Update company logo and CSS classes in UI config

Changed the company logo source from digital_data.svg to wisag.svg.
Updated associated CSS class names to use wisag-specific
identifiers for show and locked states.

.gitignore

@@ -365,8 +365,3 @@ FodyWeavers.xsd
 /EnvelopeGenerator.GeneratorAPI/ClientApp/envelope-generator-ui/.vscode
 /EnvelopeGenerator.Tests.Application/Services/BugFixTests.cs
 /EnvelopeGenerator.Tests.Application/annotations.json
-/EnvelopeGenerator.Server/EnvelopeGenerator.Server/TekH - SoftHSM Test.md
-/EnvelopeGenerator.Server/EnvelopeGenerator.Server/tekh_softHSM_test.md
-/EnvelopeGenerator.Server/EnvelopeGenerator.Server/publish-output
-/EnvelopeGenerator.Server/EnvelopeGenerator.Server/tekh_softHSM_test.md
-/ignore/EnvelopeGenerator.Form

AGENTS.md

@@ -1,316 +0,0 @@
-# EnvelopeGenerator - Agent Guide
-
-## Must Read First
-- **`COPILOT_CONTEXT.md`** - Architecture, coordinate systems, migration status
-- **`FORM_APPLICATION_CONTEXT.md`** - Legacy VB.NET features to migrate
-
----
-
-## Documentation Catalog
-
-This section explains every markdown file in the repo: what it contains, why it exists, and when you need it. Read this before deciding which file to open.
-
-### Core Architecture Docs (Active — Always Relevant)
-
-#### `AGENTS.md` ← you are here
-**What:** Authoritative agent/copilot onboarding guide. Covers project structure, route table, render mode rules, coordinate system, API gaps, and common mistakes.
-**Why it exists:** Single source of truth for agents so they don't re-derive architecture from code on every session.
-**When you need it:** Always. Read first on every session.
-**Maintenance:** Update whenever project structure, routes, render modes, or naming conventions change.
-
-#### `COPILOT_CONTEXT.md`
-**What:** Deep-dive architecture reference. Covers the full Blazor Auto hybrid setup, authentication flows (JWT + cookies, per-envelope receiver tokens), service registration patterns, coordinate system proof, and an explicit "prefer Server/Server.Client over old WebUI/ReceiverUI" rule.
-**Why it exists:** Prevents agents from re-deriving or misinterpreting the hybrid SSR+WASM architecture. Also documents coordinate system evidence to prevent regressions (inches vs. points vs. pixels).
-**When you need it:**
-- Implementing any new page or service
-- Debugging auth/cookie issues
-- Any coordinate conversion question
-- Unsure which project a new file should go in
-**Maintenance:** Update when render mode assignments change, new auth schemes are added, or the coordinate system is touched.
-
-#### `FORM_APPLICATION_CONTEXT.md`
-**What:** Comprehensive reverse-engineering of the legacy VB.NET WinForms app (`EnvelopeGenerator.Form`). Documents every form (frmMain, frmEnvelopeEditor, frmFieldEditor, etc.), their UI layout, toolbar actions, data models, coordinate system, and a feature-by-feature migration mapping table to `EnvelopeGenerator.Server`.
-**Why it exists:** The WinForms app is the functional specification for the sender-side web UI. It documents the full intended workflow that is being migrated to Blazor — especially the envelope creation, signature field placement, and dashboard features that are not yet implemented.
-**When you need it:**
-- Implementing any sender-side feature (`/sender`, `/sender/editor`, `/sender/envelope/{id}`)
-- Understanding what a specific toolbar button or form should do
-- Designing API endpoints for sender workflow
-- Checking coordinate system behavior (INCHES proof is here)
-**Maintenance:** Update the mapping table as features are implemented (change `❌ Not implemented` → `✅ Exists`). Do not rename `ReceiverUI` back — it was the old project name; current target is `EnvelopeGenerator.Server`.
