IsNotNull}}"/>
+                            <Button Classes="primary" Content="Добавить в заказ ▸" Command="{Binding AddToOrderCommand}"/>
+                            <TextBlock Text="или выдели строку и набери число на клавиатуре, Enter — добавить" Classes="muted" VerticalAlignment="Center" TextWrapping="Wrap" MaxWidth="240"/>
+                        </StackPanel>
+                    </Border>
+                    <!-- Дрилдаун как в старой программе: Название → МГ → Предложения -->
+                    <Grid ColumnDefinitions="1.3*,10,120,10,2.2*" Margin="14,0,14,0">
+
+                        <!-- Название (базовое наименование) -->
+                        <DockPanel Grid.Column="0">
+                            <TextBlock DockPanel.Dock="Top" Text="Название" Classes="label" Margin="2,0,0,5"/>
+                            <ListBox ItemsSource="{Binding BaseNames}" SelectedItem="{Binding SelectedBaseName}"
+                                     BorderThickness="1" BorderBrush="{DynamicResource Border}" CornerRadius="8"/>
+                        </DockPanel>
+
+                        <!-- МГ (дозировка) -->
+                        <DockPanel Grid.Column="2">
+                            <TextBlock DockPanel.Dock="Top" Text="МГ" Classes="label" Margin="2,0,0,5"/>
+                            <ListBox ItemsSource="{Binding MgOptions}" SelectedItem="{Binding SelectedMg}"
+                                     BorderThickness="1" BorderBrush="{DynamicResource Border}" CornerRadius="8"/>
+                        </DockPanel>
+
+                        <!-- Предложения (фильтр: название + МГ) -->
+                        <DockPanel Grid.Column="4">
+                            <TextBlock DockPanel.Dock="Top" Text="Предложения" Classes="label" Margin="2,0,0,5"/>
+                            <DataGrid x:Name="OffersGrid" ItemsSource="{Binding Offers}" SelectedItem="{Binding SelectedOffer}" x:CompileBindings="False"
+                                      AutoGenerateColumns="False" IsReadOnly="True" HeadersVisibility="Column"
+                                      CanUserResizeColumns="True" CanUserSortColumns="False"
+                                      BorderThickness="1" BorderBrush="{DynamicResource Border}" CornerRadius="8">
+                                <DataGrid.Columns>
+                                    <DataGridTextColumn Header="Наименование" Width="*" Binding="{Binding DrugName}"/>
+                                    <DataGridTextColumn Header="Поставщик" Width="140" Binding="{Binding SupplierName}"/>
+                                    <DataGridTextColumn Header="Цена" Width="85" Binding="{Binding Price, StringFormat='{}{0:N2}'}" CellStyleClasses="num"/>
+                                    <DataGridTextColumn Header="Остаток" Width="75" Binding="{Binding Quantity, StringFormat='{}{0:0}'}" CellStyleClasses="num"/>
+                                    <DataGridTextColumn Header="Заказ" Width="70" Binding="{Binding OrderQty, StringFormat='{}{0:0}'}" CellStyleClasses="num"
+                                                        FontWeight="Bold" Foreground="{DynamicResource Accent}"/>
+                                </DataGrid.Columns>
+                            </DataGrid>
+                        </DockPanel>
+                    </Grid>
+                </DockPanel>
+            </Border>
+
+            <!-- Мой заказ -->
+            <Border Grid.Column="2" Classes="card" Padding="16">
+                <DockPanel>
+                    <TextBlock DockPanel.Dock="Top" Text="Мой заказ" Classes="h2" Margin="0,0,0,10"/>
+
+                    <StackPanel DockPanel.Dock="Bottom" Spacing="10" Margin="0,12,0,0">
+                        <StackPanel Spacing="5">
+                            <TextBlock Text="Грузополучатель" Classes="muted"/>
+                            <ComboBox ItemsSource="{Binding Locations}" SelectedItem="{Binding SelectedLocation}" HorizontalAlignment="Stretch"/>
+                        </StackPanel>
+                        <TextBox Text="{Binding Comment}" Watermark="комментарий (необязательно)"/>
+                        <Grid ColumnDefinitions="*,Auto">
+                            <TextBlock Grid.Column="0" Text="Итого" FontWeight="SemiBold" VerticalAlignment="Center" Foreground="{DynamicResource Text}"/>
+                            <TextBlock Grid.Column="1" Text="{Binding CartTotal, StringFormat='{}{0:N2}'}" FontWeight="Bold" FontSize="16" Foreground="{DynamicResource Accent}"/>
+                        </Grid>
+                        <Button Classes="primary" Content="Сохранить заказ" HorizontalAlignment="Stretch" Command="{Binding SaveDraftCommand}"/>
+                        <TextBlock Text="Черновик появится в «Заказы» со статусом «Не отправлен»." Classes="muted" TextWrapping="Wrap"/>
+                    </StackPanel>
+
+                    <ScrollViewer>
+                        <ItemsControl ItemsSource="{Binding Cart}" x:CompileBindings="False">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate x:DataType="vm:CartItem">
+                                    <Border Padding="10" Margin="0,0,0,8" CornerRadius="9"
+                                            Background="{DynamicResource RowAlt}" BorderThickness="1" BorderBrush="{DynamicResource Border}">
+                                        <DockPanel>
+                                            <Button DockPanel.Dock="Right" Content="✕" Width="30" Height="30" Padding="0"
+                                                    VerticalAlignment="Top" Background="Transparent" Foreground="{DynamicResource Muted}" Cursor="Hand"
+                                                    Command="{Binding $parent[ItemsControl].DataContext.RemoveFromCartCommand}"
+                                                    CommandParameter="{Binding}"/>
+                                            <StackPanel Spacing="6">
+                                                <TextBlock Text="{Binding Name}" Foreground="{DynamicResource Text}" TextWrapping="Wrap" MaxLines="2" TextTrimming="CharacterEllipsis"/>
+                                                <TextBlock Text="{Binding Supplier}" Classes="muted"/>
+                                                <Grid ColumnDefinitions="Auto,*,Auto" VerticalAlignment="Center">
+                                                    <NumericUpDown Grid.Column="0" Value="{Binding Qty}" Minimum="1" Maximum="100000" Increment="1" FormatString="0" Width="120"/>
+                                                    <TextBlock Grid.Column="1" Text="{Binding Price, StringFormat='× {0:N2}'}" Classes="muted" VerticalAlignment="Center" Margin="10,0"/>
+                                                    <TextBlock Grid.Column="2" Text="{Binding LineSum, StringFormat='{}{0:N2}'}" FontWeight="SemiBold" Foreground="{DynamicResource Text}" VerticalAlignment="Center"/>
+                                                </Grid>
+                                            </StackPanel>
+                                        </DockPanel>
+                                    </Border>
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </ScrollViewer>
+                </DockPanel>
+            </Border>
+        </Grid>
+    </DockPanel>
+</UserControl>

