docs: add culture management migration warnings for Server/Auto

Prepare for Blazor Server/Auto migration by documenting current
WASM-specific culture initialization approach and providing
detailed migration checklist in COPILOT_CONTEXT.md.

COPILOT_CONTEXT.md

@@ -1,4 +1,4 @@
-# EnvelopeGenerator — AI Context Reference
+# EnvelopeGenerator — AI Context Reference
 
 ## Purpose
 Digital document signing system with **unified Blazor WASM frontend** for both Senders and Receivers. Senders create envelopes and place signature fields. Receivers view PDFs, sign documents, export stamped PDFs.
@@ -65,8 +65,8 @@ Client ? API:8088 (YARP Proxy) ? ReceiverUI:52936 (Blazor WASM)
 - **Backend:** `EnvelopeGenerator.API`
 
 ### Current Architecture
-- **Unified Frontend:** `EnvelopeGenerator.ReceiverUI` (Blazor WASM) — **Both Senders & Receivers**
-- **Backend:** `EnvelopeGenerator.API` — **Both Senders & Receivers**
+- **Unified Frontend:** `EnvelopeGenerator.ReceiverUI` (Blazor WASM) — **Both Senders & Receivers**
+- **Backend:** `EnvelopeGenerator.API` — **Both Senders & Receivers**
 - **Libraries:** DevExpress + PDF.js
 - **PSPDFKit:** **REMOVED**
 
@@ -88,15 +88,80 @@ Client ? API:8088 (YARP Proxy) ? ReceiverUI:52936 (Blazor WASM)
 
 ---
 
+## Localization & Culture Management
+
+**Current Architecture:** Blazor WebAssembly (client-side culture management)
+
+### Implementation Details
+
+**Culture Storage:**
+- Culture preference stored in browser's `localStorage` (key: `AppCulture`)
+- Managed by `CultureService.cs` (ReceiverUI/Services)
+- Supported cultures: `de-DE`, `en-US`, `fr-FR`
+
+**Culture Initialization:**
+- **Location:** `Program.cs` (lines 53-57)
+- Sets `CultureInfo.DefaultThreadCurrentCulture/UICulture` **before** app runs
+- **WASM-Safe:** Each user has isolated browser instance
+
+**Language Selector:**
+- **Component:** `LanguageSelector.razor` (ReceiverUI/Shared)
+- Displays flag icon + language name
+- Changes culture via `CultureService.SetCultureAsync()`
+- Navigates with `forceLoad: false` (smooth transition, no page reload)
+
+### ⚠️ MIGRATION WARNING: Blazor Server/Auto
+
+**Current approach is WASM-specific and will break in Server/Auto render modes!**
+
+**Why it breaks:**
+- `Program.cs:53-57` sets **global** `DefaultThreadCurrentCulture`
+- In Server/Auto, one app instance serves **all users**
+- User A selects German → User B sees German too (shared state)
+- Thread-safety issues and culture conflicts
+
+**Migration Checklist (when moving to Server/Auto):**
+
+1. **Remove global culture initialization** from `Program.cs` (lines 53-57)
+   - See detailed warning comment in the code
+
+2. **Add RequestLocalizationMiddleware** (Server-side approach):
+   ```csharp
+   app.UseRequestLocalization(options => {
+       options.SupportedCultures = new[] { "de-DE", "en-US", "fr-FR" };
+       options.SupportedUICultures = options.SupportedCultures;
+       options.RequestCultureProviders.Insert(0, new CookieRequestCultureProvider());
+   });
+   ```
+
+3. **OR** Use **per-circuit culture** (Blazor Server approach):
+   - Store culture in circuit-scoped service
+   - Use `CascadingParameter` to distribute to components
+   - See: https://learn.microsoft.com/aspnet/core/blazor/globalization-localization
+
+4. **Update `LanguageSelector.razor`:**
+   - Remove manual `CultureInfo.DefaultThreadCurrentCulture` assignment
+   - Use middleware/circuit culture provider instead
+
+5. **Update `CultureService.cs`:**
+   - Integrate with Server-side culture provider
+   - May need to store in cookies instead of localStorage
+
+**References:**
+- Microsoft Docs: [Blazor Globalization/Localization](https://learn.microsoft.com/aspnet/core/blazor/globalization-localization)
+- Current implementation: `Program.cs`, `CultureService.cs`, `LanguageSelector.razor`
+
+---
+
 ## Key Files & Routes
 
 | File | Route/Purpose |
 |---|---|
-| `ReceiverUI/Pages/Index.razor` | `/` — Application entry point (landing page). |
-| `ReceiverUI/Pages/EnvelopeSenderPage.razor` | `/sender` — Sender dashboard (envelope list). |
-| `ReceiverUI/Pages/EnvelopeReceiverPage.razor` | `/envelope/{key}` — Receiver PDF viewer & signing. |
-| `ReceiverUI/Pages/LoginSenderPage.razor` | `/sender/login` — Sender username/password auth. |
-| `ReceiverUI/Pages/LoginReceiverPage.razor` | `/envelope/login/{EnvelopeKey}` — Receiver access code auth. |
+| `ReceiverUI/Pages/Index.razor` | `/` — Application entry point (landing page). |
+| `ReceiverUI/Pages/EnvelopeSenderPage.razor` | `/sender` — Sender dashboard (envelope list). |
+| `ReceiverUI/Pages/EnvelopeReceiverPage.razor` | `/envelope/{key}` — Receiver PDF viewer & signing. |
+| `ReceiverUI/Pages/LoginSenderPage.razor` | `/sender/login` — Sender username/password auth. |
+| `ReceiverUI/Pages/LoginReceiverPage.razor` | `/envelope/login/{EnvelopeKey}` — Receiver access code auth. |
 | `ReceiverUI/wwwroot/js/pdf-viewer.js` | PDF.js wrapper (zoom, pagination, thumbnails). |
 | `ReceiverUI/wwwroot/js/receiver-signature.js` | Signature pad (draw/type/image). |
 | `ReceiverUI/wwwroot/css/envelope-viewer.css` | EnvelopeViewer styles. |
@@ -106,7 +171,7 @@ Client ? API:8088 (YARP Proxy) ? ReceiverUI:52936 (Blazor WASM)
 
 ---
 
-## Coordinate System — CRITICAL
+## Coordinate System — CRITICAL
 
 **Database Format:** INCHES (GdPicture14 native)  
 **Origin:** Top-left corner  
@@ -135,7 +200,7 @@ Client ? API:8088 (YARP Proxy) ? ReceiverUI:52936 (Blazor WASM)
 
 ---
 
-## EnvelopeReceiver — PDF.js Viewer & Signing
+## EnvelopeReceiver — PDF.js Viewer & Signing
 
 **Route:** `/envelope/{EnvelopeKey}`  
 **Tech:** PDF.js 3.11.174 + Blazor WASM + configurable quality  
@@ -178,7 +243,7 @@ window.pdfViewer = {
 
 ---
 
-## Signature Workflow — EnvelopeReceiver
+## Signature Workflow — EnvelopeReceiver
 
 **IMPORTANT:** iText7 NOT used (GPL license issue). Client-side overlay system only.
 
@@ -231,9 +296,9 @@ public sealed record SignatureCaptureDto {
 ### API Endpoints
 **Controller:** `API/Controllers/CacheController.cs`
 
-- `POST /api/Cache/SignatureCapture/{envelopeKey}` — Save
-- `GET /api/Cache/SignatureCapture/{envelopeKey}` — Load
-- `DELETE /api/Cache/SignatureCapture/{envelopeKey}` — Delete
+- `POST /api/Cache/SignatureCapture/{envelopeKey}` — Save
+- `GET /api/Cache/SignatureCapture/{envelopeKey}` — Load
+- `DELETE /api/Cache/SignatureCapture/{envelopeKey}` — Delete
 