-
-#### `RECEIVER_PDF_VIEWER_CONTEXT.md`
-**What:** Detailed technical reference for the receiver-side PDF viewer (`EnvelopeReceiverPage.razor`). Documents the PDF.js integration, signature button rendering, JS interop API (`window.pdfViewer`), signature capture flow, HiDPI/zoom/thumbnail config, and the full component lifecycle.
-**Why it exists:** The receiver PDF viewer is the most complex component in the codebase. This doc prevents agents from misunderstanding the JS↔Blazor boundary, re-implementing already-solved problems (HiDPI, zoom, signature caching), or breaking the signing flow.
-**When you need it:**
-- Working on `EnvelopeReceiverPage.razor` or `pdf-viewer.js`
-- Adding new signature field rendering logic
-- Debugging signature rendering, zoom, or thumbnail issues
-- Implementing sender-side PDF.js overlay (signature field placement) — the receiver side is the reference implementation
-**Maintenance:** Update when `pdf-viewer.js` API changes, new JS interop functions are added, or the signing flow is modified.
-
----
-
-### Deployment Docs
-
-#### `EnvelopeGenerator.Server/EnvelopeGenerator.Server/README.md`
-**What:** IIS publish and deployment guide for `EnvelopeGenerator.Server`. Covers why self-contained publish is required (WASM assembly version strictness), the exact `dotnet publish` command, IIS Application Pool settings (`No Managed Code`), directory structure after publish, and common deployment errors.
-**Why it exists:** Blazor Auto (Server + WASM hybrid) has non-obvious deployment requirements that differ from a standard ASP.NET Core app. Forgetting self-contained publish or using the wrong app pool will break WASM loading in production.
-**When you need it:**
-- Deploying to IIS for the first time
-- Troubleshooting 500 errors on production after deploy
-- Setting up a new deployment environment
-**Maintenance:** Update if the publish target, IIS config, or runtime version changes.
-
----
-
-## Active Architecture (Post-Migration)
-
-**Frontend:** Blazor Auto (Server+WASM hybrid)
-- **EnvelopeGenerator.Server** (Server): `@rendermode InteractiveServer` - PDF viewers requiring DevExpress backend
-- **EnvelopeGenerator.Server.Client** (WASM): `@rendermode InteractiveWebAssembly` - Login, dashboards, business logic
-
-**Backend + API Host:** `EnvelopeGenerator.Server` (ASP.NET Core 8.0, merged Blazor + Web API host)
-
-**Proxy:** YARP in `EnvelopeGenerator.Server` is used for external integrations (for example AuthHub forwarding), not for routing app APIs to `EnvelopeGenerator.API`.
-
-### Deprecated Projects - DO NOT USE
-- `EnvelopeGenerator.ReceiverUI` - Pure WASM (migrated to Server)
-- `EnvelopeGenerator.Web` - Razor Pages (replaced by Server)
-- **VB.NET projects** (`Form`, `Service`, `BBTests`) - Legacy, read-only for reference
-
-## Development Commands
-
-### Run Active Host
-```powershell
-# Terminal - Blazor + Web API host
-cd EnvelopeGenerator.Server\EnvelopeGenerator.Server
-dotnet run
-```
-
-**Critical:** `EnvelopeGenerator.Server` is the active runtime host for both UI and API controllers.
-
-### Build
-```powershell
-dotnet build EnvelopeGenerator.sln
-```
-
-## Project Boundaries
-
-```
-EnvelopeGenerator.Domain/          # Entities (Envelope, Receiver, Document, etc.)
-EnvelopeGenerator.Application/     # MediatR CQRS (Commands, Queries, Handlers)
-EnvelopeGenerator.Infrastructure/  # EF Core, SQL executors, repositories
-EnvelopeGenerator.Server/
-  EnvelopeGenerator.Server/        # Server-side Blazor + API controllers
-    ├─ Components/Pages/           # @rendermode InteractiveServer