src/Elfisa.Avalonia/Views/PriceListView.axaml.cs

@@ -0,0 +1,58 @@
+using System;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Markup.Xaml;
+using Elfisa.Avalonia.ViewModels;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class PriceListView : UserControl
+{
+    // Строка, в которую сейчас набирают количество с клавиатуры (для многозначного ввода).
+    private OfferRow? _typingRow;
+
+    public PriceListView()
+    {
+        AvaloniaXamlLoader.Load(this);
+        var grid = this.FindControl<DataGrid>("OffersGrid");
+        if (grid != null) grid.KeyDown += OffersGrid_KeyDown;
+    }
+
+    // Выделил предложение → набираешь число цифрами (как колонка «Заказ» в старой программе).
+    // Backspace — стереть цифру, Enter — добавить в заказ.
+    private void OffersGrid_KeyDown(object? sender, KeyEventArgs e)
+    {
+        if (sender is not DataGrid grid || grid.SelectedItem is not OfferRow row) return;
+
+        var digit = DigitFromKey(e.Key);
+        if (digit >= 0)
+        {
+            if (!ReferenceEquals(_typingRow, row)) { row.OrderQty = 0; _typingRow = row; }
+            var next = row.OrderQty * 10 + digit;
+            if (next <= 100000) row.OrderQty = next;
+            e.Handled = true;
+            return;
+        }
+
+        switch (e.Key)
+        {
+            case Key.Back:
+                row.OrderQty = Math.Floor(row.OrderQty / 10);
+                _typingRow = row;
+                e.Handled = true;
+                break;
+            case Key.Enter:
+                (DataContext as PriceListViewModel)?.AddSelectedOffer();
+                _typingRow = null;
+                e.Handled = true;
+                break;
+        }
+    }
+
+    private static int DigitFromKey(Key k)
+    {
+        if (k >= Key.D0 && k <= Key.D9) return k - Key.D0;
+        if (k >= Key.NumPad0 && k <= Key.NumPad9) return k - Key.NumPad0;
+        return -1;
+    }
+}

src/Elfisa.Avalonia/Views/ReportsView.axaml

@@ -0,0 +1,58 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.ReportsView"
+             x:DataType="vm:ReportsViewModel">
+
+    <DockPanel Margin="24">
+
+        <!-- Заголовок -->
+        <Grid DockPanel.Dock="Top" Margin="0,0,0,14">
+            <StackPanel Spacing="2" VerticalAlignment="Center">
+                <TextBlock Text="Отчёты" Classes="h1"/>
+                <TextBlock Text="Данные только по вашим заказам" Classes="muted"/>
+            </StackPanel>
+            <TextBlock Text="{Binding Totals}" HorizontalAlignment="Right" VerticalAlignment="Center"
+                       FontWeight="SemiBold" Foreground="{DynamicResource Accent}"/>
+        </Grid>
+
+        <!-- Панель управления -->
+        <Border DockPanel.Dock="Top" Classes="card" Margin="0,0,0,12" Padding="16">
+            <StackPanel Spacing="12">
+                <WrapPanel Orientation="Horizontal">
+                    <TextBlock Text="С" Classes="label" Margin="0,0,8,6"/>
+                    <DatePicker SelectedDate="{Binding DateFrom}" Margin="0,0,10,6"/>
+                    <TextBlock Text="по" Classes="label" Margin="0,0,8,6"/>
+                    <DatePicker SelectedDate="{Binding DateTo}" Margin="0,0,10,6"/>
+                    <ComboBox ItemsSource="{Binding ReportTypes}" SelectedIndex="{Binding SelectedReportIndex}" Width="170" Margin="0,0,10,6"/>
+                    <Button Classes="primary" Content="Сформировать" Command="{Binding BuildCommand}" IsEnabled="{Binding !Busy}" Margin="0,0,0,6"/>
+                </WrapPanel>
+
+                <Border Height="1" Background="{DynamicResource Border}"/>
+
+                <WrapPanel Orientation="Horizontal">
+                    <TextBlock Text="Запрос ИИ" Classes="label" Margin="0,0,8,6"/>
+                    <TextBox Text="{Binding AiPrompt}" Width="420" Margin="0,0,10,6"
+                             Watermark="напр.: «закупки по поставщикам за июль», «заказы за всё время с товарами»"/>
+                    <ComboBox ItemsSource="{Binding AiFormats}" SelectedIndex="{Binding SelectedAiFormat}" Width="100" Margin="0,0,10,6"/>
+                    <Button Classes="primary" Content="Сформировать ИИ" Command="{Binding GenerateAiCommand}" IsEnabled="{Binding !AiBusy}" Margin="0,0,0,6"/>
+                </WrapPanel>
+            </StackPanel>
+        </Border>
+
+        <!-- Статус -->
+        <Border DockPanel.Dock="Top" Margin="0,0,0,10" Padding="10,7" CornerRadius="6"
+                Background="{DynamicResource AccentSoft}"
+                IsVisible="{Binding Status, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+            <TextBlock Text="{Binding Status}" Foreground="{DynamicResource AccentPressed}" TextWrapping="Wrap" FontSize="12.5"/>
+        </Border>
+
+        <!-- Таблица -->
+        <Border Classes="card" Padding="0" ClipToBounds="True">
+            <DataGrid x:Name="Grid" ItemsSource="{Binding Rows}"
+                      AutoGenerateColumns="False" IsReadOnly="True"
+                      HeadersVisibility="Column" CanUserResizeColumns="True" CanUserSortColumns="False"/>
+        </Border>
+    </DockPanel>
+</UserControl>