 **Cache Key Format:**
 ```
@@ -299,7 +364,7 @@ public async Task<SenderLoginResult> LoginSenderAsync(string username, string pa
 
 **Response:**
 - `200 OK` ? Cookie set, redirect to `/sender`
-- `401 Unauthorized` ? Show error: "Ungültige Anmeldedaten"
+- `401 Unauthorized` ? Show error: "Ungültige Anmeldedaten"
 - Other ? Show error: "Serverfehler"
 
 **Cookie:** HTTP-only, Secure (HTTPS), SameSite=Strict
@@ -357,7 +422,7 @@ public async Task<EnvelopeLoginResult> LoginEnvelopeReceiverAsync(string key, st
 
 ---
 
-## Mistakes History — Do NOT Repeat
+## Mistakes History — Do NOT Repeat
 
 | Mistake | Why Wrong |
 |---|---|
@@ -376,8 +441,8 @@ public async Task<EnvelopeLoginResult> LoginEnvelopeReceiverAsync(string key, st
 
 ### Deprecated Projects
 **DO NOT USE:**
-- `EnvelopeGenerator.Web` (Razor Pages) — Replaced by unified ReceiverUI
-- PSPDFKit — Removed, use PDF.js + DevExpress instead
+- `EnvelopeGenerator.Web` (Razor Pages) — Replaced by unified ReceiverUI
+- PSPDFKit — Removed, use PDF.js + DevExpress instead
 
 ### Legacy Projects (VB.NET)
 **DO NOT TOUCH:** `EnvelopeGenerator.Service`, `EnvelopeGenerator.Form`, `EnvelopeGenerator.BBTests`
@@ -402,8 +467,8 @@ Proves database uses INCHES natively.
 ## Quick Reference
 
 ### When working with coordinates:
-1. **Database ? UI:** INCHES × 72 = PDF Points
-2. **UI ? Display:** Points × scale = Pixels
+1. **Database ? UI:** INCHES × 72 = PDF Points
+2. **UI ? Display:** Points × scale = Pixels
 3. **iText7 stamping:** Flip Y-axis (top-down ? bottom-up)
 
 ### When adding features:

EnvelopeGenerator.API/Controllers/AuthController.cs

@@ -40,7 +40,7 @@ public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions,
     /// <response code="401">Wenn es kein zugelassenes Cookie gibt, wird „nicht zugelassen“ zurückgegeben.</response>
     [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
-    [Authorize(Policy = AuthPolicy.SenderOrReceiver)]
+    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
     [HttpPost("logout")]
     public async Task<IActionResult> Logout()
     {
@@ -69,7 +69,7 @@ public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions,
     [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
     [HttpGet("check")]
-    [Authorize]
+    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
     public IActionResult Check(string? role = null)
         => role is not null && !User.IsInRole(role)
             ? Unauthorized()

EnvelopeGenerator.API/Controllers/ConfigController.cs

@@ -1,4 +1,5 @@
 using EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
+using EnvelopeGenerator.Domain.Constants;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
@@ -13,7 +14,7 @@ namespace EnvelopeGenerator.API.Controllers;
 /// </remarks>
 [Route("api/[controller]")]
 [ApiController]
-[Authorize]
+[Authorize(Policy = AuthPolicy.SenderOrReceiver)]
 public class ConfigController(IOptionsMonitor<AnnotationParams> annotationParamsOptions) : ControllerBase
 {
     private readonly AnnotationParams _annotationParams = annotationParamsOptions.CurrentValue;

EnvelopeGenerator.API/Controllers/DocReceiverElementController.cs

@@ -15,14 +15,14 @@ namespace EnvelopeGenerator.API.Controllers;
 [Authorize(Policy = AuthPolicy.Receiver)]
 [ApiController]
 [Route("api/[controller]")]
-public class SignatureController : ControllerBase
+public class DocReceiverElementController : ControllerBase
 {
     private readonly IMediator _mediator;
 
     /// <summary>
-    /// Initializes a new instance of <see cref="SignatureController"/>.
+    /// Initializes a new instance of <see cref="DocReceiverElementController"/>.
     /// </summary>
-    public SignatureController(IMediator mediator)
+    public DocReceiverElementController(IMediator mediator)
     {
         _mediator = mediator;
     }

EnvelopeGenerator.API/Controllers/EnvelopeController.cs

@@ -51,7 +51,7 @@ public class EnvelopeController : ControllerBase
     /// <response code="401">Der Benutzer ist nicht authentifiziert.</response>
     /// <response code="403">Der Benutzer hat keine Berechtigung, auf die Ressource zuzugreifen.</response>
     /// <response code="500">Ein unerwarteter Fehler ist aufgetreten.</response>
-    [Authorize]
+    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
     [HttpGet]
     public async Task<IActionResult> GetAsync([FromQuery] ReadEnvelopeQuery envelope)
     {

EnvelopeGenerator.API/EnvelopeGenerator.API.csproj

@@ -34,6 +34,7 @@
     <PackageReference Include="DigitalData.Auth.Client" Version="1.3.7" />
     <PackageReference Include="DigitalData.Core.API" Version="2.2.1" />
     <PackageReference Include="HtmlSanitizer" Version="9.0.892" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.28" />
     <PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="8.0.11" Condition="'$(TargetFramework)' == 'net8.0'" />
     <PackageReference Include="itext" Version="8.0.5" />
     <PackageReference Include="itext.bouncy-castle-adapter" Version="8.0.5" />

EnvelopeGenerator.API/Program.cs

@@ -13,7 +13,6 @@ using EnvelopeGenerator.Application;
 using DigitalData.Auth.Client;
 using DigitalData.Core.Abstractions;
 using EnvelopeGenerator.API.Models;
-using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.IdentityModel.Tokens;
 using DigitalData.Core.Abstractions.Security.Extensions;
 using EnvelopeGenerator.API.Middleware;
@@ -22,6 +21,7 @@ using NLog.Web;
 using NLog;
 using DigitalData.Auth.Claims;
 using EnvelopeGenerator.API;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
 
 var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
 logger.Info("Logging initialized!");
@@ -44,7 +44,11 @@ try
 
     var deferredProvider = new DeferredServiceProvider();
 
-    builder.Services.AddControllers();
+    builder.Services.AddControllers()
+        .AddJsonOptions(options =>
+        {
+            options.JsonSerializerOptions.ReferenceHandler = System.Text.Json.Serialization.ReferenceHandler.IgnoreCycles;
+        });
     builder.Services.AddHttpClient();
     builder.Services.AddReverseProxy().LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"));
 
@@ -238,8 +242,9 @@ try
     });
 
     builder.Services.AddAuthorizationBuilder()
-        .AddPolicy(AuthPolicy.SenderOrReceiver, policy => policy.RequireRole(Role.Sender, Role.Receiver.Full))
-
+        .AddPolicy(AuthPolicy.SenderOrReceiver, policy => policy
+            .RequireRole(Role.Sender, Role.Receiver.Full)
+            .AddAuthenticationSchemes(AuthScheme.Sender, AuthScheme.Receiver))
         .AddPolicy(AuthPolicy.Sender, policy => policy
             .RequireRole(Role.Sender)
             .AddAuthenticationSchemes(AuthScheme.Sender))

EnvelopeGenerator.API/Properties/launchSettings.json

@@ -22,8 +22,8 @@
     "https": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": false,
-      "launchUrl": "swagger",
+      "launchBrowser": true,
+      "launchUrl": "sender",
       "applicationUrl": "https://localhost:8088;http://localhost:5131",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"

EnvelopeGenerator.Application/Common/Dto/ConfigDto.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto;
+namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing configuration settings.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class ConfigDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/DocReceiverElementDto.cs

@@ -1,14 +1,11 @@
 using EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Domain.Interfaces;
-using Microsoft.AspNetCore.Mvc;
-using System.ComponentModel.DataAnnotations.Schema;
 
 namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing a positioned element assigned to a document receiver.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class DocReceiverElementDto : IDocReceiverElement
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/DocumentDto.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto;
+namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing a document within an envelope, including optional binary data and form elements.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class DocumentDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/DocumentStatusDto.cs

@@ -1,12 +1,10 @@
 using EnvelopeGenerator.Domain.Constants;
-using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing the status of a document for a specific receiver.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class DocumentStatusDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/EnvelopeDto.cs

@@ -1,16 +1,14 @@
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using DigitalData.UserManager.Application.DTOs.User;
+using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
 using EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Domain.Interfaces;
-using Microsoft.AspNetCore.Mvc;
-
 namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record EnvelopeDto : IEnvelope
 {
 	/// <summary>
@@ -126,4 +124,9 @@ public record EnvelopeDto : IEnvelope
     /// 
     /// </summary>
     public IEnumerable<DocumentDto>? Documents { get; set; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public IEnumerable<EnvelopeReceiverDto>? EnvelopeReceivers { get; set; }
 }

EnvelopeGenerator.Application/Common/Dto/EnvelopeReceiver/EnvelopeReceiverDto.cs

@@ -1,13 +1,11 @@
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using EnvelopeGenerator.Application.Common.Dto.Receiver;
-using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
 
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record EnvelopeReceiverDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/EnvelopeReceiver/EnvelopeReceiverSecretDto.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
+namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
 
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record EnvelopeReceiverSecretDto : EnvelopeReceiverDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyCreateDto.cs

@@ -1,5 +1,4 @@
-using Microsoft.AspNetCore.Mvc;
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
@@ -8,7 +7,6 @@ namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 /// 
 /// </summary>
 /// <param name="DateValid"></param>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record EnvelopeReceiverReadOnlyCreateDto(
     DateTime DateValid)
 {

EnvelopeGenerator.Application/Common/Dto/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyDto.cs

@@ -1,6 +1,4 @@
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.Common.Dto.Receiver;
-using Microsoft.AspNetCore.Mvc;
+using EnvelopeGenerator.Application.Common.Dto.Receiver;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 
@@ -8,7 +6,6 @@ namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 /// Represents a read-only Data Transfer Object (DTO) for an envelope receiver.
 /// Contains information about the receiver, associated envelope, and audit details.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class EnvelopeReceiverReadOnlyDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/EnvelopeReceiverReadOnly/EnvelopeReceiverReadOnlyUpdateDto.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
+namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 
 /// <summary>
 /// Data Transfer Object for updating a read-only envelope receiver.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class EnvelopeReceiverReadOnlyUpdateDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/EnvelopeTypeDto.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto;
+namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing a type of envelope with its configuration settings.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class EnvelopeTypeDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/Messaging/GtxMessagingResponse.cs

@@ -1,9 +1,6 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto.Messaging;
+namespace EnvelopeGenerator.Application.Common.Dto.Messaging;
 
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class GtxMessagingResponse : Dictionary<string, object?> { }

EnvelopeGenerator.Application/Common/Dto/Messaging/SmsResponse.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Common.Dto.Messaging;
+namespace EnvelopeGenerator.Application.Common.Dto.Messaging;
 
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record SmsResponse
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Dto/Receiver/ReceiverDto.cs

@@ -1,5 +1,4 @@
 using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
-using Microsoft.AspNetCore.Mvc;
 using System.Text.Json.Serialization;
 
 namespace EnvelopeGenerator.Application.Common.Dto.Receiver;
@@ -7,7 +6,6 @@ namespace EnvelopeGenerator.Application.Common.Dto.Receiver;
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class ReceiverDto
 {
     /// <summary>

EnvelopeGenerator.Application/Common/MappingProfile.cs

@@ -7,7 +7,9 @@ using EnvelopeGenerator.Application.Common.Dto.Receiver;
 using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Domain.Entities;
 
-namespace EnvelopeGenerator.Application.Common.Dto;
+using EnvelopeGenerator.Application.Common.Dto;
+
+namespace EnvelopeGenerator.Application.Common;
 
 /// <summary>
 /// Represents the AutoMapper profile configuration for mapping between
@@ -28,13 +30,13 @@ public class MappingProfile : Profile
         CreateMap<EmailTemplate, EmailTemplateDto>();
         CreateMap<Envelope, EnvelopeDto>();
         CreateMap<Document, DocumentDto>();
-        CreateMap<Domain.Entities.History, HistoryDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
-        CreateMap<Domain.Entities.History, HistoryCreateDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
-        CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverDto>();
-        CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverSecretDto>();
+        CreateMap<History, HistoryDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
+        CreateMap<History, HistoryCreateDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
+        CreateMap<EnvelopeReceiver, EnvelopeReceiverDto>();
+        CreateMap<EnvelopeReceiver, EnvelopeReceiverSecretDto>();
         CreateMap<EnvelopeType, EnvelopeTypeDto>();
-        CreateMap<Domain.Entities.Receiver, ReceiverDto>();
-        CreateMap<Domain.Entities.EnvelopeReceiverReadOnly, EnvelopeReceiverReadOnlyDto>();
+        CreateMap<Receiver, ReceiverDto>();
+        CreateMap<EnvelopeReceiverReadOnly, EnvelopeReceiverReadOnlyDto>();
         CreateMap<ElementAnnotation, AnnotationDto>();
 
         // DTO to Entity mappings
@@ -47,13 +49,13 @@ public class MappingProfile : Profile
         CreateMap<EmailTemplateDto, EmailTemplate>();
         CreateMap<EnvelopeDto, Envelope>();
         CreateMap<DocumentDto, Document>();
-        CreateMap<HistoryDto, Domain.Entities.History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
-        CreateMap<HistoryCreateDto, Domain.Entities.History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
-        CreateMap<EnvelopeReceiverDto, Domain.Entities.EnvelopeReceiver>();
+        CreateMap<HistoryDto, History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
+        CreateMap<HistoryCreateDto, History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
+        CreateMap<EnvelopeReceiverDto, EnvelopeReceiver>();
         CreateMap<EnvelopeTypeDto, EnvelopeType>();
-        CreateMap<ReceiverDto, Domain.Entities.Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
-        CreateMap<EnvelopeReceiverReadOnlyCreateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
-        CreateMap<EnvelopeReceiverReadOnlyUpdateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
+        CreateMap<ReceiverDto, Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
+        CreateMap<EnvelopeReceiverReadOnlyCreateDto, EnvelopeReceiverReadOnly>();
+        CreateMap<EnvelopeReceiverReadOnlyUpdateDto, EnvelopeReceiverReadOnly>();
         CreateMap<AnnotationCreateDto, ElementAnnotation>()
             .MapAddedWhen();
 

EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj

@@ -21,7 +21,6 @@
 		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.1.1" />
 		<PackageReference Include="HtmlSanitizer" Version="9.0.892" />
 		<PackageReference Include="MediatR" Version="12.5.0" />