-    ├─ Controllers/                # Active Web API endpoints
-  EnvelopeGenerator.Server.Client/ # Client-side WASM components
-    ├─ Pages/                      # @rendermode InteractiveWebAssembly
-    ├─ Services/                   # HTTP API clients
-    ├─ Models/                     # DTOs
-```
-
-## Route Structure (Critical)
-
-| Route | File Location | Render Mode | Purpose |
-|-------|--------------|-------------|---------|
-| `/` | `Server.Client/Pages/Index.razor` | WASM | Landing page |
-| `/sender/login` | `Server.Client/Pages/LoginSenderPage.razor` | WASM | Sender auth |
-| `/sender` | `Server/Components/Pages/EnvelopeSenderPage.razor` | **Server** | Sender dashboard |
-| `/sender/editor` | `Server/Components/Pages/EnvelopeSenderEditorPage.razor` | **Server** | Envelope editor + PDF viewer |
-| `/envelope/login/{key}` | `Server.Client/Pages/LoginReceiverPage.razor` | WASM | Receiver auth |
-| `/envelope/{key}` | `Server/Components/Pages/EnvelopeReceiverPage.razor` | **Server** | PDF viewer + signing |
-
-**Rule:** PDF viewers MUST use `@rendermode InteractiveServer` (DevExpress backend requirement). Everything else uses WASM.
-
-## Coordinate System (CRITICAL)
-
-**Database stores INCHES** (GdPicture14 native). Origin: top-left, Y-axis down.
-
-### Conversions
-```csharp
-// Database (INCHES) → PDF Points
-float points = inches * 72;
-
-// Database (INCHES) → DevExpress DX
-float dx = inches * 100;
-
-// PDF.js Pixels → Database (INCHES)
-float inches = (pixelX / canvasWidth) * pageWidthInches;
-```
-
-**A4 Page:** 8.27" wide × 11.69" tall = 595pt × 842pt
-
-**Signature Field Size:** 1.77" × 1.96" (FIXED, do not change)
-
-**Evidence:** See `COPILOT_CONTEXT.md` lines 158-185, `EnvelopeGenerator.Form/frmFieldEditor.vb`
-
-## API Architecture Quirks
-
-### Monolithic Endpoint (Avoid for UI)
-`POST /api/EnvelopeReceiver` - Creates envelope+document+receivers+fields atomically.
-- **Use case:** External API consumers
-- **Not suitable for:** Step-by-step UI workflow (no draft support, no partial updates)
-
-### Sender Workflow Endpoint
-```
-POST /api/Envelope                # Create/update/save/send envelope workflow payload
-DELETE /api/Envelope/{id}         # Delete with reason
-POST /api/Envelope/{id}/document  # Upload PDF
-POST /api/Envelope/{id}/receivers # Add receiver
-POST /api/Envelope/{id}/signature-fields  # Place signature field
-```
-
-See `FORM_APPLICATION_CONTEXT.md` for detailed workflow requirements.
-
-## Status Color Coding
-
-Form app uses DevExpress `CustomDrawCell`. EnvelopeGenerator.Server needs CSS:
-
-```css
-.envelope-row.status-partly-signed { background-color: #81C784; } /* GREEN_300 */
-.envelope-row.status-queued,
-.envelope-row.status-sent { background-color: #FFB74D; } /* ORANGE_300 */
-.envelope-row.status-completed { background-color: #81C784; }
-.envelope-row.status-deleted,
-.envelope-row.status-rejected { background-color: #E57373; } /* RED_300 */
-```
-
-## Configuration
-
-### YARP Proxy (`EnvelopeGenerator.Server/yarp.json`)
-Routes `/api/*`, `/swagger/*`, `/openapi/*`, `/scalar/*` → `https://localhost:8088`
-
-### PDF.js Settings (`EnvelopeGenerator.Server/wwwroot/appsettings.json`)
-```json
-{
-  "PdfViewerOptions": {
-    "ThumbnailBaseScale": 0.75,
-    "ThumbnailEnableHiDPI": true,
-    "MainCanvasEnableHiDPI": true,
-    "ZoomStepPercentage": 5
-  }
-}
-```
-
-### Server Host Config (`EnvelopeGenerator.Server/EnvelopeGenerator.Server/appsettings.json`)
-- `ConnectionStrings:Default` - SQL Server DB
-- `AllowedOrigins` - CORS (includes `http://localhost:5131`, `http://localhost:7192`)
-- `Cache:SignatureCacheExpiration` - Signature persistence timeout