src/Elfisa.Avalonia/Views/ReportsView.axaml.cs

@@ -0,0 +1,60 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Templates;
+using Avalonia.Layout;
+using Avalonia.Media;
+using Elfisa.Avalonia.ViewModels;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class ReportsView : UserControl
+{
+    private ReportsViewModel? _vm;
+
+    public ReportsView()
+    {
+        InitializeComponent();
+        DataContextChanged += OnDataContextChanged;
+    }
+
+    private void OnDataContextChanged(object? sender, EventArgs e)
+    {
+        if (_vm != null) _vm.ColumnsChanged -= RebuildColumns;
+        _vm = DataContext as ReportsViewModel;
+        if (_vm != null)
+        {
+            _vm.ColumnsChanged += RebuildColumns;
+            RebuildColumns();
+        }
+    }
+
+    // DataGrid не умеет динамические колонки через биндинг — строим их из VM в коде.
+    private void RebuildColumns()
+    {
+        Grid.Columns.Clear();
+        if (_vm == null) return;
+
+        for (int i = 0; i < _vm.Columns.Count; i++)
+        {
+            int idx = i;
+            var c = _vm.Columns[i];
+            Grid.Columns.Add(new DataGridTemplateColumn
+            {
+                Header = c.Header,
+                // одна тянущаяся колонка (star) заполняет свободное место, остальные фикс. пиксель
+                Width = c.Stretch
+                    ? new DataGridLength(1, DataGridLengthUnitType.Star)
+                    : new DataGridLength(c.Weight, DataGridLengthUnitType.Pixel),
+                MinWidth = 56,
+                CellTemplate = new FuncDataTemplate<ReportRow>((row, _) => new TextBlock
+                {
+                    Text = row?[idx] ?? "",
+                    VerticalAlignment = VerticalAlignment.Center,
+                    TextAlignment = c.Numeric ? TextAlignment.Right : TextAlignment.Left,
+                    TextTrimming = TextTrimming.CharacterEllipsis
+                })
+            });
+        }
+    }
+}

src/Elfisa.Avalonia/Views/SendOrderView.axaml

@@ -0,0 +1,104 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             xmlns:conv="using:Avalonia.Data.Converters"
+             x:Class="Elfisa.Avalonia.Views.SendOrderView"
+             x:DataType="vm:SendOrderViewModel">
+
+    <DockPanel Margin="24">
+        <Grid DockPanel.Dock="Top" Margin="0,0,0,14">
+            <StackPanel Spacing="2" VerticalAlignment="Center">
+                <TextBlock Text="Отправить заказ" Classes="h1"/>
+                <TextBlock Text="Найдите позиции в прайсе, соберите корзину и отправьте поставщику" Classes="muted"/>
+            </StackPanel>
+        </Grid>
+
+        <Border DockPanel.Dock="Bottom" Margin="0,10,0,0" Padding="10,7" CornerRadius="6"
+                Background="{DynamicResource AccentSoft}"
+                IsVisible="{Binding Status, Converter={x:Static conv:ObjectConverters.IsNotNull}}">
+            <TextBlock Text="{Binding Status}" Foreground="{DynamicResource AccentPressed}" TextWrapping="Wrap" FontSize="12.5"/>
+        </Border>
+
+        <Grid ColumnDefinitions="*,16,440">
+
+            <!-- Прайс: поиск + результаты -->
+            <Border Grid.Column="0" Classes="card" Padding="0" ClipToBounds="True">
+                <DockPanel>
+                    <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Spacing="10" Margin="14">
+                        <TextBox Text="{Binding Search}" Width="330" Watermark="поиск по наименованию…"/>
+                        <Button Classes="primary" Content="Найти" Command="{Binding SearchCommand}" IsEnabled="{Binding !Busy}"/>
+                    </StackPanel>
+                    <Button DockPanel.Dock="Bottom" Classes="primary" Content="Добавить в заказ ▸"
+                            Margin="14" HorizontalAlignment="Left"
+                            Command="{Binding AddToCartCommand}"/>
+                    <DataGrid ItemsSource="{Binding Results}" SelectedItem="{Binding SelectedResult}"
+                              x:CompileBindings="False" AutoGenerateColumns="False" IsReadOnly="True"
+                              HeadersVisibility="Column" CanUserResizeColumns="True" CanUserSortColumns="False">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Header="Наименование" Width="*" Binding="{Binding DrugName}"/>
+                            <DataGridTextColumn Header="Поставщик" Width="120" Binding="{Binding SupplierName}"/>
+                            <DataGridTextColumn Header="Цена" Width="100" Binding="{Binding Price, StringFormat='{}{0:N2}'}" CellStyleClasses="num"/>
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </DockPanel>
+            </Border>
+
+            <!-- Корзина -->
+            <Border Grid.Column="2" Classes="card" Padding="16">
+                <DockPanel>
+                    <TextBlock DockPanel.Dock="Top" Text="Корзина" Classes="h2" Margin="0,0,0,10"/>
+
+                    <StackPanel DockPanel.Dock="Bottom" Spacing="10" Margin="0,12,0,0">
+                        <StackPanel Spacing="5">
+                            <TextBlock Text="Грузополучатель" Classes="muted"/>
+                            <ComboBox ItemsSource="{Binding Locations}" SelectedItem="{Binding SelectedLocation}"
+                                      HorizontalAlignment="Stretch"/>
+                        </StackPanel>
+                        <TextBox Text="{Binding Comment}" Watermark="комментарий к заказу (необязательно)"/>
+                        <Grid ColumnDefinitions="*,Auto">
+                            <TextBlock Grid.Column="0" Text="Итого" FontWeight="SemiBold" VerticalAlignment="Center"
+                                       Foreground="{DynamicResource Text}"/>
+                            <TextBlock Grid.Column="1" Text="{Binding CartTotal, StringFormat='{}{0:N2}'}"
+                                       FontWeight="Bold" FontSize="16" Foreground="{DynamicResource Accent}"/>
+                        </Grid>
+                        <Button Classes="primary" Content="Отправить заказ" HorizontalAlignment="Stretch"
+                                Command="{Binding SendCommand}" IsEnabled="{Binding !Busy}"/>
+                    </StackPanel>
+
+                    <ScrollViewer>
+                        <ItemsControl ItemsSource="{Binding Cart}" x:CompileBindings="False">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate x:DataType="vm:CartItem">
+                                    <Border Padding="10" Margin="0,0,0,8" CornerRadius="9"
+                                            Background="{DynamicResource RowAlt}" BorderThickness="1" BorderBrush="{DynamicResource Border}">
+                                        <DockPanel>
+                                            <Button DockPanel.Dock="Right" Content="✕" Width="30" Height="30" Padding="0"
+                                                    VerticalAlignment="Top" Background="Transparent"
+                                                    Foreground="{DynamicResource Muted}" Cursor="Hand"
+                                                    Command="{Binding $parent[ItemsControl].DataContext.RemoveFromCartCommand}"
+                                                    CommandParameter="{Binding}"/>
+                                            <StackPanel Spacing="6">
+                                                <TextBlock Text="{Binding Name}" Foreground="{DynamicResource Text}"
+                                                           TextWrapping="Wrap" MaxLines="2" TextTrimming="CharacterEllipsis"/>
+                                                <TextBlock Text="{Binding Supplier}" Classes="muted"/>
+                                                <Grid ColumnDefinitions="Auto,*,Auto" VerticalAlignment="Center">
+                                                    <NumericUpDown Grid.Column="0" Value="{Binding Qty}" Minimum="1" Maximum="100000"
+                                                                   Increment="1" FormatString="0" Width="120"/>
+                                                    <TextBlock Grid.Column="1" Text="{Binding Price, StringFormat='× {0:N2}'}"
+                                                               Classes="muted" VerticalAlignment="Center" Margin="10,0"/>
+                                                    <TextBlock Grid.Column="2" Text="{Binding LineSum, StringFormat='{}{0:N2}'}"
+                                                               FontWeight="SemiBold" Foreground="{DynamicResource Text}"
+                                                               VerticalAlignment="Center"/>
+                                                </Grid>
+                                            </StackPanel>
+                                        </DockPanel>
+                                    </Border>
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </ScrollViewer>
+                </DockPanel>
+            </Border>
+        </Grid>
+    </DockPanel>
+</UserControl>