-		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.18" />
 		<PackageReference Include="Microsoft.Identity.Client" Version="4.82.1" />
 		<PackageReference Include="Otp.NET" Version="1.4.0" />
 		<PackageReference Include="QRCoder" Version="1.6.0" />

EnvelopeGenerator.Application/Envelopes/Queries/ReadEnvelopeQuery.cs

@@ -14,6 +14,16 @@ namespace EnvelopeGenerator.Application.Envelopes.Queries;
 /// </summary>
 public record ReadEnvelopeQuery : EnvelopeQueryBase, IRequest<IEnumerable<EnvelopeDto>>
 {
+    /// <summary>
+    /// 
+    /// </summary>
+    public bool OnlyActive { get; init; } = false;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public bool OnlyCompleted { get; init; } = false;
+
     /// <summary>
     /// Abfrage des Include des Umschlags
     /// </summary>
@@ -22,7 +32,7 @@ public record ReadEnvelopeQuery : EnvelopeQueryBase, IRequest<IEnumerable<Envelo
     /// <summary>
     /// Optionaler Benutzerfilter; wenn gesetzt, werden nur Umschläge des Benutzers geladen.
     /// </summary>
-    public int? UserId { get; init; }
+    internal int? UserId { get; init; }
 
     /// <summary>
     /// Setzt den Benutzerkontext für die Abfrage.
@@ -132,8 +142,14 @@ public class ReadEnvelopeQueryHandler : IRequestHandler<ReadEnvelopeQuery, IEnum
                 query = query.Where(e => !status.Ignore.Contains(e.Status));
         }
 
+        if(request is { OnlyActive: true })
+            query = query.Where(e => Status.Active.Contains(e.Status));
+
+        if (request is { OnlyCompleted: true })
+            query = query.Where(e => Status.Completed.Contains(e.Status));
+
         var envelopes = await query
-            .Include(e => e.Documents)
+            .Include(e => e.EnvelopeReceivers).ThenInclude(er => er.Receiver)
             .ToListAsync(cancel);
 
         return _mapper.Map<IEnumerable<EnvelopeDto>>(envelopes);

EnvelopeGenerator.Application/Receivers/Commands/CreateReceiverCommand.cs

@@ -3,7 +3,6 @@ using DigitalData.Core.Abstraction.Application.Repository;
 using EnvelopeGenerator.Application.Common.Dto.Receiver;
 using EnvelopeGenerator.Domain.Entities;
 using MediatR;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations;
 using System.Security.Cryptography;
@@ -14,7 +13,6 @@ namespace EnvelopeGenerator.Application.Receivers.Commands;
 /// <summary>
 /// 
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public record CreateReceiverCommand : IRequest<(ReceiverDto Receiver, bool AlreadyExists)>
 {
     /// <summary>

EnvelopeGenerator.Application/Receivers/Commands/UpdateReceiverCommand.cs

@@ -1,11 +1,8 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace EnvelopeGenerator.Application.Receivers.Commands;
+namespace EnvelopeGenerator.Application.Receivers.Commands;
 
 /// <summary>
 /// Data Transfer Object for updating a receiver's information.
 /// </summary>
-[ApiExplorerSettings(IgnoreApi = true)]
 public class UpdateReceiverCommand
 {
     /// <summary>

EnvelopeGenerator.Application/Resources/Resource.cs

@@ -397,4 +397,412 @@ public static class Extensions
     /// <param name="suffix"></param>
     /// <returns></returns>
     public static string LockedFooterBody(this IStringLocalizer localizer, string suffix) => localizer[nameof(LockedFooterBody) + suffix].Value;
+
+    // Sender-side UI resources
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string NewEnvelope(this IStringLocalizer localizer) => localizer[nameof(NewEnvelope)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string LoadEnvelope(this IStringLocalizer localizer) => localizer[nameof(LoadEnvelope)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string DeleteEnvelope(this IStringLocalizer localizer) => localizer[nameof(DeleteEnvelope)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string RefreshData(this IStringLocalizer localizer) => localizer[nameof(RefreshData)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string RefreshedAt(this IStringLocalizer localizer) => localizer[nameof(RefreshedAt)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ShowDocument(this IStringLocalizer localizer) => localizer[nameof(ShowDocument)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ContactReceiver(this IStringLocalizer localizer) => localizer[nameof(ContactReceiver)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string EnvelopeId(this IStringLocalizer localizer) => localizer[nameof(EnvelopeId)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string OpenLogDirectory(this IStringLocalizer localizer) => localizer[nameof(OpenLogDirectory)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ShowResultsReport(this IStringLocalizer localizer) => localizer[nameof(ShowResultsReport)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string SupportMail(this IStringLocalizer localizer) => localizer[nameof(SupportMail)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ResendInvitation(this IStringLocalizer localizer) => localizer[nameof(ResendInvitation)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Export(this IStringLocalizer localizer) => localizer[nameof(Export)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Receivers(this IStringLocalizer localizer) => localizer[nameof(Receivers)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string EmailSalutation(this IStringLocalizer localizer) => localizer[nameof(EmailSalutation)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string SignedWhen(this IStringLocalizer localizer) => localizer[nameof(SignedWhen)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string AccessCode(this IStringLocalizer localizer) => localizer[nameof(AccessCode)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string User(this IStringLocalizer localizer) => localizer[nameof(User)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Type(this IStringLocalizer localizer) => localizer[nameof(Type)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Title(this IStringLocalizer localizer) => localizer[nameof(Title)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string CreatedOn(this IStringLocalizer localizer) => localizer[nameof(CreatedOn)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string LastModified(this IStringLocalizer localizer) => localizer[nameof(LastModified)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string OpenEnvelopes(this IStringLocalizer localizer) => localizer[nameof(OpenEnvelopes)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string CompletedEnvelopes(this IStringLocalizer localizer) => localizer[nameof(CompletedEnvelopes)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string SendAccessCode(this IStringLocalizer localizer) => localizer[nameof(SendAccessCode)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string TwoFactorProperties(this IStringLocalizer localizer) => localizer[nameof(TwoFactorProperties)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Name(this IStringLocalizer localizer) => localizer[nameof(Name)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string PhoneNumber(this IStringLocalizer localizer) => localizer[nameof(PhoneNumber)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string AddReceiver(this IStringLocalizer localizer) => localizer[nameof(AddReceiver)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string DeleteReceiver(this IStringLocalizer localizer) => localizer[nameof(DeleteReceiver)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string AddFile(this IStringLocalizer localizer) => localizer[nameof(AddFile)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string MergeFiles(this IStringLocalizer localizer) => localizer[nameof(MergeFiles)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string DeleteFile(this IStringLocalizer localizer) => localizer[nameof(DeleteFile)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ShowFile(this IStringLocalizer localizer) => localizer[nameof(ShowFile)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string EditFields(this IStringLocalizer localizer) => localizer[nameof(EditFields)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string EditData(this IStringLocalizer localizer) => localizer[nameof(EditData)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Save(this IStringLocalizer localizer) => localizer[nameof(Save)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string SendEnvelope(this IStringLocalizer localizer) => localizer[nameof(SendEnvelope)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Cancel(this IStringLocalizer localizer) => localizer[nameof(Cancel)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string AddSignature(this IStringLocalizer localizer) => localizer[nameof(AddSignature)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string DeleteSignature(this IStringLocalizer localizer) => localizer[nameof(DeleteSignature)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Language(this IStringLocalizer localizer) => localizer[nameof(Language)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string UseAccessCode(this IStringLocalizer localizer) => localizer[nameof(UseAccessCode)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string TwoFactorEnabled(this IStringLocalizer localizer) => localizer[nameof(TwoFactorEnabled)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string CertificationType(this IStringLocalizer localizer) => localizer[nameof(CertificationType)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string FinalEmailToCreator(this IStringLocalizer localizer) => localizer[nameof(FinalEmailToCreator)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string FinalEmailToReceivers(this IStringLocalizer localizer) => localizer[nameof(FinalEmailToReceivers)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string SendReminderEmails(this IStringLocalizer localizer) => localizer[nameof(SendReminderEmails)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string FirstReminderDays(this IStringLocalizer localizer) => localizer[nameof(FirstReminderDays)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ReminderIntervalDays(this IStringLocalizer localizer) => localizer[nameof(ReminderIntervalDays)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ExpiresWhenDays(this IStringLocalizer localizer) => localizer[nameof(ExpiresWhenDays)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string ExpiresWarningDays(this IStringLocalizer localizer) => localizer[nameof(ExpiresWarningDays)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Message(this IStringLocalizer localizer) => localizer[nameof(Message)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string EnvelopeType(this IStringLocalizer localizer) => localizer[nameof(EnvelopeType)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string AllOptions(this IStringLocalizer localizer) => localizer[nameof(AllOptions)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string DeleteReason(this IStringLocalizer localizer) => localizer[nameof(DeleteReason)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string PleaseProvideReason(this IStringLocalizer localizer) => localizer[nameof(PleaseProvideReason)].Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="localizer"></param>
+    /// <returns></returns>
+    public static string Status(this IStringLocalizer localizer) => localizer[nameof(Status)].Value;
 }

EnvelopeGenerator.Application/Resources/Resource.de-DE.resx

@@ -477,4 +477,178 @@
   <data name="Confirmations" xml:space="preserve">
     <value>Bestätigungen</value>
   </data>
+  <data name="NewEnvelope" xml:space="preserve">
+    <value>Neuer Umschlag</value>
+  </data>
+  <data name="LoadEnvelope" xml:space="preserve">
+    <value>Umschlag laden</value>
+  </data>
+  <data name="DeleteEnvelope" xml:space="preserve">
+    <value>Umschlag zurückrufen/löschen</value>
+  </data>
+  <data name="RefreshData" xml:space="preserve">
+    <value>Daten Aktualisieren</value>
+  </data>
+  <data name="RefreshedAt" xml:space="preserve">
+    <value>Aktualisiert: {0}</value>
+  </data>
+  <data name="ShowDocument" xml:space="preserve">
+    <value>Dokument anzeigen</value>
+  </data>
+  <data name="ContactReceiver" xml:space="preserve">
+    <value>Empfänger kontaktieren</value>
+  </data>
+  <data name="EnvelopeId" xml:space="preserve">
+    <value>Umschlag-ID: {0}</value>
+  </data>
+  <data name="OpenLogDirectory" xml:space="preserve">
+    <value>Öffne Log Verzeichnis</value>
+  </data>
+  <data name="ShowResultsReport" xml:space="preserve">
+    <value>Ergebnisbericht anzeigen</value>
+  </data>
+  <data name="SupportMail" xml:space="preserve">
+    <value>Support Mail</value>
+  </data>
+  <data name="ResendInvitation" xml:space="preserve">
+    <value>Einladung manuell versenden</value>
+  </data>
+  <data name="Export" xml:space="preserve">
+    <value>Export</value>
+  </data>
+  <data name="Receivers" xml:space="preserve">
+    <value>Empfänger</value>
+  </data>
+  <data name="EmailSalutation" xml:space="preserve">
+    <value>Email Anrede</value>
+  </data>
+  <data name="SignedWhen" xml:space="preserve">
+    <value>Unterschrieben wann</value>
+  </data>
+  <data name="AccessCode" xml:space="preserve">
+    <value>Zugangscode</value>
+  </data>
+  <data name="User" xml:space="preserve">
+    <value>Benutzer</value>
+  </data>
+  <data name="Type" xml:space="preserve">
+    <value>Typ</value>
+  </data>
+  <data name="Title" xml:space="preserve">
+    <value>Titel</value>
+  </data>
+  <data name="CreatedOn" xml:space="preserve">
+    <value>Erstellt am</value>
+  </data>
+  <data name="LastModified" xml:space="preserve">
+    <value>Zuletzt geändert am</value>
+  </data>
+  <data name="OpenEnvelopes" xml:space="preserve">
+    <value>Offene Umschläge</value>
+  </data>
+  <data name="CompletedEnvelopes" xml:space="preserve">
+    <value>Abgeschlossene Umschläge</value>
+  </data>
+  <data name="SendAccessCode" xml:space="preserve">
+    <value>Zugangscode senden</value>
+  </data>
+  <data name="TwoFactorProperties" xml:space="preserve">
+    <value>2-Faktor Eigenschaften</value>
+  </data>
+  <data name="Name" xml:space="preserve">
+    <value>Name</value>
+  </data>
+  <data name="PhoneNumber" xml:space="preserve">
+    <value>Telefonnummer</value>
+  </data>
+  <data name="AddReceiver" xml:space="preserve">
+    <value>Empfänger hinzufügen</value>
+  </data>
+  <data name="DeleteReceiver" xml:space="preserve">
+    <value>Empfänger löschen</value>
+  </data>
+  <data name="AddFile" xml:space="preserve">
+    <value>Datei hinzufügen</value>
+  </data>
+  <data name="MergeFiles" xml:space="preserve">
+    <value>Dateien zusammenführen</value>
+  </data>
+  <data name="DeleteFile" xml:space="preserve">
+    <value>Datei löschen</value>
+  </data>
+  <data name="ShowFile" xml:space="preserve">
+    <value>Datei anzeigen</value>
+  </data>
+  <data name="EditFields" xml:space="preserve">
+    <value>Felder bearbeiten</value>
+  </data>
+  <data name="EditData" xml:space="preserve">
+    <value>Daten bearbeiten</value>
+  </data>
+  <data name="Save" xml:space="preserve">
+    <value>Speichern</value>
+  </data>
+  <data name="SendEnvelope" xml:space="preserve">
+    <value>Umschlag versenden</value>
+  </data>
+  <data name="Cancel" xml:space="preserve">
+    <value>Abbrechen</value>
+  </data>
+  <data name="AddSignature" xml:space="preserve">
+    <value>Signatur hinzufügen</value>
+  </data>
+  <data name="DeleteSignature" xml:space="preserve">
+    <value>Signatur löschen</value>
+  </data>
+  <data name="Language" xml:space="preserve">
+    <value>Sprache</value>
+  </data>
+  <data name="UseAccessCode" xml:space="preserve">
+    <value>Zugangscode verwenden</value>
+  </data>
+  <data name="TwoFactorEnabled" xml:space="preserve">
+    <value>2-Faktor-Authentifizierung aktiviert</value>
+  </data>
+  <data name="CertificationType" xml:space="preserve">
+    <value>Zertifizierungstyp</value>
+  </data>
+  <data name="FinalEmailToCreator" xml:space="preserve">
+    <value>Finale E-Mail an Ersteller</value>
+  </data>
+  <data name="FinalEmailToReceivers" xml:space="preserve">
+    <value>Finale E-Mail an Empfänger</value>
+  </data>
+  <data name="SendReminderEmails" xml:space="preserve">
+    <value>Erinnerungs-E-Mails senden</value>