-- `PSPDFKitLicenseKey` - **DEPRECATED** (use PDF.js instead)
-
-## Migration Status
-
-### Complete ✅
-- Receiver login/authentication
-- PDF viewing with PDF.js (HiDPI, zoom, thumbnails)
-- Signature capture (draw/type/image)
-- Signature caching (Redis/SQL)
-- Sender login
-
-### Missing (High Priority) ❌
-- Sender dashboard (`/sender`) - Empty stub
-- Envelope editor (`/sender/envelope/{id}`)
-- Signature field placement tool (PDF.js + draggable overlays)
-- Granular API endpoints (draft, receivers, fields)
-- Master-detail grids for receivers/history
-
-## Common Mistakes (DO NOT REPEAT)
-
-| Mistake | Why Wrong |
-|---------|-----------|
-| Using iText7 in receiver pages | GPL license issue. Use PDF.js overlays. |
-| Using PSPDFKit | Removed from architecture. Use PDF.js + DevExpress. |
-| `@rendermode InteractiveWebAssembly` on PDF viewers | DevExpress DxPdfViewer requires server-side rendering. |
-| Hardcoded quality in PDF.js | Use `appsettings.json` `PdfViewerOptions`. |
-| Coordinates in points/pixels for DB | Database uses INCHES. Convert before save. |
-| `BottomMarginBand` for signatures | Repeats on every page. Use `DetailBand`. |
-
-## Testing
-
-**No automated tests exist yet.**
-
-Manual testing workflow:
-1. Start EnvelopeGenerator.Server (`dotnet run` in `EnvelopeGenerator.Server\EnvelopeGenerator.Server`)
-2. Navigate to `https://localhost:5131` (or check console output for port)
-3. Test sender login at `/sender/login`
-4. Test receiver flow at `/envelope/login/{envelopeKey}`
-
-## Database
-
-**SQL Server** (DD_ECM)
-- Connection string in `EnvelopeGenerator.Server/EnvelopeGenerator.Server/appsettings.json`
-- EF Core migrations NOT used (manual SQL scripts)
-- Stored procedures: `PRSIG_*` prefix
-
-**Key Tables:**
-- `TBSIG_ENVELOPE` - Envelope metadata
-- `TBSIG_ENVELOPE_RECEIVER` - Receiver assignments
-- `TBSIG_DOC_RECEIVER_ELEMENT` - Signature fields (X, Y in INCHES)
-- `TBSIG_RECEIVER` - Receiver registry
-- `TBSIG_DOCUMENT` - PDF binary data
-- `TBSIG_ENVELOPE_HISTORY` - Audit trail
-
-## DevExpress
-
-**License:** Commercial (v25.2.3)
-**Components Used:**
-- `DxGrid` - Master-detail grids
-- `DxPdfViewer` - Server-side PDF rendering
-- `DxPopup` - Modal dialogs
-- `DxToolbar` - Action bars
-- `DxFormLayout` - Forms
-
-**Theme:** Blazing Berry (default)
-
-## JavaScript Interop
-
-**PDF Viewer:** `wwwroot/js/pdf-viewer.js`
-```javascript
-window.pdfViewer = {
-    initialize(canvasId, pdfDataUrl, dotNetRef),
-    renderPage(num),
-    renderSignatureButtons(signatures, pageNum, dotNetRef),
-    applySignature(signatureId, dataUrl, fullName, position, place),
-    zoomIn(), zoomOut(), dispose()
-}
-```
-
-**Signature Pad:** `wwwroot/js/receiver-signature.js`
-```javascript
-window.receiverSignature = {
-    initializeDrawPad(canvasId, dotNetRef),
-    getSignatureDataUrl(canvasId),
-    clearPad(canvasId)
-}
-```
-
-## Multi-Envelope Support
-
-Receivers can login to **multiple envelopes simultaneously** via per-envelope cookies:
-```
-AuthTokenSignFLOWReceiver.{envelopeKey}
-```
-
-Each envelope maintains independent authentication state.
-
-## External Dependencies
-
-**CDN:**
-- PDF.js 3.11.174: `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js`
-
-**NuGet (Server.Client):**
-- `DevExpress.Blazor.*` 25.2.3
-- `SkiaSharp.*` 3.119.1 (WASM rendering)
-
-**External Services:**
-- LDAP/AD authentication (optional)
-- GTX Messaging (SMS 2FA)
-- Email dispatcher (signFlow)
-
-## Environment Variables
-
-None required. All config in `appsettings.json`.
-
-**Local dev ports:**
-- App host (UI + API): `https://localhost:5131` or `http://localhost:7192`