src/Elfisa.Avalonia/Views/SendOrderView.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class SendOrderView : UserControl
+{
+    public SendOrderView() => AvaloniaXamlLoader.Load(this);
+}

src/Elfisa.Avalonia/Views/SettingsWindow.axaml

@@ -0,0 +1,34 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+        x:Class="Elfisa.Avalonia.Views.SettingsWindow"
+        x:DataType="vm:SettingsViewModel"
+        Width="460" Height="360" CanResize="False"
+        WindowStartupLocation="CenterOwner"
+        Background="{DynamicResource Bg}"
+        Title="Настройки">
+
+    <StackPanel Margin="24" Spacing="16">
+        <TextBlock Text="Настройки" Classes="h1"/>
+
+        <StackPanel Spacing="6">
+            <TextBlock Text="Адрес сервера (API)" Classes="label"/>
+            <TextBox Text="{Binding ApiBaseUrl}" Watermark="https://24pharmdata.ru"/>
+        </StackPanel>
+
+        <StackPanel Spacing="6">
+            <TextBlock Text="Тема" Classes="label"/>
+            <ComboBox ItemsSource="{Binding Themes}" SelectedIndex="{Binding ThemeIndex}" HorizontalAlignment="Stretch"/>
+        </StackPanel>
+
+        <StackPanel Spacing="6">
+            <TextBlock Text="Грузополучатель по умолчанию" Classes="label"/>
+            <ComboBox ItemsSource="{Binding Locations}" SelectedItem="{Binding SelectedLocation}" HorizontalAlignment="Stretch"/>
+        </StackPanel>
+
+        <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Spacing="10" Margin="0,8,0,0">
+            <Button Content="Отмена" Click="OnCancel" Padding="18,9"/>
+            <Button Classes="primary" Content="Сохранить" Click="OnSave"/>
+        </StackPanel>
+    </StackPanel>
+</Window>

src/Elfisa.Avalonia/Views/SettingsWindow.axaml.cs

@@ -0,0 +1,31 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using Avalonia.Styling;
+using Elfisa.Avalonia.ViewModels;
+using Elfisa.Core;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class SettingsWindow : Window
+{
+    public SettingsWindow() => AvaloniaXamlLoader.Load(this);
+
+    private void OnSave(object? sender, RoutedEventArgs e)
+    {
+        if (DataContext is SettingsViewModel vm)
+        {
+            SettingsStore.Current.ApiBaseUrl = string.IsNullOrWhiteSpace(vm.ApiBaseUrl) ? null : vm.ApiBaseUrl.Trim().TrimEnd('/');
+            SettingsStore.Current.Theme = vm.ThemeIndex == 1 ? "Dark" : "Light";
+            SettingsStore.Current.DefaultLocationId = vm.SelectedLocation?.BuyerLocationId;
+            SettingsStore.Save();
+
+            if (Application.Current is { } app)
+                app.RequestedThemeVariant = vm.ThemeIndex == 1 ? ThemeVariant.Dark : ThemeVariant.Light;
+        }
+        Close();
+    }
+
+    private void OnCancel(object? sender, RoutedEventArgs e) => Close();
+}