+  </data>
+  <data name="FirstReminderDays" xml:space="preserve">
+    <value>Erste Erinnerung (Tage)</value>
+  </data>
+  <data name="ReminderIntervalDays" xml:space="preserve">
+    <value>Erinnerungsintervall (Tage)</value>
+  </data>
+  <data name="ExpiresWhenDays" xml:space="preserve">
+    <value>Läuft ab nach (Tage)</value>
+  </data>
+  <data name="ExpiresWarningDays" xml:space="preserve">
+    <value>Ablaufwarnung (Tage)</value>
+  </data>
+  <data name="Message" xml:space="preserve">
+    <value>Nachricht</value>
+  </data>
+  <data name="EnvelopeType" xml:space="preserve">
+    <value>Umschlagtyp</value>
+  </data>
+  <data name="AllOptions" xml:space="preserve">
+    <value>Alle Optionen</value>
+  </data>
+  <data name="DeleteReason" xml:space="preserve">
+    <value>Grund für Löschung</value>
+  </data>
+  <data name="PleaseProvideReason" xml:space="preserve">
+    <value>Bitte geben Sie einen Grund an</value>
+  </data>
+  <data name="Status" xml:space="preserve">
+    <value>Status</value>
+  </data>
 </root>

EnvelopeGenerator.Application/Resources/Resource.en-US.resx

@@ -477,4 +477,178 @@
   <data name="Confirmations" xml:space="preserve">
     <value>Confirmations</value>
   </data>
+  <data name="NewEnvelope" xml:space="preserve">
+    <value>New Envelope</value>
+  </data>
+  <data name="LoadEnvelope" xml:space="preserve">
+    <value>Load Envelope</value>
+  </data>
+  <data name="DeleteEnvelope" xml:space="preserve">
+    <value>Delete Envelope</value>
+  </data>
+  <data name="RefreshData" xml:space="preserve">
+    <value>Reload Data</value>
+  </data>
+  <data name="RefreshedAt" xml:space="preserve">
+    <value>Refreshed: {0}</value>
+  </data>
+  <data name="ShowDocument" xml:space="preserve">
+    <value>Show Document</value>
+  </data>
+  <data name="ContactReceiver" xml:space="preserve">
+    <value>Contact Receiver</value>
+  </data>
+  <data name="EnvelopeId" xml:space="preserve">
+    <value>Envelope-ID: {0}</value>
+  </data>
+  <data name="OpenLogDirectory" xml:space="preserve">
+    <value>Open Log Directory</value>
+  </data>
+  <data name="ShowResultsReport" xml:space="preserve">
+    <value>Show Results Report</value>
+  </data>
+  <data name="SupportMail" xml:space="preserve">
+    <value>Support Mail</value>
+  </data>
+  <data name="ResendInvitation" xml:space="preserve">
+    <value>Send Invitation Again</value>
+  </data>
+  <data name="Export" xml:space="preserve">
+    <value>Export</value>
+  </data>
+  <data name="Receivers" xml:space="preserve">
+    <value>Receivers</value>
+  </data>
+  <data name="EmailSalutation" xml:space="preserve">
+    <value>Email Salutation</value>
+  </data>
+  <data name="SignedWhen" xml:space="preserve">
+    <value>Signed When</value>
+  </data>
+  <data name="AccessCode" xml:space="preserve">
+    <value>Access Code</value>
+  </data>
+  <data name="User" xml:space="preserve">
+    <value>User</value>
+  </data>
+  <data name="Type" xml:space="preserve">
+    <value>Type</value>
+  </data>
+  <data name="Title" xml:space="preserve">
+    <value>Title</value>
+  </data>
+  <data name="CreatedOn" xml:space="preserve">
+    <value>Created On</value>
+  </data>
+  <data name="LastModified" xml:space="preserve">
+    <value>Last Modified</value>
+  </data>
+  <data name="OpenEnvelopes" xml:space="preserve">
+    <value>Open Envelopes</value>
+  </data>
+  <data name="CompletedEnvelopes" xml:space="preserve">
+    <value>Completed Envelopes</value>
+  </data>
+  <data name="SendAccessCode" xml:space="preserve">
+    <value>Send Access Code</value>
+  </data>
+  <data name="TwoFactorProperties" xml:space="preserve">
+    <value>2-Factor Properties</value>
+  </data>
+  <data name="Name" xml:space="preserve">
+    <value>Name</value>
+  </data>
+  <data name="PhoneNumber" xml:space="preserve">
+    <value>Phone Number</value>
+  </data>
+  <data name="AddReceiver" xml:space="preserve">
+    <value>Add Receiver</value>
+  </data>
+  <data name="DeleteReceiver" xml:space="preserve">
+    <value>Delete Receiver</value>
+  </data>
+  <data name="AddFile" xml:space="preserve">
+    <value>Add File</value>
+  </data>
+  <data name="MergeFiles" xml:space="preserve">
+    <value>Merge Files</value>
+  </data>
+  <data name="DeleteFile" xml:space="preserve">
+    <value>Delete File</value>
+  </data>
+  <data name="ShowFile" xml:space="preserve">
+    <value>Show File</value>
+  </data>
+  <data name="EditFields" xml:space="preserve">
+    <value>Edit Fields</value>
+  </data>
+  <data name="EditData" xml:space="preserve">
+    <value>Edit Data</value>
+  </data>
+  <data name="Save" xml:space="preserve">
+    <value>Save</value>
+  </data>
+  <data name="SendEnvelope" xml:space="preserve">
+    <value>Send Envelope</value>
+  </data>
+  <data name="Cancel" xml:space="preserve">
+    <value>Cancel</value>
+  </data>
+  <data name="AddSignature" xml:space="preserve">
+    <value>Add Signature</value>
+  </data>
+  <data name="DeleteSignature" xml:space="preserve">
+    <value>Delete Signature</value>
+  </data>
+  <data name="Language" xml:space="preserve">
+    <value>Language</value>
+  </data>
+  <data name="UseAccessCode" xml:space="preserve">
+    <value>Use Access Code</value>
+  </data>
+  <data name="TwoFactorEnabled" xml:space="preserve">
+    <value>2-Factor Authentication Enabled</value>
+  </data>
+  <data name="CertificationType" xml:space="preserve">
+    <value>Certification Type</value>
+  </data>
+  <data name="FinalEmailToCreator" xml:space="preserve">
+    <value>Final Email to Creator</value>
+  </data>
+  <data name="FinalEmailToReceivers" xml:space="preserve">
+    <value>Final Email to Receivers</value>
+  </data>
+  <data name="SendReminderEmails" xml:space="preserve">
+    <value>Send Reminder Emails</value>
+  </data>
+  <data name="FirstReminderDays" xml:space="preserve">
+    <value>First Reminder (Days)</value>
+  </data>
+  <data name="ReminderIntervalDays" xml:space="preserve">
+    <value>Reminder Interval (Days)</value>
+  </data>
+  <data name="ExpiresWhenDays" xml:space="preserve">
+    <value>Expires After (Days)</value>
+  </data>
+  <data name="ExpiresWarningDays" xml:space="preserve">
+    <value>Expiry Warning (Days)</value>
+  </data>
+  <data name="Message" xml:space="preserve">
+    <value>Message</value>
+  </data>
+  <data name="EnvelopeType" xml:space="preserve">
+    <value>Envelope Type</value>
+  </data>
+  <data name="AllOptions" xml:space="preserve">
+    <value>All Options</value>
+  </data>
+  <data name="DeleteReason" xml:space="preserve">
+    <value>Deletion Reason</value>
+  </data>
+  <data name="PleaseProvideReason" xml:space="preserve">
+    <value>Please provide a reason</value>
+  </data>
+  <data name="Status" xml:space="preserve">
+    <value>Status</value>
+  </data>
 </root>

EnvelopeGenerator.Application/Resources/Resource.fr-FR.resx

@@ -477,4 +477,178 @@
   <data name="Confirmations" xml:space="preserve">
     <value>Confirmations</value>
   </data>
+  <data name="NewEnvelope" xml:space="preserve">
+    <value>Nouvelle enveloppe</value>
+  </data>
+  <data name="LoadEnvelope" xml:space="preserve">
+    <value>Charger l'enveloppe</value>
+  </data>
+  <data name="DeleteEnvelope" xml:space="preserve">
+    <value>Supprimer l'enveloppe</value>
+  </data>
+  <data name="RefreshData" xml:space="preserve">
+    <value>Actualiser les données</value>
+  </data>
+  <data name="RefreshedAt" xml:space="preserve">
+    <value>Actualisé : {0}</value>
+  </data>
+  <data name="ShowDocument" xml:space="preserve">
+    <value>Afficher le document</value>
+  </data>
+  <data name="ContactReceiver" xml:space="preserve">
+    <value>Contacter le destinataire</value>
+  </data>
+  <data name="EnvelopeId" xml:space="preserve">
+    <value>ID d'enveloppe : {0}</value>
+  </data>
+  <data name="OpenLogDirectory" xml:space="preserve">
+    <value>Ouvrir le répertoire des logs</value>
+  </data>
+  <data name="ShowResultsReport" xml:space="preserve">
+    <value>Afficher le rapport de résultats</value>
+  </data>
+  <data name="SupportMail" xml:space="preserve">
+    <value>E-mail de support</value>
+  </data>
+  <data name="ResendInvitation" xml:space="preserve">
+    <value>Renvoyer l'invitation</value>
+  </data>
+  <data name="Export" xml:space="preserve">
+    <value>Exporter</value>
+  </data>
+  <data name="Receivers" xml:space="preserve">
+    <value>Destinataires</value>
+  </data>
+  <data name="EmailSalutation" xml:space="preserve">
+    <value>Formule de politesse</value>
+  </data>
+  <data name="SignedWhen" xml:space="preserve">
+    <value>Signé quand</value>
+  </data>
+  <data name="AccessCode" xml:space="preserve">
+    <value>Code d'accès</value>
+  </data>
+  <data name="User" xml:space="preserve">
+    <value>Utilisateur</value>
+  </data>
+  <data name="Type" xml:space="preserve">
+    <value>Type</value>
+  </data>
+  <data name="Title" xml:space="preserve">
+    <value>Titre</value>
+  </data>
+  <data name="CreatedOn" xml:space="preserve">
+    <value>Créé le</value>
+  </data>
+  <data name="LastModified" xml:space="preserve">
+    <value>Dernière modification</value>
+  </data>
+  <data name="OpenEnvelopes" xml:space="preserve">
+    <value>Enveloppes ouvertes</value>
+  </data>
+  <data name="CompletedEnvelopes" xml:space="preserve">
+    <value>Enveloppes terminées</value>
+  </data>
+  <data name="SendAccessCode" xml:space="preserve">
+    <value>Envoyer le code d'accès</value>
+  </data>
+  <data name="TwoFactorProperties" xml:space="preserve">
+    <value>Propriétés 2-facteurs</value>
+  </data>
+  <data name="Name" xml:space="preserve">
+    <value>Nom</value>
+  </data>
+  <data name="PhoneNumber" xml:space="preserve">
+    <value>Numéro de téléphone</value>
+  </data>
+  <data name="AddReceiver" xml:space="preserve">
+    <value>Ajouter un destinataire</value>
+  </data>
+  <data name="DeleteReceiver" xml:space="preserve">
+    <value>Supprimer le destinataire</value>
+  </data>
+  <data name="AddFile" xml:space="preserve">
+    <value>Ajouter un fichier</value>
+  </data>
+  <data name="MergeFiles" xml:space="preserve">
+    <value>Fusionner les fichiers</value>
+  </data>
+  <data name="DeleteFile" xml:space="preserve">
+    <value>Supprimer le fichier</value>
+  </data>
+  <data name="ShowFile" xml:space="preserve">
+    <value>Afficher le fichier</value>
+  </data>
+  <data name="EditFields" xml:space="preserve">
+    <value>Modifier les champs</value>
+  </data>
+  <data name="EditData" xml:space="preserve">
+    <value>Modifier les données</value>
+  </data>
+  <data name="Save" xml:space="preserve">
+    <value>Enregistrer</value>
+  </data>
+  <data name="SendEnvelope" xml:space="preserve">
+    <value>Envoyer l'enveloppe</value>
+  </data>
+  <data name="Cancel" xml:space="preserve">
+    <value>Annuler</value>
+  </data>
+  <data name="AddSignature" xml:space="preserve">
+    <value>Ajouter une signature</value>
+  </data>
+  <data name="DeleteSignature" xml:space="preserve">
+    <value>Supprimer la signature</value>
+  </data>
+  <data name="Language" xml:space="preserve">
+    <value>Langue</value>
+  </data>
+  <data name="UseAccessCode" xml:space="preserve">
+    <value>Utiliser un code d'accès</value>
+  </data>
+  <data name="TwoFactorEnabled" xml:space="preserve">
+    <value>Authentification à 2 facteurs activée</value>
+  </data>
+  <data name="CertificationType" xml:space="preserve">
+    <value>Type de certification</value>
+  </data>
+  <data name="FinalEmailToCreator" xml:space="preserve">
+    <value>E-mail final au créateur</value>
+  </data>
+  <data name="FinalEmailToReceivers" xml:space="preserve">
+    <value>E-mail final aux destinataires</value>
+  </data>
+  <data name="SendReminderEmails" xml:space="preserve">
+    <value>Envoyer des e-mails de rappel</value>
+  </data>
+  <data name="FirstReminderDays" xml:space="preserve">
+    <value>Premier rappel (jours)</value>
+  </data>
+  <data name="ReminderIntervalDays" xml:space="preserve">
+    <value>Intervalle de rappel (jours)</value>
+  </data>
+  <data name="ExpiresWhenDays" xml:space="preserve">
+    <value>Expire après (jours)</value>
+  </data>
+  <data name="ExpiresWarningDays" xml:space="preserve">
+    <value>Avertissement d'expiration (jours)</value>
+  </data>
+  <data name="Message" xml:space="preserve">
+    <value>Message</value>
+  </data>
+  <data name="EnvelopeType" xml:space="preserve">
+    <value>Type d'enveloppe</value>
+  </data>
+  <data name="AllOptions" xml:space="preserve">
+    <value>Toutes les options</value>
+  </data>
+  <data name="DeleteReason" xml:space="preserve">
+    <value>Motif de suppression</value>
+  </data>
+  <data name="PleaseProvideReason" xml:space="preserve">
+    <value>Veuillez indiquer une raison</value>
+  </data>
+  <data name="Status" xml:space="preserve">
+    <value>Statut</value>
+  </data>
 </root>

EnvelopeGenerator.Domain/Constants/EnvelopeStatus.cs

@@ -1,8 +1,10 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace EnvelopeGenerator.Domain.Constants
 {
-    // http://wiki.dd/xwiki13/bin/view/Anwendungen/Produkt-Handbuch/Sonstiges/SignFlow/Envelope%20Status/
+    // http://wiki.dd/xwiki_prod/bin/view/Anwendungen/Produkt-Handbuch/Sonstiges/signFLOW/signFLOW%20-%20Enwickler-Handbuch/4.%20Anhang/4.3%20Historie%20und%20Status%20der%20Umschl%C3%A4ge/
     public enum EnvelopeStatus
     {
         Invalid = 0,
@@ -49,5 +51,28 @@ namespace EnvelopeGenerator.Domain.Constants
                 EnvelopeStatus.EnvelopeCreated,
                 EnvelopeStatus.DocumentMod_Rotation
             };
+
+        public static readonly List<EnvelopeStatus> Active = Enum.GetValues(typeof(EnvelopeStatus))
+            .Cast<EnvelopeStatus>()
+            .Where(status => status.IsActive())
+            .ToList();
+
+        public static readonly List<EnvelopeStatus> Completed = Enum.GetValues(typeof(EnvelopeStatus))
+            .Cast<EnvelopeStatus>()
+            .Where(status => status.IsCompleted())
+            .ToList();
+    }
+
+    public static class EnvelopeStatusExtensions
+    {
+        public static bool IsActive(this EnvelopeStatus status)
+        {
+            return status >= EnvelopeStatus.EnvelopeCreated && status < EnvelopeStatus.EnvelopePartlySigned;
+        }
+
+        public static bool IsCompleted(this EnvelopeStatus status)
+        {
+            return status >= EnvelopeStatus.EnvelopeCompletelySigned && status <= EnvelopeStatus.EnvelopeWithdrawn;
+        }
     }
 }

EnvelopeGenerator.Domain/Entities/Envelope.cs

@@ -94,7 +94,7 @@ namespace EnvelopeGenerator.Domain.Entities
         public string Language { get; set; }
 
         [Column("SEND_REMINDER_EMAILS")]
-        public bool SendReminderEmails { get; set; }
+        public bool? SendReminderEmails { get; set; }
 
         [Column("FIRST_REMINDER_DAYS")]
         public int? FirstReminderDays { get; set; }
@@ -114,7 +114,7 @@ namespace EnvelopeGenerator.Domain.Entities
         public int? CertificationType { get; set; }
 
         [Column("USE_ACCESS_CODE")]
-        public bool UseAccessCode { get; set; }
+        public bool? UseAccessCode { get; set; }
 
         [Column("FINAL_EMAIL_TO_CREATOR")]
         public int? FinalEmailToCreator { get; set; }
@@ -132,7 +132,7 @@ namespace EnvelopeGenerator.Domain.Entities
         public User User { get; set; }
 
         [Column("TFA_ENABLED")]
-        public bool TfaEnabled { get; set; }
+        public bool? TfaEnabled { get; set; }
 #if NETFRAMEWORK
             = false;
 #endif

EnvelopeGenerator.Infrastructure/EGDbContextFactory.cs

@@ -1,48 +0,0 @@
-#if NET
-using EnvelopeGenerator.Application.Common.Configurations;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Design;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Options;
-
-namespace EnvelopeGenerator.Infrastructure
-{
-    public class EGDbContextFactory : IDesignTimeDbContextFactory<EGDbContext>
-    {
-        public EGDbContext CreateDbContext(string[] args)
-        {
-            var config = new ConfigurationBuilder()
-                .SetBasePath(Directory.GetCurrentDirectory())
-                .AddJsonFile("appsettings.migration.json")