COPILOT_CONTEXT.md

@@ -1,351 +0,0 @@
-# EnvelopeGenerator — Current Workspace Context
-
-## Purpose
-Digital document signing system for senders and receivers.
-
-- Senders authenticate, view envelope lists, and manage envelope workflows.
-- Receivers authenticate per envelope, open PDFs, create signatures, and apply them in the viewer.
-- The active UI stack is `Blazor Auto` with server-side and WebAssembly render modes.
-- Primary UI/PDF libraries are `DevExpress` and `PDF.js`.
-
----
-
-## Active Application Structure
-
-### Main Host
-**Primary active application:** `EnvelopeGenerator.Server`
-
-`EnvelopeGenerator.Server` is the current runtime host and contains:
-- Blazor server host
-- WebAssembly host integration
-- API controllers
-- authentication/authorization setup
-- Swagger/Scalar setup
-- YARP reverse proxy configuration
-- DevExpress server-side services
-- SQL Server distributed cache setup
-
-### Client Project
-**Client UI project:** `EnvelopeGenerator.Server.Client`
-
-This project contains:
-- WebAssembly-rendered pages
-- client-side services
-- client models and options
-- sender and receiver login flows
-
-### Other Projects
-- `EnvelopeGenerator.Application` — MediatR/CQRS handlers and business logic
-- `EnvelopeGenerator.Domain` — domain models, constants, shared abstractions
-- `EnvelopeGenerator.Infrastructure` — EF Core and infrastructure services
-- `EnvelopeGenerator.PdfEditor` — PDF-related backend utilities
-- `EnvelopeGenerator.API` — deprecated project (no longer part of the active solution/runtime path)
-
-### Legacy / Do Not Touch
-- `EnvelopeGenerator.Service`
-- `EnvelopeGenerator.Form`
-- `EnvelopeGenerator.BBTests`
-- `EnvelopeGenerator.CommonServices`
-
----
-
-## Current Hosting Model
-
-`EnvelopeGenerator.Server/Program.cs` currently configures:
-- `AddRazorComponents()` with both interactive server and interactive WebAssembly components
-- `AddControllers()` and `MapControllers()`
-- JWT authentication for sender and receiver flows
-- cookie authentication
-- authorization policies using `AuthScheme.Sender`, `AuthScheme.Receiver`, `AuthPolicy.Sender`, `AuthPolicy.Receiver`
-- `AddReverseProxy()` with `yarp.json`
-- Swagger / OpenAPI / Scalar
-- distributed SQL Server cache
-- DevExpress Blazor and DevExpress PDF Viewer server-side services
-- request localization middleware
-
-This means the active app is a **merged UI + API host**.
-
----
-
-## Reverse Proxy
-
-**Config file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server/yarp.json`
-
-Current YARP usage is focused on **AuthHub forwarding**, not a general `/api/* -> EnvelopeGenerator.API` proxy.
-
-Configured routes forward:
-- `POST /api/auth` -> AuthHub `/api/auth/sign-flow`
-- `POST /api/Auth/envelope-receiver/{key}` -> AuthHub `/api/auth/envelope-receiver/{key}?cookie=true`
-
----
-
-## Active Routes and Files
-
-### WebAssembly Pages (`EnvelopeGenerator.Server.Client`)
-| Route | File | Render Mode | Purpose |
-|---|---|---|---|
-| `/` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/IndexPage.razor` | WebAssembly | Landing page |
-| `/sender/login` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/LoginSenderPage.razor` | WebAssembly | Sender login |
-| `/sender` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/EnvelopeSenderPage.razor` | WebAssembly (`prerender: false`) | Sender dashboard |
-| `/envelope/login/{EnvelopeKey}` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/LoginReceiverPage.razor` | WebAssembly | Receiver login |
-
-### Server Pages (`EnvelopeGenerator.Server`)
-| Route | File | Render Mode | Purpose |
-|---|---|---|---|
-| `/envelope/{EnvelopeKey}` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage.razor` | InteractiveServer | Main receiver PDF viewer and signing page |
-| `/envelope/DxPdfViewer` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_DxPdfViewer.razor` | InteractiveServer | DevExpress PDF Viewer test page |
-| `/envelope/{EnvelopeKey}/DxReportViewer` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_DxReportViewer.razor` | InteractiveServer | DevExpress report-based PDF rendering |
-| `/envelope/Embed` | `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage_embed.razor` | InteractiveServer | Embedded browser PDF view test page |
-
----
-
-## Current API Location
-