src/Elfisa.Avalonia/Views/ShellView.axaml

@@ -0,0 +1,95 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:vm="using:Elfisa.Avalonia.ViewModels"
+             x:Class="Elfisa.Avalonia.Views.ShellView"
+             x:DataType="vm:ShellViewModel">
+
+    <DockPanel>
+
+        <!-- Верхняя панель навигации -->
+        <Border DockPanel.Dock="Top" Background="{DynamicResource Sidebar}" Height="82">
+            <Grid ColumnDefinitions="Auto,*,Auto" Margin="18,0">
+
+                <StackPanel Grid.Column="0" VerticalAlignment="Center" Margin="0,0,14,0">
+                    <TextBlock Text="ЭльФиСА" FontSize="18" FontWeight="Bold" Foreground="White"/>
+                    <TextBlock Text="Электронная Фармация" Foreground="{DynamicResource SidebarText}" FontSize="10"/>
+                </StackPanel>
+
+                <ListBox Grid.Column="1" Classes="topnav" VerticalAlignment="Center" HorizontalAlignment="Left"
+                         ItemsSource="{Binding NavItems}" SelectedItem="{Binding SelectedNav}">
+                    <ListBox.ItemsPanel>
+                        <ItemsPanelTemplate>
+                            <StackPanel Orientation="Horizontal"/>
+                        </ItemsPanelTemplate>
+                    </ListBox.ItemsPanel>
+                    <ListBox.ItemTemplate>
+                        <DataTemplate x:DataType="vm:NavItem">
+                            <StackPanel Orientation="Vertical" Width="66" Spacing="3">
+                                <TextBlock Text="{Binding Icon}" FontFamily="Segoe MDL2 Assets" FontSize="18"
+                                           Foreground="White" HorizontalAlignment="Center"/>
+                                <TextBlock Text="{Binding Title}" Foreground="{DynamicResource SidebarText}"
+                                           FontSize="11" HorizontalAlignment="Center" TextTrimming="CharacterEllipsis"/>
+                            </StackPanel>
+                        </DataTemplate>
+                    </ListBox.ItemTemplate>
+                </ListBox>
+
+                <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="12" VerticalAlignment="Center" Margin="8,0,0,0">
+                    <StackPanel VerticalAlignment="Center">
+                        <TextBlock Text="{Binding UserName}" Foreground="White" FontSize="12" FontWeight="SemiBold"
+                                   HorizontalAlignment="Right" TextTrimming="CharacterEllipsis"/>
+                        <TextBlock Text="{Binding RoleLabel}" Foreground="{DynamicResource SidebarText}"
+                                   FontSize="10.5" HorizontalAlignment="Right"/>
+                    </StackPanel>
+                    <Button Content="Выйти" Command="{Binding LogoutCommand}"
+                            Background="Transparent" Foreground="White" BorderBrush="#55FFFFFF"
+                            BorderThickness="1" CornerRadius="8" Padding="16,9" Cursor="Hand"/>
+                </StackPanel>
+            </Grid>
+        </Border>
+
+        <!-- Строка вкладок-документов -->
+        <Border DockPanel.Dock="Top" Background="{DynamicResource Surface}"
+                BorderBrush="{DynamicResource Border}" BorderThickness="0,0,0,1" MinHeight="44" Padding="10,0">
+            <ListBox Classes="tabs" VerticalAlignment="Center" x:CompileBindings="False"
+                     ItemsSource="{Binding Tabs}" SelectedItem="{Binding ActiveTab}">
+                <ListBox.ItemsPanel>
+                    <ItemsPanelTemplate>
+                        <StackPanel Orientation="Horizontal"/>
+                    </ItemsPanelTemplate>
+                </ListBox.ItemsPanel>
+                <ListBox.ItemTemplate>
+                    <DataTemplate x:DataType="vm:DocumentTab">
+                        <StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
+                            <TextBlock Text="{Binding Title}" VerticalAlignment="Center" FontSize="13"/>
+                            <Button Content="✕" FontSize="11" Width="20" Height="20" Padding="0"
+                                    Background="Transparent" BorderThickness="0" Cursor="Hand"
+                                    Foreground="{DynamicResource Muted}"
+                                    Command="{Binding $parent[ListBox].DataContext.CloseTabCommand}"
+                                    CommandParameter="{Binding}"/>
+                        </StackPanel>
+                    </DataTemplate>
+                </ListBox.ItemTemplate>
+            </ListBox>
+        </Border>
+
+        <!-- Нижняя строка состояния -->
+        <Border DockPanel.Dock="Bottom" Background="{DynamicResource Surface}"
+                BorderBrush="{DynamicResource Border}" BorderThickness="0,1,0,0" Height="32" Padding="16,0">
+            <Grid ColumnDefinitions="*,Auto">
+                <StackPanel Grid.Column="0" Orientation="Horizontal" Spacing="6" VerticalAlignment="Center">
+                    <TextBlock Text="Пользователь:" Classes="muted" FontSize="12"/>
+                    <TextBlock Text="{Binding UserName}" FontSize="12" Foreground="{DynamicResource Text}"/>
+                    <TextBlock Text="   |   Аптека:" Classes="muted" FontSize="12"/>
+                    <TextBlock Text="{Binding PharmacyAddress}" FontSize="12" Foreground="{DynamicResource Text}" TextTrimming="CharacterEllipsis"/>
+                </StackPanel>
+                <Button Grid.Column="1" Content="Настройки" Click="OnSettingsClick"
+                        Background="Transparent" Foreground="{DynamicResource Accent}" BorderThickness="0"
+                        Padding="10,4" FontSize="12.5" Cursor="Hand"/>
+            </Grid>
+        </Border>
+
+        <!-- Контент активной вкладки -->
+        <ContentControl Content="{Binding ActiveTab.Content}"/>
+    </DockPanel>
+</UserControl>

src/Elfisa.Avalonia/Views/ShellView.axaml.cs

@@ -0,0 +1,21 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using Elfisa.Avalonia.ViewModels;
+
+namespace Elfisa.Avalonia.Views;
+
+public partial class ShellView : UserControl
+{
+    public ShellView() => AvaloniaXamlLoader.Load(this);
+
+    private async void OnSettingsClick(object? sender, RoutedEventArgs e)
+    {
+        var win = new SettingsWindow { DataContext = new SettingsViewModel() };
+        var owner = (Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime)?.MainWindow;
+        if (owner is not null) await win.ShowDialog(owner);
+        else win.Show();
+    }
+}

src/Elfisa.Avalonia/app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embedded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="Elfisa.Avalonia.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>