-                .Build();
-
-            // create DbContextOptions
-            var optionsBuilder = new DbContextOptionsBuilder<EGDbContext>();
-            optionsBuilder.UseSqlServer(config.GetConnectionString("Default"));
-
-            // create DbTriggerParams
-            var triggerLists = config.GetSection("DbTriggerParams").Get<Dictionary<string, List<string>>>();
-            var dbTriggerParams = new DbTriggerParams();
-            if (triggerLists is not null)
-                foreach (var triggerList in triggerLists)
-                {
-                    if (triggerList.Value.Count == 0)
-                        continue; // Skip empty trigger lists
-
-                    var tableName = triggerList.Key;
-
-                    dbTriggerParams[tableName] = new List<string>();
-
-                    foreach (var trigger in triggerList.Value)
-                    {
-                        dbTriggerParams[tableName].Add(trigger);
-                    }
-                }
-
-            var dbContext = new EGDbContext(optionsBuilder.Options, Options.Create(dbTriggerParams));
-            dbContext.IsMigration = true;
-            return dbContext;
-        }
-    }
-}
-#endif

EnvelopeGenerator.ReceiverUI/App.razor

@@ -1,4 +1,6 @@
-<Router AppAssembly="@typeof(Program).Assembly">
+@using System.Globalization
+
+<Router AppAssembly="@typeof(Program).Assembly">
     <Found Context="routeData">
         <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
     </Found>

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.csproj

@@ -14,21 +14,23 @@
 	<PackageIcon>Assets\icon.ico</PackageIcon>
 	<PackageTags>digital data envelope generator web</PackageTags>
 	<Description>EnvelopeGenerator.ReceiverUI is a Blazor WebAssembly application developed to manage signing processes. It uses Entity Framework Core (EF Core) for database operations. The user interface for signing processes is developed with Razor View Engine (.cshtml files) and JavaScript under wwwroot, integrated with PSPDFKit. This integration allows users to view and sign documents seamlessly.</Description>
-	<Version>1.4.1</Version>
+	<Version>1.4.2</Version>
 	<!-- NuGet package version -->
-	<AssemblyVersion>1.4.1.0</AssemblyVersion>
+	<AssemblyVersion>1.4.2.0</AssemblyVersion>
 	<!-- Assembly version for API compatibility -->
-	<FileVersion>1.4.1.0</FileVersion>
+	<FileVersion>1.4.2.0</FileVersion>
 	<!-- Windows file version -->
 	<Copyright>Copyright © 2026 Digital Data GmbH. All rights reserved.</Copyright>
 	  
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="DevExpress.Blazor.PdfViewer" Version="25.2.3" />
-    <PackageReference Include="DevExpress.Blazor.Reporting.JSBasedControls" Version="25.2.3" />
-    <PackageReference Include="DevExpress.Blazor.Reporting.Viewer" Version="25.2.3" />
-    <PackageReference Include="DevExpress.Drawing.Skia" Version="25.2.3" />
+    <PackageReference Include="DevExpress.Blazor.PdfViewer" Version="25.2.8" />
+    <PackageReference Include="DevExpress.Blazor.Reporting.JSBasedControls" Version="25.2.8" />
+    <PackageReference Include="DevExpress.Blazor.Reporting.Viewer" Version="25.2.8" />
+    <PackageReference Include="DevExpress.Drawing.Skia" Version="25.2.8" />
     <PackageReference Include="HarfBuzzSharp.NativeAssets.WebAssembly" Version="8.3.1.2" />
+    <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.28" />
+    <PackageReference Include="Microsoft.Extensions.Localization" Version="8.0.11" />
     <PackageReference Include="SkiaSharp.NativeAssets.WebAssembly" Version="3.119.1" />
     <PackageReference Include="SkiaSharp.Views.Blazor" Version="3.119.1" />
     <NativeFileReference Include="$(HarfBuzzSharpStaticLibraryPath)\2.0.23\*.a" />
@@ -40,6 +42,9 @@
   <ItemGroup>
     <Folder Include="Properties\PublishProfiles\" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\EnvelopeGenerator.Application\EnvelopeGenerator.Application.csproj" />
+  </ItemGroup>
   <ItemGroup>
     <Content Update="wwwroot\docs\privacy-policy.en-US.html">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>

EnvelopeGenerator.ReceiverUI/Models/AnnotationDto.cs

@@ -1,32 +0,0 @@
-namespace EnvelopeGenerator.ReceiverUI.Models;
-
-/// <summary>
-/// Represents a pre-assigned signature annotation position on a specific page.
-/// <br/><br/>
-/// <b>Coordinate unit (X, Y):</b> Inches (GdPicture14 native unit),
-/// origin at the <b>top-left</b> corner of the page, both axes increase downward/rightward.
-/// <br/><br/>
-/// <b>Conversion to DevExpress:</b> Multiply by 100 (DX uses 1/100 inch).
-/// Convert: <c>xDX = xInches * 100.0</c>
-/// <br/>
-/// <b>Conversion to PDF Points:</b> Multiply by 72 (1 inch = 72 points).
-/// Convert: <c>xPt = xInches * 72.0</c>
-/// <br/>
-/// <b>Y-axis for PDF (bottom-left origin):</b> Flip required for iText7.
-/// Convert: <c>yPt = (pageHeightInches - yInches - elemHeightInches) * 72.0</c>
-/// </summary>
-[Obsolete("Use SignatureDto with SignatureService.")]
-public record AnnotationDto
-{
-    /// <summary>Unique identifier of the annotation.</summary>
-    public long Id { get; init; }
-
-    /// <summary>1-based page number within the document.</summary>
-    public int Page { get; init; }
-
-    /// <summary>Horizontal position in INCHES from the left edge of the page.</summary>
-    public double X { get; init; }
-
-    /// <summary>Vertical position in INCHES from the top edge of the page.</summary>
-    public double Y { get; init; }
-}

EnvelopeGenerator.ReceiverUI/Models/EnvelopeDto.cs

@@ -0,0 +1,39 @@
+using System.Text.Json.Serialization;
+
+namespace EnvelopeGenerator.ReceiverUI.Models;
+
+public class EnvelopeDto
+{
+    [JsonPropertyName("id")]
+    public int Id { get; set; }
+
+    [JsonPropertyName("uuid")]
+    public string? Uuid { get; set; }
+
+    [JsonPropertyName("title")]
+    public string? Title { get; set; }
+
+    [JsonPropertyName("status")]
+    public int Status { get; set; }
+
+    [JsonPropertyName("docResult")]
+    public byte[]? DocResult { get; set; }
+
+    [JsonPropertyName("envelopeReceivers")]
+    public List<EnvelopeReceiverSimpleDto> EnvelopeReceivers { get; set; } = new();
+}
+
+/// <summary>
+/// Simplified receiver model for envelope list display
+/// </summary>
+public class EnvelopeReceiverSimpleDto
+{
+    [JsonPropertyName("name")]
+    public string? Name { get; set; }
+
+    [JsonPropertyName("email")]
+    public string? Email { get; set; }
+
+    [JsonPropertyName("signed")]
+    public bool Signed { get; set; }
+}

EnvelopeGenerator.ReceiverUI/Pages/EnvelopeReceiverPage.razor

@@ -11,7 +11,7 @@
 @inject IOptions<ApiOptions> AppOptions
 @inject IOptions<PdfViewerOptions> PdfViewerOptions
 @inject IJSRuntime JSRuntime
-@inject SignatureService SignatureService
+@inject DocReceiverElementService SignatureService
 @inject SignatureCacheService SignatureCacheService
 @inject EnvelopeGenerator.ReceiverUI.Services.AuthService AuthService
 @inject EnvelopeGenerator.ReceiverUI.Services.EnvelopeReceiverService EnvelopeReceiverService

EnvelopeGenerator.ReceiverUI/Pages/EnvelopeReceiverPage_DxPdfViewer.razor

@@ -0,0 +1,112 @@
+@page "/envelope/DxPdfViewer"
+@using System.IO
+@using DevExpress.Blazor
+@using System.Reflection
+
+<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
+
+<style>
+    .custom-drop-zone {
+        padding: 0 !important;
+        border-style: dashed;
+        border-width: 2px !important;
+        height: 230px;
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        background-color: rgba(183, 183, 183, 0.1);
+    }
+
+        .custom-drop-zone.custom-drop-zone-hover {
+            border-style: solid;
+        }
+
+        .custom-drop-zone svg {
+            width: 42px;
+            height: 42px;
+        }
+
+        .custom-drop-zone > *:not(#overviewDemoSelectButton) {
+            pointer-events: none;
+        }
+
+    .pdf-viewer {
+        height: 800px !important;
+        min-height: 800px !important;
+    }
+
+    .pdf-viewer .dxbrv-surface-wrapper,
+    .pdf-viewer .dxbrv-document-surface {
+        height: 100% !important;
+        min-height: 750px !important;
+    }
+
+    .pdf-viewer .dxbrv-report-preview-content {
+        width: auto !important;
+        height: auto !important;
+        min-width: 200px !important;
+        min-height: 200px !important;
+    }
+</style>
+
+<div id="overviewDemoDropZone" class="card custom-drop-zone rounded-3 w-100 m-0">
+    <span class="drop-file-icon mb-3"></span>
+    <span class="drop-file-label">Drag and Drop File Here</span><span class="m-1">or</span>
+    <DxButton Id="overviewDemoSelectButton"
+              CssClass="m-1"
+              RenderStyle="ButtonRenderStyle.Primary"
+              Text="Select File" />
+</div>
+<DxFileInput @ref="fileInput"
+             AcceptedFileTypes="@ALLOWED_FILE_TYPES"
+             AllowedFileExtensions="@ALLOWED_FILE_TYPES"
+             CssClass="w-100"
+             ExternalDropZoneCssSelector="#overviewDemoDropZone"
+             ExternalDropZoneDragOverCssClass="custom-drop-zone-hover"
+             ExternalSelectButtonCssSelector="#overviewDemoSelectButton"
+             FilesUploading="OnFilesUploading"
+             MaxFileSize="2000000">
+</DxFileInput>
+
+@if (DocumentContent != null && DocumentContent.Length > 0)
+{
+    <div class="alert alert-success mt-3">
+        PDF loaded: @DocumentContent.Length bytes
+    </div>
+    <DxPdfViewer CssClass="w-100 pdf-viewer" DocumentContent="@DocumentContent" />
+}
+else
+{
+    <div class="alert alert-info mt-3">
+        Please upload a PDF file to view it.
+    </div>
+}
+
+@code {
+    readonly List<string> ALLOWED_FILE_TYPES = new List<string> { ".pdf" };
+    DxFileInput fileInput;
+    byte[] DocumentContent { get; set; }
+    protected override void OnInitialized()
+    {
+        Assembly assembly = Assembly.GetExecutingAssembly();
+        Stream stream = assembly.GetManifestResourceStream("EnvelopeGenerator.ReceiverUI.Resources.Invoice.pdf");
+        if (stream != null)
+        {
+            using (stream)
+            using (var binaryReader = new BinaryReader(stream))
+                DocumentContent = binaryReader.ReadBytes((int)stream.Length);
+        }
+    }
+    protected async Task OnFilesUploading(FilesUploadingEventArgs args)
+    {
+        using (MemoryStream stream = new MemoryStream())
+        {
+            IFileInputSelectedFile file = args.Files[0];
+            await file.OpenReadStream(file.Size).CopyToAsync(stream);
+            DocumentContent = stream.ToArray();
+            await InvokeAsync(StateHasChanged);
+        }
+    }
+}
+

EnvelopeGenerator.ReceiverUI/Pages/EnvelopeReceiverPage_embed.razor

@@ -0,0 +1,123 @@
+@page "/envelope/Embed"
+@using System.IO
+@using DevExpress.Blazor
+@using System.Reflection
+
+<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
+
+<style>
+    .custom-drop-zone {
+        padding: 0 !important;
+        border-style: dashed;
+        border-width: 2px !important;
+        height: 230px;
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        background-color: rgba(183, 183, 183, 0.1);
+    }
+
+        .custom-drop-zone.custom-drop-zone-hover {
+            border-style: solid;
+        }
+
+        .custom-drop-zone svg {
+            width: 42px;
+            height: 42px;
+        }
+
+        .custom-drop-zone > *:not(#overviewDemoSelectButton) {
+            pointer-events: none;
+        }
+
+    .pdf-viewer {
+        height: 800px !important;
+        min-height: 800px !important;
+    }
+
+    .pdf-viewer .dxbrv-surface-wrapper,
+    .pdf-viewer .dxbrv-document-surface {
+        height: 100% !important;
+        min-height: 750px !important;
+    }
+
+    .pdf-viewer .dxbrv-report-preview-content {
+        width: auto !important;
+        height: auto !important;
+        min-width: 200px !important;
+        min-height: 200px !important;
+    }
+</style>
+
+<div id="overviewDemoDropZone" class="card custom-drop-zone rounded-3 w-100 m-0">
+    <span class="drop-file-icon mb-3"></span>
+    <span class="drop-file-label">Drag and Drop File Here</span><span class="m-1">or</span>
+    <DxButton Id="overviewDemoSelectButton"
+              CssClass="m-1"
+              RenderStyle="ButtonRenderStyle.Primary"
+              Text="Select File" />
+</div>
+<DxFileInput @ref="fileInput"
+             AcceptedFileTypes="@ALLOWED_FILE_TYPES"
+             AllowedFileExtensions="@ALLOWED_FILE_TYPES"
+             CssClass="w-100"
+             ExternalDropZoneCssSelector="#overviewDemoDropZone"
+             ExternalDropZoneDragOverCssClass="custom-drop-zone-hover"
+             ExternalSelectButtonCssSelector="#overviewDemoSelectButton"
+             FilesUploading="OnFilesUploading"
+             MaxFileSize="2000000">
+</DxFileInput>
+
+@if (DocumentContent != null && DocumentContent.Length > 0)
+{
+    <div class="alert alert-success mt-3">
+        PDF loaded: @DocumentContent.Length bytes
+    </div>
+    <embed src="@GetPdfDataUrl()" type="application/pdf" class="w-100 pdf-viewer" />
+}
+else
+{
+    <div class="alert alert-info mt-3">
+        Please upload a PDF file to view it.
+    </div>
+}
+
+@code {
+    readonly List<string> ALLOWED_FILE_TYPES = new List<string> { ".pdf" };
+    DxFileInput fileInput;
+    byte[] DocumentContent { get; set; }
+    
+    protected override void OnInitialized()
+    {
+        Assembly assembly = Assembly.GetExecutingAssembly();
+        Stream stream = assembly.GetManifestResourceStream("EnvelopeGenerator.ReceiverUI.Resources.Invoice.pdf");
+        if (stream != null)
+        {
+            using (stream)
+            using (var binaryReader = new BinaryReader(stream))
+                DocumentContent = binaryReader.ReadBytes((int)stream.Length);
+        }
+    }
+    
+    protected async Task OnFilesUploading(FilesUploadingEventArgs args)
+    {
+        using (MemoryStream stream = new MemoryStream())
+        {
+            IFileInputSelectedFile file = args.Files[0];
+            await file.OpenReadStream(file.Size).CopyToAsync(stream);
+            DocumentContent = stream.ToArray();
+            await InvokeAsync(StateHasChanged);
+        }
+    }
+    
+    private string GetPdfDataUrl()
+    {
+        if (DocumentContent == null || DocumentContent.Length == 0)
+            return string.Empty;
+        
+        string base64 = Convert.ToBase64String(DocumentContent);
+        return $"data:application/pdf;base64,{base64}#toolbar=0&navpanes=0&scrollbar=1";
+    }
+}
+

EnvelopeGenerator.ReceiverUI/Pages/EnvelopeSenderPage.razor

@@ -1,7 +1,442 @@
 @page "/sender"
+@attribute [Microsoft.AspNetCore.Authorization.Authorize(Policy = "Sender")]
 
-<h3>EnvelopeSender</h3>
+@using System.Text.Json
+@using EnvelopeGenerator.Domain.Constants
+@using EnvelopeGenerator.ReceiverUI.Models
+@using DevExpress.Blazor
+@using EnvelopeGenerator.ReceiverUI.Services
+@inject EnvelopeGenerator.ReceiverUI.Services.EnvelopeService EnvelopeService
+@inject EnvelopeGenerator.ReceiverUI.Services.AuthService AuthService
+@inject NavigationManager Navigation
+@inject IJSRuntime JSRuntime
+@inject AppVersionService AppVersion
+
+<link href="_content/DevExpress.Blazor.Themes/blazing-berry.bs5.min.css" rel="stylesheet" />
+<link href="@AppVersion.GetVersionedUrl("css/envelope-viewer.css")" rel="stylesheet" />
+<link href="@AppVersion.GetVersionedUrl("css/sender-page.css")" rel="stylesheet" />
+
+<div class="sender-dashboard-layout">
+    <div class="sender-action-bar">
+        <div class="sender-action-bar__inner">
+            <div class="sender-title-section">
+                <div class="sender-logo">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" fill="currentColor" viewBox="0 0 16 16">
+                        <path d="M0 4a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V4Zm2-1a1 1 0 0 0-1 1v.217l7 4.2 7-4.2V4a1 1 0 0 0-1-1H2Zm13 2.383-4.708 2.825L15 11.105V5.383Zm-.034 6.876-5.64-3.471L8 9.583l-1.326-.795-5.64 3.47A1 1 0 0 0 2 13h12a1 1 0 0 0 .966-.741ZM1 11.105l4.708-2.897L1 5.383v5.722Z"/>
+                    </svg>
+                </div>
+                <div class="sender-title">Umschlag-Übersicht</div>
+            </div>