-The active application exposes controllers from:
-`EnvelopeGenerator.Server/EnvelopeGenerator.Server/Controllers`
-
-Current controller set includes:
-- `AnnotationController`
-- `AuthController`
-- `CacheController`
-- `ConfigController`
-- `DocumentController`
-- `EmailTemplateController`
-- `EnvelopeController`
-- `EnvelopeReceiverController`
-- `EnvelopeTypeController`
-- `HistoryController`
-- `LocalizationController`
-- `ReadOnlyController`
-- `ReceiverController`
-- `SignatureController`
-- `TfaRegistrationController`
-
-Do not assume API behavior lives in `EnvelopeGenerator.API`; the active merged host contains controller endpoints directly.
-
----
-
-## Authentication Model
-
-### Sender
-Client login page uses `EnvelopeGenerator.Server.Client/Services/AuthService.cs`.
-
-Key sender endpoints:
-- `POST /api/auth?cookie=true` — login
-- `GET /api/auth/check` — current sender access check
-- `POST /api/auth/logout` — logout
-
-### Receiver
-Receiver authentication is **per envelope**.
-
-Key receiver endpoints used by client services:
-- `POST /api/Auth/envelope-receiver/{envelopeKey}` — submit access code
-- `GET /api/auth/check/envelope/{envelopeKey}` — check access
-- `POST /api/auth/logout/envelope/{envelopeKey}` — logout receiver for one envelope
-
-Receiver cookie resolution in server auth uses an envelope-specific cookie name derived from:
-- `AuthTokenSignFLOWReceiver.{envelopeKey}` pattern
-
-### Receiver Server-Side Authorization
-`EnvelopeReceiverPage.razor` does **not** rely on its own API access-check call for page authorization.
-
-It uses:
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverAuthorizationService.cs`
-
-Behavior:
-- tries the current `HttpContext.User`
-- if needed, reads the per-envelope receiver cookie directly
-- validates the JWT with the receiver auth scheme
-- verifies the token subject matches the route envelope key
-
----
-
-## Receiver Page Data Loading
-
-Main server-side page data service:
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverPageDataService.cs`
-
-This service loads directly via MediatR and distributed cache:
-- document bytes
-- receiver envelope data
-- signature placeholders
-- cached signature data
-
-For signature placeholders, the service:
-- reads document receiver elements
-- filters them for the authenticated receiver
-- converts coordinates to `UnitOfLength.Point` before UI use
-
----
-
-## Receiver PDF Viewer
-
-**Main file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Components/Pages/EnvelopeReceiverPage.razor`
-
-Current receiver viewer characteristics:
-- route: `/envelope/{EnvelopeKey}`
-- render mode: `InteractiveServer`
-- PDF rendering: `PDF.js`
-- toolbar: page navigation, zoom, thumbnail toggle, signature navigation, signature reset
-- signature popup: `DxPopup`
-- thumbnail sidebar: resizable and stored in `localStorage`
-
-### JS Assets
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/js/pdf-viewer.js`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/js/receiver-signature.js`
-
-### CSS
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/wwwroot/css/envelope-viewer.css`
-
-### PDF.js CDN
-- `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js`
-- `https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf_viewer.min.css`
-
----
-
-## Signature Workflow
-
-Receiver signatures are handled as a **viewer overlay workflow**.
-
-### Current behavior
-1. Server-side authorization validates receiver access.
-2. The page loads document bytes, receiver data, signature placeholders, and cached signature state.
-3. If no cached signature exists, the signature popup opens automatically.
-4. Receiver creates signature using one of three tabs:
-   - draw
-   - text
-   - image
-5. Required metadata:
-   - full name
-   - place
-6. Optional metadata:
-   - position
-7. Clicking a signature placeholder applies the signature as a client-side overlay in the PDF viewer.
-
-### Important note
-Although `itext` is referenced by the server project, the current receiver page signing flow is **not PDF stamping-based**. The active receiver UI uses client-side overlay behavior in the viewer.
-
-### Signature DTO
-`EnvelopeGenerator.Server.Client/Models/SignatureCaptureDto.cs`
-
-```csharp
-public sealed record SignatureCaptureDto {
-    public required string DataUrl { get; init; }