src/Elfisa.Core/ApiClient.cs

@@ -0,0 +1,195 @@
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Text.Json;
+
+namespace Elfisa.Core;
+
+/// <summary>
+/// Клиент платформы. Портирован из WinForms-версии, оставлены методы,
+/// нужные новому Avalonia-клиенту: логин, отчёт покупателя, ИИ-отчёт.
+/// Остальные эндпоинты добавляются по мере портирования экранов.
+/// </summary>
+public sealed class ApiClient
+{
+    private static readonly JsonSerializerOptions Json = new() { PropertyNamingPolicy = null };
+
+    private readonly HttpClient _http;
+    private readonly string _baseUrl;
+    private string? _token;
+
+    public ApiClient(string? baseUrl = null)
+    {
+        _baseUrl = (baseUrl ?? AppConfig.ApiBaseUrl).TrimEnd('/');
+        _http = new HttpClient { Timeout = TimeSpan.FromSeconds(120) };
+    }
+
+    public string BaseUrl => _baseUrl;
+    public string? Token => _token;
+    public bool IsAuthenticated => !string.IsNullOrEmpty(_token);
+
+    public void SetToken(string? token) => _token = string.IsNullOrWhiteSpace(token) ? null : token;
+
+    private string Url(string path) => new Uri(new Uri(_baseUrl + "/"), path.TrimStart('/')).ToString();
+
+    /// <summary>Логин. Возвращает (token, role) либо бросает с понятным сообщением.</summary>
+    public async Task<LoginResponse> LoginAsync(string username, string password)
+    {
+        var body = JsonSerializer.Serialize(new LoginRequest { Username = username, Password = password }, Json);
+        using var req = new HttpRequestMessage(HttpMethod.Post, Url("/auth/login"))
+        {
+            Content = new StringContent(body, Encoding.UTF8, "application/json")
+        };
+        HttpResponseMessage resp;
+        try { resp = await _http.SendAsync(req).ConfigureAwait(false); }
+        catch (Exception ex) { throw new ApiException($"Не удалось связаться с сервером ({_baseUrl}): {ex.Message}", ex); }
+
+        var text = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
+        if (resp.StatusCode == HttpStatusCode.Unauthorized)
+            throw new ApiException("Неверный логин или пароль.");
+        if (resp.StatusCode == (HttpStatusCode)429)
+            throw new ApiException("Слишком много запросов. Подождите немного и повторите.");
+        if (!resp.IsSuccessStatusCode)
+            throw new ApiException(TryError(text) ?? $"Ошибка авторизации ({(int)resp.StatusCode}).");
+
+        var login = JsonSerializer.Deserialize<LoginResponse>(text, Json);
+        if (login is null || string.IsNullOrWhiteSpace(login.Token))
+            throw new ApiException("Сервер вернул пустой токен.");
+        _token = login.Token;
+        return login;
+    }
+
+    /// <summary>Отчёт покупателя за период (скоуп по JWT на сервере — только свои заказы).</summary>
+    public async Task<List<BuyerReportLineDto>> GetBuyerReportAsync(DateTime from, DateTime to)
+    {
+        EnsureAuth();
+        var path = $"/api/buyer/report?date_from={from:yyyy-MM-dd}&date_to={to:yyyy-MM-dd}";
+        var text = await AuthorizedGetAsync(path, "формирование отчёта").ConfigureAwait(false);
+        var resp = JsonSerializer.Deserialize<BuyerReportResponse>(text, Json);
+        return resp?.Lines ?? new List<BuyerReportLineDto>();
+    }
+
+    /// <summary>Свободный запрос к ИИ -> готовый Word/Excel (сервис на Mac mini через /ai).</summary>
+    public async Task<AiReportResult> GenerateAiReportAsync(string prompt, string format = "docx")
+    {
+        EnsureAuth();
+        if (string.IsNullOrWhiteSpace(prompt)) throw new ApiException("Пустой запрос для ИИ.");
+        var aiUrl = new Uri(new Uri(AppConfig.AiBaseUrl.TrimEnd('/') + "/"), "generate").ToString();
+        var body = JsonSerializer.Serialize(new AiReportRequest { Prompt = prompt, Token = _token!, Format = format }, Json);
+        using var req = new HttpRequestMessage(HttpMethod.Post, aiUrl)
+        {
+            Content = new StringContent(body, Encoding.UTF8, "application/json")
+        };
+        HttpResponseMessage resp;
+        try { resp = await _http.SendAsync(req).ConfigureAwait(false); }
+        catch (Exception ex) { throw new ApiException($"ИИ-сервис недоступен: {ex.Message}", ex); }
+
+        if (!resp.IsSuccessStatusCode)
+        {
+            var err = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
+            throw new ApiException($"ИИ-сервис вернул {(int)resp.StatusCode}: {TryError(err) ?? err}");
+        }
+        var bytes = await resp.Content.ReadAsByteArrayAsync().ConfigureAwait(false);
+        var name = resp.Content.Headers.ContentDisposition?.FileNameStar
+                   ?? resp.Content.Headers.ContentDisposition?.FileName
+                   ?? (format == "xlsx" ? "Отчёт.xlsx" : "Отчёт.docx");
+        return new AiReportResult { Content = bytes, FileName = name.Trim('"') };
+    }
+
+    /// <summary>Сводный прайс (то же, что грузит WinForms-десктоп). Поиск по q (от 2 символов).</summary>
+    public async Task<PriceSummaryResponse> GetPriceSummaryAsync(string? q = null, int limit = 200, int offset = 0, string? priceListId = null)
+    {
+        EnsureAuth();
+        var path = $"/api/supplier-prices/summary?limit={limit}&offset={offset}";
+        if (!string.IsNullOrWhiteSpace(q) && q.Trim().Length >= 2)
+            path += "&q=" + Uri.EscapeDataString(q.Trim());
+        if (!string.IsNullOrWhiteSpace(priceListId))
+            path += "&price_list_id=" + Uri.EscapeDataString(priceListId);
+        var text = await AuthorizedGetAsync(path, "загрузку прайса").ConfigureAwait(false);
+        return JsonSerializer.Deserialize<PriceSummaryResponse>(text, Json) ?? new PriceSummaryResponse();
+    }
+
+    /// <summary>Прайс-листы, подключённые текущему покупателю (для выбора «Мои прайсы»).</summary>
+    public async Task<List<BuyerPriceListDto>> GetBuyerPriceListsAsync()
+    {
+        EnsureAuth();
+        var text = await AuthorizedGetAsync("/api/buyer/price-lists", "загрузку прайсов").ConfigureAwait(false);
+        try { return JsonSerializer.Deserialize<List<BuyerPriceListDto>>(text, Json) ?? new(); }
+        catch { return new(); }
+    }
+
+    /// <summary>Создаёт заказ (Placed). ВНИМАНИЕ: создаёт реальный заказ у поставщика.</summary>
+    public async Task<BuyerOrderResponse> CreateOrderAsync(BuyerOrderCreateRequest request)
+    {
+        EnsureAuth();
+        if (request.Items.Count == 0) throw new ApiException("Корзина пуста.");
+        var body = JsonSerializer.Serialize(request, Json);
+        using var req = new HttpRequestMessage(HttpMethod.Post, Url("/api/buyer/orders"))
+        {
+            Content = new StringContent(body, Encoding.UTF8, "application/json")
+        };
+        req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _token);
+        HttpResponseMessage resp;
+        try { resp = await _http.SendAsync(req).ConfigureAwait(false); }
+        catch (Exception ex) { throw new ApiException($"Не удалось отправить заказ: {ex.Message}", ex); }
+
+        var text = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
+        if (resp.StatusCode == HttpStatusCode.Unauthorized) { _token = null; throw new ApiException("Сессия истекла, войдите снова."); }
+        if (!resp.IsSuccessStatusCode) throw new ApiException(TryError(text) ?? $"Ошибка создания заказа ({(int)resp.StatusCode}).");
+        return JsonSerializer.Deserialize<BuyerOrderResponse>(text, Json) ?? new BuyerOrderResponse();
+    }
+
+    /// <summary>Резервирует следующий номер заказа EX-####### (как в WinForms до создания заказа).</summary>
+    public async Task<string?> NextGlobalSignAsync()
+    {
+        EnsureAuth();
+        var text = await AuthorizedGetAsync("/api/buyer/global-sign/next", "резервирование номера").ConfigureAwait(false);
+        try
+        {
+            using var doc = JsonDocument.Parse(text);
+            return doc.RootElement.TryGetProperty("global_sign", out var v) ? v.GetString() : null;
+        }
+        catch { return null; }
+    }
+
+    /// <summary>Адреса-грузополучатели покупателя.</summary>
+    public async Task<List<BuyerLocationDto>> GetBuyerLocationsAsync()
+    {
+        EnsureAuth();
+        var text = await AuthorizedGetAsync("/api/buyer/locations", "загрузку грузополучателей").ConfigureAwait(false);
+        try { return JsonSerializer.Deserialize<List<BuyerLocationDto>>(text, Json) ?? new(); }
+        catch { return new(); }
+    }
+
+    private async Task<string> AuthorizedGetAsync(string path, string op)
+    {
+        using var req = new HttpRequestMessage(HttpMethod.Get, Url(path));
+        req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", _token);
+        HttpResponseMessage resp;
+        try { resp = await _http.SendAsync(req).ConfigureAwait(false); }
+        catch (Exception ex) { throw new ApiException($"Не удалось выполнить {op}: {ex.Message}", ex); }
+
+        var text = await resp.Content.ReadAsStringAsync().ConfigureAwait(false);
+        if (resp.StatusCode == HttpStatusCode.Unauthorized) { _token = null; throw new ApiException("Сессия истекла, войдите снова."); }
+        if (!resp.IsSuccessStatusCode) throw new ApiException(TryError(text) ?? $"Ошибка сервера ({(int)resp.StatusCode}) при {op}.");
+        return text;
+    }
+
+    private void EnsureAuth()
+    {
+        if (!IsAuthenticated) throw new ApiException("Требуется авторизация.");
+    }
+
+    private static string? TryError(string body)
+    {
+        if (string.IsNullOrWhiteSpace(body)) return null;
+        try { return JsonSerializer.Deserialize<ErrorResponse>(body, Json)?.Error; }
+        catch { return null; }
+    }
+}
+
+public sealed class ApiException : Exception
+{
+    public ApiException(string message, Exception? inner = null) : base(message, inner) { }
+}