+
+            <div class="sender-toolbar">
+                <button class="sender-btn sender-btn--primary" @onclick="CreateEnvelope" title="Neuen Umschlag erstellen">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
+                        <path d="M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z"/>
+                    </svg>
+                    Neuer Umschlag
+                </button>
+
+                <button class="sender-btn" @onclick="EditEnvelope" disabled="@(_selectedEnvelope == null || IsEnvelopeSent(_selectedEnvelope))" title="Ausgewählten Umschlag bearbeiten">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
+                        <path d="M12.146.146a.5.5 0 0 1 .708 0l3 3a.5.5 0 0 1 0 .708l-10 10a.5.5 0 0 1-.168.11l-5 2a.5.5 0 0 1-.65-.65l2-5a.5.5 0 0 1 .11-.168l10-10zM11.207 2.5 13.5 4.793 14.793 3.5 12.5 1.207 11.207 2.5zm1.586 3L10.5 3.207 4 9.707V10h.5a.5.5 0 0 1 .5.5v.5h.5a.5.5 0 0 1 .5.5v.5h.293l6.5-6.5zm-9.761 5.175-.106.106-1.528 3.821 3.821-1.528.106-.106A.5.5 0 0 1 5 12.5V12h-.5a.5.5 0 0 1-.5-.5V11h-.5a.5.5 0 0 1-.468-.325z"/>
+                    </svg>
+                    Bearbeiten
+                </button>
+
+                <button class="sender-btn sender-btn--danger" @onclick="DeleteEnvelope" disabled="@(_selectedEnvelope == null)" title="Ausgewählten Umschlag löschen">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
+                        <path d="M5.5 5.5A.5.5 0 0 1 6 6v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm2.5 0a.5.5 0 0 1 .5.5v6a.5.5 0 0 1-1 0V6a.5.5 0 0 1 .5-.5zm3 .5a.5.5 0 0 0-1 0v6a.5.5 0 0 0 1 0V6z"/>
+                        <path fill-rule="evenodd" d="M14.5 3a1 1 0 0 1-1 1H13v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V4h-.5a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1H6a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1h3.5a1 1 0 0 1 1 1v1zM4.118 4 4 4.059V13a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V4.059L11.882 4H4.118zM2.5 3V2h11v1h-11z"/>
+                    </svg>
+                    Löschen
+                </button>
+
+                <button class="sender-btn" @onclick="RefreshEnvelopes" disabled="@_isLoading" title="Aktualisieren">
+                    <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
+                        <path fill-rule="evenodd" d="M8 3a5 5 0 1 0 4.546 2.914.5.5 0 0 1 .908-.417A6 6 0 1 1 8 2v1z"/>
+                        <path d="M8 4.466V.534a.25.25 0 0 1 .41-.192l2.36 1.966c.12.1.12.284 0 .384L8.41 4.658A.25.25 0 0 1 8 4.466z"/>
+                    </svg>
+                    @if (_isLoading) {
+                        <span class="spinner-border spinner-border-sm" style="width: 14px; height: 14px;"></span>
+                    }
+                </button>
+
+                <button class="sender-btn sender-btn--logout" @onclick="LogoutAsync" disabled="@_isLoggingOut" title="Abmelden">
+                    @if (_isLoggingOut) {
+                        <span class="spinner-border spinner-border-sm" style="width: 14px; height: 14px;"></span>
+                    } else {
+                        <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" viewBox="0 0 16 16">
+                            <path fill-rule="evenodd" d="M10 12.5a.5.5 0 0 1-.5.5h-8a.5.5 0 0 1-.5-.5v-9a.5.5 0 0 1 .5-.5h8a.5.5 0 0 1 .5.5v2a.5.5 0 0 0 1 0v-2A1.5 1.5 0 0 0 9.5 2h-8A1.5 1.5 0 0 0 0 3.5v9A1.5 1.5 0 0 0 1.5 14h8a1.5 1.5 0 0 0 1.5-1.5v-2a.5.5 0 0 0-1 0v2z"/>
+                            <path fill-rule="evenodd" d="M15.854 8.354a.5.5 0 0 0 0-.708l-3-3a.5.5 0 0 0-.708.708L14.293 7.5H5.5a.5.5 0 0 0 0 1h8.793l-2.147 2.146a.5.5 0 0 0 .708.708l3-3z"/>
+                        </svg>
+                    }
+                </button>
+            </div>
+        </div>
+    </div>
+
+    <div class="sender-content">
+        @if (_isLoading && _allEnvelopes == null) {
+            <div class="d-flex justify-content-center align-items-center h-100">
+                <div class="text-center">
+                    <div class="spinner-border text-white mb-3" style="width: 3.5rem; height: 3.5rem;" role="status">
+                        <span class="visually-hidden">Lädt...</span>
+                    </div>
+                    <p class="text-white fw-semibold">Umschläge werden geladen...</p>
+                </div>
+            </div>
+        } else if (_errorMessage != null) {
+            <div class="error-container">
+                <div class="alert alert-danger shadow-lg">
+                    <div class="d-flex align-items-start">
+                        <svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" fill="currentColor" class="me-3 flex-shrink-0" viewBox="0 0 16 16">
+                            <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
+                            <path d="M7.002 11a1 1 0 1 1 2 0 1 1 0 0 1-2 0zM7.1 4.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 4.995z"/>
+                        </svg>
+                        <div>
+                            <h5 class="mb-2">Fehler beim Laden der Umschläge</h5>
+                            <p class="mb-0">@_errorMessage</p>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        } else {
+            <div class="sender-grid-container">
+                <div class="sender-tabs">
+                    <button class="sender-tab @(_activeTab == "active" ? "sender-tab--active" : "")" @onclick='() => _activeTab = "active"'>
+                        <span>Aktive Umschläge</span>
+                        @if (_activeEnvelopes != null) {
+                            <span style="opacity: 0.6; margin-left: 0.5rem;">(@_activeEnvelopes.Count())</span>
+                        }
+                    </button>
+                    <button class="sender-tab @(_activeTab == "completed" ? "sender-tab--active" : "")" @onclick='() => _activeTab = "completed"'>
+                        <span>Abgeschlossene Umschläge</span>
+                        @if (_completedEnvelopes != null) {
+                            <span style="opacity: 0.6; margin-left: 0.5rem;">(@_completedEnvelopes.Count())</span>
+                        }
+                    </button>
+                </div>
+
+                <div class="sender-grid-wrapper">
+                    @if (_activeTab == "active") {
+                        <DxGrid Data="@_activeEnvelopes"
+                                @ref="_gridActive"
+                                ShowFilterRow="true"
+                                ShowSearchBox="true"
+                                AllowColumnReorder="true"
+                                AllowSort=true
+                                ColumnResizeMode="GridColumnResizeMode.ColumnsContainer"
+                                PageSize="20"
+                                PagerVisible="true"
+                                SelectionMode="GridSelectionMode.Single"
+                                SelectedDataItem="@_selectedEnvelope"
+                                SelectedDataItemChanged="@OnSelectedEnvelopeChanged"
+                                CustomizeElement="OnCustomizeElement">
+                            <Columns>
+                                <DxGridDataColumn FieldName="Id" Caption="ID">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @((cellContext.DataItem as EnvelopeDto)?.Id)
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="Title" Caption="Titel">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        <strong>@((cellContext.DataItem as EnvelopeDto)?.Title)</strong>
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="Status" Caption="Status">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @{
+                                            var envelope = cellContext.DataItem as EnvelopeDto;
+                                            if (envelope != null) {
+                                                var statusInfo = GetStatusInfo(envelope.Status);
+                                                <div class="status-badge status-badge--@statusInfo.CssClass">
+                                                    <span class="status-dot status-dot--@statusInfo.DotColor"></span>
+                                                    @statusInfo.Label
+                                                </div>
+                                            }
+                                        }
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="EnvelopeReceivers" Caption="Empfänger">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @{
+                                            var envelope = cellContext.DataItem as EnvelopeDto;
+                                            if (envelope != null) {
+                                                var receivers = envelope.EnvelopeReceivers ?? new List<EnvelopeReceiverSimpleDto>();
+                                                var signed = receivers.Count(r => r.Signed);
+                                                var total = receivers.Count;
+                                                <div style="display: flex; align-items: center; gap: 0.5rem;">
+                                                    <span style="font-size: 0.875rem; color: #6b7280;">
+                                                        @signed / @total unterschrieben
+                                                    </span>
+                                                    @if (total > 0) {
+                                                        <div style="flex: 1; min-width: 60px; max-width: 120px; height: 6px; background: #e5e7eb; border-radius: 3px; overflow: hidden;">
+                                                            <div style="height: 100%; background: linear-gradient(90deg, #81c784 0%, #66bb6a 100%); width: @((signed * 100.0 / total).ToString("F0"))%;"></div>
+                                                        </div>
+                                                    }
+                                                </div>
+                                            }
+                                        }
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                            </Columns>
+                            <DetailRowTemplate Context="detailContext">
+                                <div style="padding: 1rem; background: #f9fafb;">
+                                    <h6 style="font-weight: 600; color: #374151; margin-bottom: 0.75rem;">Empfänger</h6>
+                                    @{
+                                        var envelope = detailContext.DataItem as EnvelopeDto;
+                                        if (envelope?.EnvelopeReceivers?.Any() == true) {
+                                            <div style="display: flex; flex-direction: column; gap: 0.5rem;">
+                                                @foreach (var receiver in envelope.EnvelopeReceivers) {
+                                                    <div style="display: flex; align-items: center; gap: 1rem; padding: 0.5rem; background: white; border-radius: 6px; border: 1px solid #e5e7eb;">
+                                                        <span class="receiver-badge receiver-badge--@(receiver.Signed ? "signed" : "unsigned")" style="min-width: 100px;">
+                                                            @if (receiver.Signed) {
+                                                                <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
+                                                                    <path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
+                                                                </svg>
+                                                                <span>Unterschrieben</span>
+                                                            } else {
+                                                                <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
+                                                                    <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
+                                                                    <path d="M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z"/>
+                                                                </svg>
+                                                                <span>Ausstehend</span>
+                                                            }
+                                                        </span>
+                                                        <div style="flex: 1; font-size: 0.875rem;">
+                                                            <strong style="color: #1f2937;">@receiver.Name</strong>
+                                                            <span style="color: #6b7280; margin-left: 0.5rem;">@receiver.Email</span>
+                                                        </div>
+                                                    </div>
+                                                }
+                                            </div>
+                                        } else {
+                                            <p style="color: #9ca3af; font-size: 0.875rem; margin: 0;">Keine Empfänger</p>
+                                        }
+                                    }
+                                </div>
+                            </DetailRowTemplate>
+                        </DxGrid>
+                    } else {
+                        <DxGrid Data="@_completedEnvelopes"
+                                @ref="_gridCompleted"
+                                ShowFilterRow="true"
+                                ShowSearchBox="true"
+                                PageSize="20"
+                                PagerVisible="true"
+                                SelectionMode="GridSelectionMode.Single"
+                                SelectedDataItem="@_selectedEnvelope"
+                                SelectedDataItemChanged="@OnSelectedEnvelopeChanged"
+                                CustomizeElement="OnCustomizeElement">
+                            <Columns>
+                                <DxGridDataColumn FieldName="Id" Caption="ID">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @((cellContext.DataItem as EnvelopeDto)?.Id)
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="Title" Caption="Titel">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        <strong>@((cellContext.DataItem as EnvelopeDto)?.Title)</strong>
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="Status" Caption="Status">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @{
+                                            var envelope = cellContext.DataItem as EnvelopeDto;
+                                            if (envelope != null) {
+                                                var statusInfo = GetStatusInfo(envelope.Status);
+                                                <div class="status-badge status-badge--@statusInfo.CssClass">
+                                                    <span class="status-dot status-dot--@statusInfo.DotColor"></span>
+                                                    @statusInfo.Label
+                                                </div>
+                                            }
+                                        }
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                                <DxGridDataColumn FieldName="EnvelopeReceivers" Caption="Empfänger">
+                                    <CellDisplayTemplate Context="cellContext">
+                                        @{
+                                            var envelope = cellContext.DataItem as EnvelopeDto;
+                                            if (envelope != null) {
+                                                var receivers = envelope.EnvelopeReceivers ?? new List<EnvelopeReceiverSimpleDto>();
+                                                var signed = receivers.Count(r => r.Signed);
+                                                var total = receivers.Count;
+                                                <div style="display: flex; align-items: center; gap: 0.5rem;">