-    public required string FullName { get; init; }
-    public string Position { get; init; } = "";
-    public required string Place { get; init; }
-}
-```
-
----
-
-## Signature Cache
-
-### Active cache model
-The current receiver page cache flow is handled directly in the server project through:
-- `EnvelopeReceiverPageDataService`
-- `IDistributedCache`
-- SQL Server distributed cache configuration from `Program.cs`
-
-### Cache key format
-Current server-side key prefix:
-- `envelope-generator.receiver-ui.signature:{receiverSignature}`
-
-This is different from an envelope-key-only cache convention.
-
-### Config
-`EnvelopeGenerator.Server/EnvelopeGenerator.Server/Options/CacheOptions.cs`
-- section name: `Cache`
-- option: `SignatureCacheExpiration`
-
-### Related controller
-A cache API controller also exists in:
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Controllers/CacheController.cs`
-
----
-
-## Sender Dashboard
-
-**Main file:** `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/EnvelopeSenderPage.razor`
-
-Current behavior:
-- checks sender access through `AuthService.CheckSenderAccessAsync()`
-- redirects to `/sender/login` when unauthorized
-- loads envelope list through client `EnvelopeService`
-- separates envelopes into active/completed tabs
-- uses `DevExpress DxGrid`
-
-The sender page is active, but create/edit/delete actions are still marked with TODO behavior in the UI page.
-
----
-
-## Localization
-
-Current server host localization setup in `Program.cs`:
-- supported cultures: `de-DE`, `en-US`
-- request localization middleware is enabled
-- `QueryStringRequestCultureProvider` is added
-- cookie-based localization services are registered via `AddCookieBasedLocalizer()`
-
-Do not assume the old ReceiverUI-only `localStorage` culture approach is the current source of truth for the active host.
-
----
-
-## Coordinate System
-
-### Source data
-Database signature coordinates are still based on:
-- **unit:** inches
-- **origin:** top-left
-- **axes:** X right, Y down
-
-### Relevant conversions
-- inches -> PDF points: `x_pt = x_inches * 72`
-- inches -> DevExpress DX units: `x_dx = x_inches * 100`
-
-### Current receiver page behavior
-The server page data service converts signature placeholders to **points** before sending them into the viewer workflow.
-
-### Unit systems to keep in mind
-| System | Unit | Origin | Y-axis |
-|---|---|---|---|
-| Database | Inches | Top-left | Down |
-| PDF.js display | Pixels | Top-left | Down |
-| PDF points | Points | Depends on PDF model | Depends on consumer |
-| DevExpress DX | 1/100 inch style coordinates | Top-left-oriented usage in this app | Down-oriented usage |
-
----
-
-## Key Services and Files
-
-### Client services
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/AuthService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/EnvelopeService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/DocumentService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Services/SignatureCacheService.cs`
-
-### Server services
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeAuthService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/IEnvelopeAuthService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverAuthorizationService.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Services/EnvelopeReceiverPageDataService.cs`
-
-### Server config and host files
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/Program.cs`
-- `EnvelopeGenerator.Server/EnvelopeGenerator.Server/yarp.json`
-
----
-
-## Working Rules for This Workspace
-
-- Treat `EnvelopeGenerator.Server` as the active main application host.
-- Treat `EnvelopeGenerator.Server.Client` as the active client UI project.
-- Prefer current `Server` / `Server.Client` paths over old `WebUI` / `ReceiverUI` references.
-- Do not use `EnvelopeGenerator.Web` or `EnvelopeGenerator.ReceiverUI` as the primary implementation target unless explicitly asked.
-- Do not modify the legacy VB.NET projects unless explicitly requested.
-- For receiver PDF/signature work, prefer the current `PDF.js`-based flow in `EnvelopeReceiverPage.razor`.
-- For DevExpress PDF viewer issues, remember server-side services are registered in `EnvelopeGenerator.Server`.
-
----
-
-**Last Updated:** 2026-06-29