src/Elfisa.Core/AppConfig.cs

@@ -0,0 +1,35 @@
+namespace Elfisa.Core;
+
+/// <summary>
+/// Базовые адреса платформы. Совпадают с десктопом WinForms:
+/// API — https://24pharmdata.ru, ИИ-отчёты — https://24pharmdata.ru/ai.
+/// Можно переопределить переменными окружения.
+/// </summary>
+public static class AppConfig
+{
+    public const string DefaultApiBaseUrl = "https://24pharmdata.ru";
+    public const string DefaultAiBaseUrl  = "https://24pharmdata.ru/ai";
+
+    private const string ApiEnv = "ELF_API_BASE_URL";
+    private const string AiEnv  = "ELF_AI_BASE_URL";
+
+    public static string ApiBaseUrl
+    {
+        get
+        {
+            var fromSettings = SettingsStore.Current.ApiBaseUrl;
+            if (!string.IsNullOrWhiteSpace(fromSettings)) return fromSettings.Trim().TrimEnd('/');
+            var env = Environment.GetEnvironmentVariable(ApiEnv);
+            return string.IsNullOrWhiteSpace(env) ? DefaultApiBaseUrl : env.Trim().TrimEnd('/');
+        }
+    }
+
+    public static string AiBaseUrl
+    {
+        get
+        {
+            var env = Environment.GetEnvironmentVariable(AiEnv);
+            return string.IsNullOrWhiteSpace(env) ? DefaultAiBaseUrl : env.Trim().TrimEnd('/');
+        }
+    }
+}

src/Elfisa.Core/DraftStore.cs

@@ -0,0 +1,75 @@
+using System.Text.Json;
+
+namespace Elfisa.Core;
+
+public sealed class DraftItem
+{
+    public string SupplierPriceId { get; set; } = "";
+    public string Name { get; set; } = "";
+    public string Supplier { get; set; } = "";
+    public string? Barcode { get; set; }
+    public decimal Price { get; set; }
+    public decimal Qty { get; set; } = 1;
+    public decimal LineSum => Price * Qty;
+}
+
+public sealed class DraftOrder
+{
+    public string Id { get; set; } = Guid.NewGuid().ToString();
+    public string Number { get; set; } = "";
+    public DateTime CreatedAt { get; set; } = DateTime.Now;
+    public string? LocationId { get; set; }
+    public string? LocationAddress { get; set; }
+    public string? Comment { get; set; }
+    public List<DraftItem> Items { get; set; } = new();
+    public decimal Total => Items.Sum(i => i.LineSum);
+    public int ItemsCount => Items.Count;
+}
+
+/// <summary>Локальные черновики заказов (%APPDATA%\ElfisaAvalonia\drafts.json).</summary>
+public static class DraftStore
+{
+    private sealed class Box { public List<DraftOrder> Drafts { get; set; } = new(); }
+
+    private static readonly string Dir =
+        Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "ElfisaAvalonia");
+    private static readonly string File = Path.Combine(Dir, "drafts.json");
+
+    private static Box _box = Load();
+
+    public static IReadOnlyList<DraftOrder> All => _box.Drafts;
+
+    private static Box Load()
+    {
+        try
+        {
+            if (System.IO.File.Exists(File))
+                return JsonSerializer.Deserialize<Box>(System.IO.File.ReadAllText(File)) ?? new Box();
+        }
+        catch { }
+        return new Box();
+    }
+
+    private static void Save()
+    {
+        try
+        {
+            Directory.CreateDirectory(Dir);
+            System.IO.File.WriteAllText(File, JsonSerializer.Serialize(_box, new JsonSerializerOptions { WriteIndented = true }));
+        }
+        catch { }
+    }
+
+    public static DraftOrder Add(DraftOrder draft)
+    {
+        _box.Drafts.Insert(0, draft);
+        Save();
+        return draft;
+    }
+
+    public static void Remove(string id)
+    {
+        _box.Drafts.RemoveAll(d => d.Id == id);
+        Save();
+    }
+}