+                                                    <span style="font-size: 0.875rem; color: #6b7280;">
+                                                        @signed / @total unterschrieben
+                                                    </span>
+                                                    @if (total > 0) {
+                                                        <div style="flex: 1; min-width: 60px; max-width: 120px; height: 6px; background: #e5e7eb; border-radius: 3px; overflow: hidden;">
+                                                            <div style="height: 100%; background: linear-gradient(90deg, #81c784 0%, #66bb6a 100%); width: @((signed * 100.0 / total).ToString("F0"))%;"></div>
+                                                        </div>
+                                                    }
+                                                </div>
+                                            }
+                                        }
+                                    </CellDisplayTemplate>
+                                </DxGridDataColumn>
+                            </Columns>
+                            <DetailRowTemplate Context="detailContext">
+                                <div style="padding: 1rem; background: #f9fafb;">
+                                    <h6 style="font-weight: 600; color: #374151; margin-bottom: 0.75rem;">Empfänger</h6>
+                                    @{
+                                        var envelope = detailContext.DataItem as EnvelopeDto;
+                                        if (envelope?.EnvelopeReceivers?.Any() == true) {
+                                            <div style="display: flex; flex-direction: column; gap: 0.5rem;">
+                                                @foreach (var receiver in envelope.EnvelopeReceivers) {
+                                                    <div style="display: flex; align-items: center; gap: 1rem; padding: 0.5rem; background: white; border-radius: 6px; border: 1px solid #e5e7eb;">
+                                                        <span class="receiver-badge receiver-badge--@(receiver.Signed ? "signed" : "unsigned")" style="min-width: 100px;">
+                                                            @if (receiver.Signed) {
+                                                                <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
+                                                                    <path d="M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z"/>
+                                                                </svg>
+                                                                <span>Unterschrieben</span>
+                                                            } else {
+                                                                <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" fill="currentColor" viewBox="0 0 16 16">
+                                                                    <path d="M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14zm0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16z"/>
+                                                                    <path d="M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z"/>
+                                                                </svg>
+                                                                <span>Ausstehend</span>
+                                                            }
+                                                        </span>
+                                                        <div style="flex: 1; font-size: 0.875rem;">
+                                                            <strong style="color: #1f2937;">@receiver.Name</strong>
+                                                            <span style="color: #6b7280; margin-left: 0.5rem;">@receiver.Email</span>
+                                                        </div>
+                                                    </div>
+                                                }
+                                            </div>
+                                        } else {
+                                            <p style="color: #9ca3af; font-size: 0.875rem; margin: 0;">Keine Empfänger</p>
+                                        }
+                                    }
+                                </div>
+                            </DetailRowTemplate>
+                        </DxGrid>
+                    }
+                </div>
+            </div>
+        }
+    </div>
+</div>
 
 @code {
+    private IEnumerable<EnvelopeDto>? _allEnvelopes;
+    private IEnumerable<EnvelopeDto>? _activeEnvelopes;
+    private IEnumerable<EnvelopeDto>? _completedEnvelopes;
+    private EnvelopeDto? _selectedEnvelope;
+    private string _activeTab = "active";
+    private bool _isLoading = true;
+    private bool _isLoggingOut = false;
+    private string? _errorMessage;
+    private DxGrid? _gridActive;
+    private DxGrid? _gridCompleted;
 
+    protected override async Task OnInitializedAsync()
+    {
+        var hasAccess = await AuthService.CheckSenderAsync();
+        if (!hasAccess)
+        {
+            Navigation.NavigateTo($"/sender/login");
+            return;
+        }
+
+        await LoadEnvelopesAsync();
+    }
+
+    async Task LoadEnvelopesAsync()
+    {
+        _isLoading = true;
+        _errorMessage = null;
+        await InvokeAsync(StateHasChanged);
+
+        try
+        {
+            _allEnvelopes = await EnvelopeService.GetAsync() ?? [];
+            
+            // Split into active and completed based on status
+            var envelopes = _allEnvelopes.ToList();
+            _activeEnvelopes = envelopes.Where(e => ((EnvelopeStatus)e.Status).IsActive()).ToList();
+            _completedEnvelopes = envelopes.Where(e => ((EnvelopeStatus)e.Status).IsCompleted()).ToList();
+
+            await JSRuntime.InvokeVoidAsync("console.log", $"Loaded {_activeEnvelopes.Count()} active and {_completedEnvelopes.Count()} completed envelopes");
+        }
+        catch (Exception ex)
+        {
+            _errorMessage = ex.Message;
+            await JSRuntime.InvokeVoidAsync("console.error", "Fehler beim Laden der Umschläge:", ex.ToString());
+        }
+        finally
+        {
+            _isLoading = false;
+            await InvokeAsync(StateHasChanged);
+        }
+    }
+
+    async Task RefreshEnvelopes()
+    {
+        await LoadEnvelopesAsync();
+    }
+
+    void CreateEnvelope()
+    {
+        // TODO: Navigate to envelope creation page
+        JSRuntime.InvokeVoidAsync("console.log", "Create envelope clicked - not yet implemented");
+    }
+
+    void EditEnvelope()
+    {
+        if (_selectedEnvelope == null) return;
+        // TODO: Navigate to envelope editor
+        JSRuntime.InvokeVoidAsync("console.log", $"Edit envelope {_selectedEnvelope.Id} clicked - not yet implemented");
+    }
+
+    void DeleteEnvelope()
+    {
+        if (_selectedEnvelope == null) return;
+        // TODO: Show delete confirmation dialog
+        JSRuntime.InvokeVoidAsync("console.log", $"Delete envelope {_selectedEnvelope.Id} clicked - not yet implemented");
+    }
+
+    async Task LogoutAsync()
+    {
+        _isLoggingOut = true;
+        await InvokeAsync(StateHasChanged);
+        await AuthService.LogoutSenderAsync();
+        Navigation.NavigateTo("/sender/login", forceLoad: true);
+    }
+
+    bool IsEnvelopeSent(EnvelopeDto envelope)
+    {
+        var status = (EnvelopeStatus)envelope.Status;
+        return status >= EnvelopeStatus.EnvelopeQueued;
+    }
+
+    (string Label, string CssClass, string DotColor) GetStatusInfo(int statusCode)
+    {
+        var status = (EnvelopeStatus)statusCode;
+        return status switch
+        {
+            EnvelopeStatus.EnvelopePartlySigned => ("Teilweise unterschrieben", "partly-signed", "green"),
+            EnvelopeStatus.EnvelopeQueued => ("In Warteschlange", "queued", "orange"),
+            EnvelopeStatus.EnvelopeSent => ("Gesendet", "sent", "orange"),
+            EnvelopeStatus.EnvelopeCompletelySigned => ("Vollständig unterschrieben", "completed", "green"),
+            EnvelopeStatus.EnvelopeDeleted => ("Gelöscht", "deleted", "red"),
+            EnvelopeStatus.EnvelopeRejected => ("Abgelehnt", "rejected", "red"),
+            EnvelopeStatus.EnvelopeWithdrawn => ("Zurückgezogen", "withdrawn", "red"),
+            EnvelopeStatus.EnvelopeCreated => ("Erstellt", "created", "blue"),
+            EnvelopeStatus.EnvelopeSaved => ("Gespeichert", "saved", "blue"),
+            _ => ("Unbekannt", "unknown", "blue")
+        };
+    }
+
+    void OnCustomizeElement(GridCustomizeElementEventArgs e)
+    {
+        // Future: Add custom row coloring based on status if needed
+    }
+
+    void OnSelectedEnvelopeChanged(object envelope)
+    {
+        _selectedEnvelope = envelope as EnvelopeDto;
+    }
 }

EnvelopeGenerator.ReceiverUI/Pages/Example/ReportViewer.razor

@@ -6,6 +6,7 @@
 @using DevExpress.Utils
 @using DevExpress.XtraPrinting
 @using DevExpress.XtraPrinting.Drawing
+@using EnvelopeGenerator.Application.Common.Dto
 @using Microsoft.JSInterop
 @using XtraReport = DevExpress.XtraReports.UI.XtraReport
 @using BottomMarginBand = DevExpress.XtraReports.UI.BottomMarginBand
@@ -301,7 +302,10 @@ Shown="OnPopupShownAsync">
     bool IsLoggingOut;
 
     IReadOnlyList<AnnotationDto> _annotations = [];
-    IEnumerable<int> AnnotationPages => _annotations.Select(a => a.Page).Distinct().OrderBy(p => p);
+    IEnumerable<int> AnnotationPages => _annotations
+    .Select(a => a.Page ?? throw new InvalidOperationException($"Annotation page is missing for annotation ID {a.Id}. Annotation details: X={a.X}, Y={a.Y}"))
+    .Distinct()
+    .OrderBy(p => p);
     EnvelopeReceiverDto? _envelopeReceiver;
     record SignatureCapture(string DataUrl, string FullName, string Position, string Place);
     SignatureCapture? _capturedSignature;

EnvelopeGenerator.ReceiverUI/Program.cs

@@ -7,6 +7,9 @@ using EnvelopeGenerator.ReceiverUI.Options;
 using DevExpress.XtraReports.Services;
 using DevExpress.Blazor.Reporting;
 using DevExpress.XtraReports.Web.Extensions;
+using EnvelopeGenerator.Application.Resources;
+using Microsoft.Extensions.Localization;
+using System.Globalization;
 
 var builder = WebAssemblyHostBuilder.CreateDefault(args);
 builder.RootComponents.Add<App>("#app");
@@ -20,9 +23,14 @@ builder.Services.AddScoped<DocumentService>();
 builder.Services.AddScoped<AuthService>();
 builder.Services.AddScoped<AnnotationService>();
 builder.Services.AddScoped<EnvelopeReceiverService>();
-builder.Services.AddScoped<SignatureService>();
+builder.Services.AddScoped<DocReceiverElementService>();
 builder.Services.AddScoped<SignatureCacheService>();
 builder.Services.AddSingleton<AppVersionService>();
+builder.Services.AddScoped<EnvelopeService>();
+builder.Services.AddScoped<CultureService>();
+
+// Localization services
+builder.Services.AddLocalization();
 
 builder.Services.AddDevExpressWebAssemblyBlazorReportViewer();
 builder.Services.AddDevExpressWebAssemblyBlazorPdfViewer();
@@ -41,5 +49,30 @@ builder.Services.AddScoped<IReportProviderAsync, CustomReportProvider>();
 ReportStorageWebExtension.RegisterExtensionGlobal(new InMemoryReportStorageWebExtension());
 
 var host = builder.Build();
+
+// ⚠️ IMPORTANT: BLAZOR WASM-SPECIFIC CULTURE INITIALIZATION
+// This approach sets DefaultThreadCurrentCulture globally, which is SAFE for WebAssembly
+// because each user runs their own isolated app instance in their browser.
+// 
+// ⚠️ TODO: REMOVE/REFACTOR WHEN MIGRATING TO BLAZOR SERVER/AUTO
+// In Server/Auto render modes, this is DANGEROUS because:
+// - Server runs a single shared instance for all users
+// - Setting global culture affects ALL connected users simultaneously
+// - Race conditions and culture conflicts will occur
+//
+// Migration Guide:
+// - Option 1: Use RequestLocalizationMiddleware for per-request culture
+// - Option 2: Use CascadingParameter with per-circuit culture state
+// - See: https://learn.microsoft.com/aspnet/core/blazor/globalization-localization
+//
+// Related files to update on migration:
+// - LanguageSelector.razor (remove manual culture setting)
+// - App.razor (may need CascadingValue for culture)
+// - Startup/Program.cs (add middleware)
+var cultureService = host.Services.GetRequiredService<CultureService>();
+var culture = await cultureService.InitializeCultureAsync();
+CultureInfo.DefaultThreadCurrentCulture = culture;
+CultureInfo.DefaultThreadCurrentUICulture = culture;
+
 await FontLoader.LoadFonts(host.Services.GetRequiredService<HttpClient>(), new List<string> { "opensans.ttf" });
 await host.RunAsync();

EnvelopeGenerator.ReceiverUI/Properties/launchSettings.json

@@ -2,7 +2,7 @@
   "profiles": {
     "EnvelopeGenerator.ReceiverUI": {
       "commandName": "Project",
-      "launchBrowser": true,
+      "launchBrowser": false,
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       },

EnvelopeGenerator.ReceiverUI/Services/AnnotationService.cs

@@ -1,5 +1,6 @@
 using System.Net.Http.Json;
 using System.Text.Json;
+using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.ReceiverUI.Models;
 using EnvelopeGenerator.ReceiverUI.Options;
 using Microsoft.Extensions.Options;

EnvelopeGenerator.ReceiverUI/Services/AuthService.cs

@@ -58,6 +58,16 @@ public class AuthService(HttpClient http, IOptions<ApiOptions> apiOptions)
         return response.IsSuccessStatusCode;
     }
 
+    /// <summary>
+    /// Checks whether the current user holds a valid receiver token for the given envelope key.
+    /// Calls GET /api/auth/check/envelope/{envelopeKey}.
+    /// </summary>
+    public async Task<bool> CheckSenderAsync(CancellationToken cancel = default)
+    {
+        var response = await http.GetAsync($"{_api.BaseUrl}/api/auth/check", cancel);
+        return response.StatusCode == HttpStatusCode.OK;
+    }
+
     /// <summary>
     /// Authenticates a sender user with username and password.
     /// Calls POST /api/auth?cookie=true with JSON body.
@@ -78,4 +88,16 @@ public class AuthService(HttpClient http, IOptions<ApiOptions> apiOptions)
             _ => SenderLoginResult.Error
         };
     }
+
+    /// <summary>
+    /// Logs out the sender user by removing the authentication cookie.
+    /// Calls POST /api/auth/logout.
+    /// </summary>
+    public async Task<bool> LogoutSenderAsync(CancellationToken cancel = default)
+    {
+        var response = await http.PostAsync(
+            $"{_api.BaseUrl}/api/auth/logout",
+            null, cancel);
+        return response.IsSuccessStatusCode;
+    }
 }

EnvelopeGenerator.ReceiverUI/Services/CultureService.cs

@@ -0,0 +1,74 @@
+using System.Globalization;
+using Microsoft.JSInterop;
+
+namespace EnvelopeGenerator.ReceiverUI.Services;
+
+/// <summary>
+/// Service for managing application culture/localization.
+/// </summary>
+public class CultureService
+{
+    private readonly IJSRuntime _jsRuntime;
+    private const string CULTURE_KEY = "AppCulture";
+
+    public CultureService(IJSRuntime jsRuntime)
+    {
+        _jsRuntime = jsRuntime;
+    }
+
+    /// <summary>
+    /// Gets the list of supported cultures.
+    /// </summary>
+    public static CultureInfo[] SupportedCultures { get; } = new[]
+    {
+        new CultureInfo("de-DE"),
+        new CultureInfo("en-US"),
+        new CultureInfo("fr-FR")
+    };
+
+    /// <summary>
+    /// Sets the application culture and stores it in localStorage.
+    /// </summary>
+    public async Task SetCultureAsync(string culture)
+    {
+        if (!SupportedCultures.Any(c => c.Name == culture))
+            throw new ArgumentException($"Culture '{culture}' is not supported.", nameof(culture));
+
+        await _jsRuntime.InvokeVoidAsync("localStorage.setItem", CULTURE_KEY, culture);
+    }
+
+    /// <summary>
+    /// Gets the stored culture from localStorage.
+    /// </summary>
+    public async Task<string?> GetCultureAsync()
+    {
+        try
+        {