src/Elfisa.Core/Dtos.cs

@@ -0,0 +1,121 @@
+using System.Text.Json.Serialization;
+
+namespace Elfisa.Core;
+
+public sealed class LoginRequest
+{
+    [JsonPropertyName("username")] public string Username { get; set; } = "";
+    [JsonPropertyName("password")] public string Password { get; set; } = "";
+}
+
+public sealed class LoginResponse
+{
+    [JsonPropertyName("token")] public string? Token { get; set; }
+    [JsonPropertyName("role")] public string? Role { get; set; }
+    [JsonPropertyName("redirect_url")] public string? RedirectUrl { get; set; }
+}
+
+public sealed class BuyerReportResponse
+{
+    [JsonPropertyName("lines")] public List<BuyerReportLineDto>? Lines { get; set; }
+}
+
+public sealed class BuyerReportLineDto
+{
+    [JsonPropertyName("order_id")] public string? OrderId { get; set; }
+    [JsonPropertyName("global_sign")] public string? GlobalSign { get; set; }
+    [JsonPropertyName("order_date")] public DateTime? OrderDate { get; set; }
+    [JsonPropertyName("status")] public string? Status { get; set; }
+    [JsonPropertyName("supplier")] public string? Supplier { get; set; }
+    [JsonPropertyName("location")] public string? Location { get; set; }
+    [JsonPropertyName("item_name")] public string? ItemName { get; set; }
+    [JsonPropertyName("item_code")] public string? ItemCode { get; set; }
+    [JsonPropertyName("qty")] public decimal Qty { get; set; }
+    [JsonPropertyName("unit_price")] public decimal UnitPrice { get; set; }
+    [JsonPropertyName("sum")] public decimal Sum { get; set; }
+}
+
+public sealed class AiReportRequest
+{
+    [JsonPropertyName("prompt")] public string Prompt { get; set; } = "";
+    [JsonPropertyName("token")] public string Token { get; set; } = "";
+    [JsonPropertyName("format")] public string Format { get; set; } = "docx";
+}
+
+public sealed class AiReportResult
+{
+    public byte[] Content { get; set; } = Array.Empty<byte>();
+    public string FileName { get; set; } = "report.docx";
+}
+
+public sealed class ErrorResponse
+{
+    [JsonPropertyName("error")] public string? Error { get; set; }
+}
+
+public sealed class PriceSummaryResponse
+{
+    [JsonPropertyName("summary")] public List<PriceItem>? Summary { get; set; }
+    [JsonPropertyName("total_drugs")] public int TotalDrugs { get; set; }
+}
+
+public sealed class PriceItem
+{
+    [JsonPropertyName("supplier_price_id")] public string? SupplierPriceId { get; set; }
+    [JsonPropertyName("supplier_name")] public string? SupplierName { get; set; }
+    [JsonPropertyName("drug_name")] public string? DrugName { get; set; }
+    [JsonPropertyName("cure_form")] public string? CureForm { get; set; }
+    [JsonPropertyName("barcode")] public string? Barcode { get; set; }
+    [JsonPropertyName("price")] public decimal Price { get; set; }
+    [JsonPropertyName("quantity")] public decimal Quantity { get; set; }
+    [JsonPropertyName("manufacturer")] public string? Manufacturer { get; set; }
+    [JsonPropertyName("trade_name")] public string? TradeName { get; set; }
+    [JsonPropertyName("es_code")] public long EsCode { get; set; }
+}
+
+public sealed class BuyerLocationDto
+{
+    [JsonPropertyName("buyer_location_id")] public string? BuyerLocationId { get; set; }
+    [JsonPropertyName("address")] public string? Address { get; set; }
+    [JsonPropertyName("region_name")] public string? RegionName { get; set; }
+    [JsonPropertyName("is_default")] public bool IsDefault { get; set; }
+    public override string ToString() => Address ?? "";
+}
+
+/// <summary>Подключённый покупателю прайс-лист («Мои прайсы»).</summary>
+public sealed class BuyerPriceListDto
+{
+    [JsonPropertyName("price_list_id")] public string? PriceListId { get; set; }
+    [JsonPropertyName("name")] public string? Name { get; set; }
+    [JsonPropertyName("supplier_name")] public string? SupplierName { get; set; }
+    [JsonPropertyName("markup_pct")] public double MarkupPct { get; set; }
+    [JsonPropertyName("default_markup_pct")] public double DefaultMarkupPct { get; set; }
+    public override string ToString() =>
+        string.IsNullOrWhiteSpace(SupplierName) ? (Name ?? "Прайс")
+        : $"{Name} · {SupplierName}";
+}
+
+public sealed class BuyerOrderItemReq
+{
+    [JsonPropertyName("supplier_price_id")] public string SupplierPriceId { get; set; } = "";
+    [JsonPropertyName("qty")] public double Qty { get; set; }
+    [JsonPropertyName("item_name")] public string? ItemName { get; set; }
+    [JsonPropertyName("barcode")] public string? Barcode { get; set; }
+}
+
+public sealed class BuyerOrderCreateRequest
+{
+    [JsonPropertyName("location_id")] public string? LocationId { get; set; }
+    [JsonPropertyName("comment")] public string? Comment { get; set; }
+    [JsonPropertyName("global_sign")] public string? GlobalSign { get; set; }
+    [JsonPropertyName("items")] public List<BuyerOrderItemReq> Items { get; set; } = new();
+}
+
+public sealed class BuyerOrderResponse
+{
+    [JsonPropertyName("order_id")] public string? OrderId { get; set; }
+    [JsonPropertyName("status")] public string? Status { get; set; }
+    [JsonPropertyName("global_sign")] public string? GlobalSign { get; set; }
+    [JsonPropertyName("total_amount")] public decimal TotalAmount { get; set; }
+    [JsonPropertyName("items_count")] public int ItemsCount { get; set; }
+}

src/Elfisa.Core/Elfisa.Core.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

src/Elfisa.Core/PriceCache.cs

@@ -0,0 +1,9 @@
+namespace Elfisa.Core;
+
+/// <summary>Загруженный прайс в памяти (наполняется разделом «Загрузить»).</summary>
+public static class PriceCache
+{
+    public static List<PriceItem> Items { get; set; } = new();
+    public static DateTime? LoadedAt { get; set; }
+    public static bool HasData => Items.Count > 0;
+}

src/Elfisa.Core/Session.cs

@@ -0,0 +1,20 @@
+namespace Elfisa.Core;
+
+/// <summary>Текущая сессия пользователя (токен, роль, логин).</summary>
+public sealed class Session
+{
+    public static Session Current { get; } = new();
+
+    public string? Token { get; set; }
+    public string? Role { get; set; }
+    public string? Username { get; set; }
+
+    public bool IsAuthenticated => !string.IsNullOrWhiteSpace(Token);
+
+    public void Clear()
+    {
+        Token = null;
+        Role = null;
+        Username = null;
+    }
+}