+            return await _jsRuntime.InvokeAsync<string?>("localStorage.getItem", CULTURE_KEY);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    /// <summary>
+    /// Initializes the culture from localStorage or browser settings.
+    /// </summary>
+    public async Task<CultureInfo> InitializeCultureAsync()
+    {
+        var storedCulture = await GetCultureAsync();
+        
+        if (!string.IsNullOrEmpty(storedCulture) && 
+            SupportedCultures.Any(c => c.Name == storedCulture))
+        {
+            return new CultureInfo(storedCulture);
+        }
+
+        // Fallback to browser culture or default
+        var browserCulture = CultureInfo.CurrentCulture.Name;
+        var matchedCulture = SupportedCultures.FirstOrDefault(c => c.Name == browserCulture);
+        
+        return matchedCulture ?? SupportedCultures[0]; // Default to German
+    }
+}

EnvelopeGenerator.ReceiverUI/Services/DocReceiverElementService.cs

@@ -6,13 +6,13 @@ using Microsoft.Extensions.Options;
 
 namespace EnvelopeGenerator.ReceiverUI.Services;
 
-public class SignatureService(HttpClient http, IOptions<ApiOptions> apiOptions)
+public class DocReceiverElementService(HttpClient http, IOptions<ApiOptions> apiOptions)
 {
     private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
 
     public async Task<IReadOnlyList<SignatureDto>> GetAsync(string envelopeKey, CancellationToken cancel = default)
     {
-        var url = $"{apiOptions.Value.BaseUrl}/api/Signature/{Uri.EscapeDataString(envelopeKey)}";
+        var url = $"{apiOptions.Value.BaseUrl}/api/DocReceiverElement/{Uri.EscapeDataString(envelopeKey)}";
         var response = await http.GetAsync(url, cancel);
 
         if (!response.IsSuccessStatusCode)

EnvelopeGenerator.ReceiverUI/Services/EnvelopeService.cs

@@ -0,0 +1,72 @@
+using System.Net.Http.Json;
+using System.Text.Json;
+using EnvelopeGenerator.ReceiverUI.Models;
+using EnvelopeGenerator.ReceiverUI.Options;
+using Microsoft.AspNetCore.WebUtilities;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.ReceiverUI.Services;
+
+/// <summary>
+/// Retrieves <see cref="EnvelopeDto"/>s from the API.
+/// </summary>
+public class EnvelopeService
+{
+    private readonly HttpClient _http;
+    private readonly ApiOptions _apiOptions;
+    private static readonly JsonSerializerOptions _jsonOptions = new(JsonSerializerDefaults.Web);
+
+    public EnvelopeService(HttpClient http, IOptions<ApiOptions> apiOptions)
+    {
+        _http = http;
+        _apiOptions = apiOptions.Value;
+    }
+
+    /// <summary>
+    /// Fetches envelopes from the API with optional filters.
+    /// </summary>
+    /// <exception cref="HttpRequestException">Thrown when the API request fails.</exception>
+    public async Task<IEnumerable<EnvelopeDto>?> GetAsync(
+        int? id = null,
+        string? uuid = null,
+        bool? onlyActive = null,
+        bool? onlyCompleted = null,
+        CancellationToken cancel = default)
+    {
+        var baseUrl = $"{_apiOptions.BaseUrl}/api/Envelope";
+        var queryParams = new Dictionary<string, string?>();
+
+        if (id.HasValue)
+        {
+            queryParams["Id"] = id.Value.ToString();
+        }
+        if (!string.IsNullOrEmpty(uuid))
+        {
+            queryParams["Uuid"] = uuid;
+        }
+        if (onlyActive.HasValue)
+        {
+            queryParams["OnlyActive"] = onlyActive.Value.ToString();
+        }
+        if (onlyCompleted.HasValue)
+        {
+            queryParams["OnlyCompleted"] = onlyCompleted.Value.ToString();
+        }
+
+        var url = QueryHelpers.AddQueryString(baseUrl, queryParams);
+
+        var response = await _http.GetAsync(url, cancel);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            var statusCode = (int)response.StatusCode;
+            var reasonPhrase = response.ReasonPhrase ?? "Unknown error";
+            throw new HttpRequestException(
+                $"Failed to load envelopes. Status: {statusCode} ({reasonPhrase})",
+                null,
+                response.StatusCode);
+        }
+
+        return await response.Content.ReadFromJsonAsync<IEnumerable<EnvelopeDto>>(_jsonOptions, cancel);
+    }
+}

EnvelopeGenerator.ReceiverUI/Shared/LanguageSelector.razor

@@ -0,0 +1,80 @@
+@using System.Globalization
+@using EnvelopeGenerator.ReceiverUI.Services
+@inject IJSRuntime JSRuntime
+@inject NavigationManager Navigation
+@inject CultureService CultureService
+
+<div class="language-selector">
+    <button class="language-selector__trigger" @onclick="ToggleDropdown" aria-label="Select Language">
+        <span class="fi fi-@GetFlagCode(CurrentCulture)"></span>
+        <span class="language-selector__arrow">@GetLanguageName(CurrentCulture)</span>
+    </button>
+    
+    @if (isOpen)
+    {
+        <div class="language-selector__dropdown">
+            <button class="language-selector__option" @onclick="@(() => ChangeLanguageAsync("de-DE"))">
+                <span class="fi fi-de"></span>
+                <span>Deutsch</span>
+            </button>
+            <button class="language-selector__option" @onclick="@(() => ChangeLanguageAsync("en-US"))">
+                <span class="fi fi-us"></span>
+                <span>English</span>
+            </button>
+            <button class="language-selector__option" @onclick="@(() => ChangeLanguageAsync("fr-FR"))">
+                <span class="fi fi-fr"></span>
+                <span>Français</span>
+            </button>
+        </div>
+    }
+</div>
+
+@code {
+    private bool isOpen = false;
+    private string CurrentCulture => CultureInfo.CurrentCulture.Name;
+
+    private void ToggleDropdown()
+    {
+        isOpen = !isOpen;
+    }
+
+    private async Task ChangeLanguageAsync(string culture)
+    {
+        if (CultureInfo.CurrentCulture.Name != culture)
+        {
+            await CultureService.SetCultureAsync(culture);
+            
+            // Set culture without page reload
+            var cultureInfo = new CultureInfo(culture);
+            CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
+            CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;
+            
+            // Navigate without reload to trigger re-render
+            Navigation.NavigateTo(Navigation.Uri, forceLoad: false);
+        }
+        
+        isOpen = false;
+    }
+
+    private string GetFlagCode(string culture)
+    {
+        return culture switch
+        {
+            "de-DE" => "de",
+            "en-US" => "us",
+            "fr-FR" => "fr",
+            _ => "de"
+        };
+    }
+
+    private string GetLanguageName(string culture)
+    {
+        return culture switch
+        {
+            "de-DE" => "Deutsch",
+            "en-US" => "English",
+            "fr-FR" => "Français",
+            _ => "Deutsch"
+        };
+    }
+}

EnvelopeGenerator.ReceiverUI/Shared/MainLayout.razor

@@ -8,9 +8,12 @@
         </article>
     </main>
     <footer class="receiver-footer">
+        <div class="receiver-footer__content">
             <span>&copy; SignFlow 2023-2024 <a href="https://digitaldata.works" target="_blank" rel="noopener">Digital Data GmbH</a></span>
             <span class="receiver-footer__sep">&#124;</span>
             <a href="docs/privacy-policy.de-DE.html" target="_blank" rel="noopener">Datenschutz</a>
+        </div>
+        <LanguageSelector />
     </footer>
 </div>
 

EnvelopeGenerator.ReceiverUI/Shared/MainLayout.razor.css

@@ -15,3 +15,18 @@ article {
     padding: 0 !important;
     margin: 0 !important;
 }
+
+.receiver-footer {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 1rem 2rem;
+    gap: 1rem;
+}
+
+.receiver-footer__content {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+}
+

EnvelopeGenerator.ReceiverUI/wwwroot/css/app.css

@@ -366,3 +366,74 @@ article {
 .receiver-footer__sep {
     opacity: 0.4;
 }
+
+/* ── Language Selector (Footer) ──────────────────────────────────────────── */
+.language-selector {
+    position: relative;
+    display: inline-block;
+}
+
+.language-selector__trigger {
+    display: flex;
+    align-items: center;
+    gap: 0.4rem;
+    padding: 0.25rem 0.5rem;
+    background: rgba(255, 255, 255, 0.1);
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    border-radius: 4px;
+    color: rgba(255, 255, 255, 0.9);
+    cursor: pointer;
+    font-size: 1rem;
+    transition: all 0.2s ease;
+}
+
+.language-selector__trigger:hover {
+    background: rgba(255, 255, 255, 0.15);
+    border-color: rgba(255, 255, 255, 0.3);
+}
+
+.language-selector__arrow {
+    font-size: 0.6rem;
+    transition: transform 0.2s ease;
+    opacity: 0.7;
+}
+
+.language-selector__dropdown {
+    position: absolute;
+    bottom: calc(100% + 0.5rem);
+    right: 0;
+    background: white;
+    border: 1px solid #ddd;
+    border-radius: 6px;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+    min-width: 160px;
+    z-index: 1000;
+    overflow: hidden;
+}
+
+.language-selector__option {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    width: 100%;
+    padding: 0.65rem 1rem;
+    background: white;
+    border: none;
+    color: #333;
+    cursor: pointer;
+    font-size: 0.9rem;
+    transition: background-color 0.2s ease;
+    text-align: left;
+}
+
+.language-selector__option:hover {
+    background-color: #f5f5f5;
+}
+
+.language-selector__option .fi {
+    font-size: 1.25rem;
+}
+
+.language-selector__option span:last-child {
+    font-weight: 500;
+}

EnvelopeGenerator.ReceiverUI/wwwroot/css/sender-page.css

@@ -0,0 +1,297 @@
+.sender-dashboard-layout {
+    display: flex;
+    flex-direction: column;
+    height: 100vh;
+    overflow: hidden;
+    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
+}
+
+.sender-action-bar {
+    background: rgba(255, 255, 255, 0.95);
+    backdrop-filter: blur(20px);
+    border-bottom: 3px solid rgba(126, 34, 206, 0.3);
+    padding: 1rem 2rem;
+    flex-shrink: 0;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
+}
+
+.sender-action-bar__inner {
+    max-width: 1600px;
+    margin: 0 auto;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 1.5rem;
+}
+
+.sender-title-section {
+    display: flex;
+    align-items: center;
+    gap: 1rem;
+}
+
+.sender-logo svg {
+    filter: drop-shadow(0 2px 4px rgba(126, 34, 206, 0.3));
+    color: #7e22ce;
+}
+
+.sender-title {
+    font-size: 1.25rem;
+    font-weight: 700;
+    color: #1e293b;
+    letter-spacing: -0.025em;
+}
+
+.sender-toolbar {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    flex-wrap: wrap;
+}
+
+.sender-btn {
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    padding: 0.625rem 1.125rem;
+    background: linear-gradient(135deg, rgba(126, 34, 206, 0.05) 0%, rgba(42, 82, 152, 0.05) 100%);
+    border: 1px solid rgba(126, 34, 206, 0.2);
+    border-radius: 8px;
+    font-size: 0.875rem;
+    font-weight: 600;
+    color: #1e293b;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    white-space: nowrap;
+}
+
+    .sender-btn:hover:not(:disabled) {
+        background: linear-gradient(135deg, rgba(126, 34, 206, 0.1) 0%, rgba(42, 82, 152, 0.1) 100%);
+        border-color: rgba(126, 34, 206, 0.4);
+        transform: translateY(-1px);
+        box-shadow: 0 4px 12px rgba(126, 34, 206, 0.2);
+    }
+
+    .sender-btn:disabled {
+        opacity: 0.4;
+        cursor: not-allowed;
+        background: rgba(0, 0, 0, 0.02);
+        border-color: rgba(0, 0, 0, 0.1);
+    }
+
+.sender-btn--primary {
+    background: linear-gradient(135deg, #7e22ce 0%, #2a5298 100%);
+    border-color: transparent;
+    color: white;
+}
+
+    .sender-btn--primary:hover:not(:disabled) {
+        background: linear-gradient(135deg, #6b1cb0 0%, #1e3a72 100%);
+        transform: translateY(-1px);
+        box-shadow: 0 4px 16px rgba(126, 34, 206, 0.3);
+    }
+
+.sender-btn--danger {
+    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(220, 38, 38, 0.08) 100%);
+    border-color: rgba(239, 68, 68, 0.3);
+    color: #dc2626;
+}
+
+    .sender-btn--danger:hover:not(:disabled) {
+        background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
+        border-color: transparent;
+        color: white;
+    }
+
+.sender-btn--logout {
+    padding: 0.5rem;
+    min-width: 38px;
+}
+
+.sender-content {
+    flex: 1;
+    min-height: 0;
+    padding: 1.5rem;
+    position: relative;
+    overflow: auto;
+}
+
+.sender-grid-container {
+    background: rgba(255, 255, 255, 0.98);
+    backdrop-filter: blur(20px);
+    border-radius: 16px;
+    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.1);
+    overflow: hidden;
+    position: relative;
+    max-width: 1600px;
+    margin: 0 auto;
+}
+
+    .sender-grid-container::before {
+        content: '';
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        height: 4px;
+        background: linear-gradient(90deg, #7e22ce 0%, #2a5298 100%);
+        z-index: 1;
+        border-radius: 16px 16px 0 0;
+    }
+
+.sender-tabs {
+    display: flex;
+    border-bottom: 2px solid rgba(126, 34, 206, 0.1);
+    padding: 0 2rem;
+    background: rgba(126, 34, 206, 0.02);
+}
+
+.sender-tab {
+    padding: 1rem 1.5rem;
+    font-size: 0.875rem;
+    font-weight: 600;
+    color: #6b7280;
+    background: transparent;
+    border: none;
+    border-bottom: 3px solid transparent;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    white-space: nowrap;
+}
+
+    .sender-tab:hover {
+        color: #7e22ce;
+        background: rgba(126, 34, 206, 0.05);
+    }
+
+.sender-tab--active {
+    color: #7e22ce;
+    border-bottom-color: #7e22ce;
+    background: white;
+}
+
+.sender-grid-wrapper {
+    padding: 1.5rem 2rem 2rem;
+}
+
+/* Hide DevExpress empty cells */
+.dxbl-grid-empty-cell {
+    display: none !important;
+}
+
+.status-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.375rem;
+    padding: 0.25rem 0.625rem;
+    border-radius: 6px;
+    font-size: 0.75rem;
+    font-weight: 600;
+    white-space: nowrap;
+}
+
+.status-badge--partly-signed,
+.status-badge--completed {
+    background: rgba(129, 199, 132, 0.15);
+    color: #2e7d32;
+}
+
+.status-badge--queued,
+.status-badge--sent {
+    background: rgba(255, 183, 77, 0.15);
+    color: #e65100;
+}
+
+.status-badge--deleted,
+.status-badge--rejected,
+.status-badge--withdrawn {
+    background: rgba(229, 115, 115, 0.15);
+    color: #c62828;
+}
+
+.status-badge--created,
+.status-badge--saved {
+    background: rgba(100, 181, 246, 0.15);
+    color: #1565c0;
+}
+
+.status-dot {
+    width: 6px;
+    height: 6px;
+    border-radius: 50%;
+}
+
+.status-dot--green {
+    background: #81c784;
+}
+
+.status-dot--orange {
+    background: #ffb74d;
+}
+
+.status-dot--red {
+    background: #e57373;
+}
+
+.status-dot--blue {
+    background: #64b5f6;
+}
+
+.receiver-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.25rem;
+    padding: 0.125rem 0.5rem;
+    background: #f3f4f6;
+    border-radius: 4px;
+    font-size: 0.75rem;
+    color: #374151;
+    white-space: nowrap;
+}
+
+.receiver-badge--signed {
+    background: rgba(129, 199, 132, 0.15);
+    color: #2e7d32;
+}
+
+.receiver-badge--unsigned {
+    background: rgba(229, 115, 115, 0.15);
+    color: #c62828;
+}
+
+@@media (max-width: 768px) {
+    .sender-action-bar {
+        padding: 1rem 1.25rem;
+    }
+
+    .sender-action-bar__inner {
+        flex-wrap: wrap;
+    }
+
+    .sender-toolbar {
+        width: 100%;
+        justify-content: flex-start;
+    }
+
+    .sender-title {
+        font-size: 1.125rem;
+    }
+
+    .sender-content {
+        padding: 0.75rem;
+    }
+
+    .sender-grid-wrapper {
+        padding: 1rem;
+    }
+
+    .sender-tabs {
+        padding: 0 1rem;
+        overflow-x: auto;
+    }
+
+    .sender-tab {
+        padding: 0.875rem 1rem;
+        font-size: 0.813rem;
+    }
+}

EnvelopeGenerator.ReceiverUI/wwwroot/index.html

@@ -12,6 +12,7 @@
     <link href="css/bootstrap/bootstrap.min.css" rel="stylesheet" />
     <link href="EnvelopeGenerator.ReceiverUI.styles.css" rel="stylesheet" />
     <link href="css/app.css" rel="stylesheet" />
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/lipis/flag-icons@7.2.3/css/flag-icons.min.css" />
     <style type="text/css">
         .splash-screen {
             display: flex;