EnvelopeGenerator.API/Controllers/AnnotationController.cs

@@ -1,21 +1,19 @@
 using DigitalData.Core.Abstraction.Application.DTO;
 using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Server.Extensions;
-using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Application.Common.Interfaces.Services;
 using EnvelopeGenerator.Application.Common.Notifications.DocSigned;
-using EnvelopeGenerator.Application.Common.Notifications.RemoveSignature;
 using EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
 using EnvelopeGenerator.Application.Histories.Queries;
 using EnvelopeGenerator.Domain.Constants;
+using EnvelopeGenerator.API.Extensions;
 using MediatR;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Manages annotations and signature lifecycle for envelopes.
@@ -61,8 +59,8 @@ public class AnnotationController : ControllerBase
     [Obsolete("PSPDF Kit will no longer be used.")]
     public async Task<IActionResult> CreateOrUpdate([FromBody] PsPdfKitAnnotation? psPdfKitAnnotation = null, CancellationToken cancel = default)
     {
-        var signature = User.ReceiverSignature();
+        var signature = User.GetReceiverSignatureOfReceiver();
-        var uuid = User.EnvelopeUuid();
+        var uuid = User.GetEnvelopeUuidOfReceiver();
 
         var envelopeReceiver = await _mediator.ReadEnvelopeReceiverAsync(uuid, signature, cancel).ThrowIfNull(Exceptions.NotFound);
 
@@ -74,24 +72,12 @@ public class AnnotationController : ControllerBase
         else if (await _mediator.AnyHistoryAsync(uuid, new[] { EnvelopeStatus.EnvelopeRejected, EnvelopeStatus.DocumentRejected }, cancel))
             return Problem(statusCode: StatusCodes.Status423Locked);
 
-        var envelopeReceiverDto = await _mediator.ReadEnvelopeReceiverAsync(uuid, signature, cancel);
+        var docSignedNotification = await _mediator
-        var docSignedNotification = envelopeReceiverDto is not null
+            .ReadEnvelopeReceiverAsync(uuid, signature, cancel)
-            ? new DocSignedNotification { EnvelopeReceiver = envelopeReceiverDto, PsPdfKitAnnotation = psPdfKitAnnotation }
+            .ToDocSignedNotification(psPdfKitAnnotation)
-            : throw new NotFoundException("Envelope receiver is not found.");
+            ?? throw new NotFoundException("Envelope receiver is not found.");
 
-        try
+        await _mediator.PublishSafely(docSignedNotification, cancel);
-        {
-            await _mediator.Publish(docSignedNotification, cancel);
-        }
-        catch (Exception)
-        {
-            await _mediator.Publish(new RemoveSignatureNotification()
-            {
-                EnvelopeId = docSignedNotification.EnvelopeReceiver.EnvelopeId,
-                ReceiverId = docSignedNotification.EnvelopeReceiver.ReceiverId
-            }, cancel);
-            throw;
-        }
         await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
 
         return Ok();
@@ -106,9 +92,9 @@ public class AnnotationController : ControllerBase
     [Obsolete("Use MediatR")]
     public async Task<IActionResult> Reject([FromBody] string? reason = null)
     {
-        var signature = User.ReceiverSignature();
+        var signature = User.GetReceiverSignatureOfReceiver();
-        var uuid = User.EnvelopeUuid();
+        var uuid = User.GetEnvelopeUuidOfReceiver();
-        var mail = User.ReceiverMail();
+        var mail = User.GetReceiverMailOfReceiver();
 
         var envRcvRes = await _envelopeReceiverService.ReadByUuidSignatureAsync(uuid: uuid, signature: signature);
 

EnvelopeGenerator.API/Controllers/AuthController.cs

@@ -0,0 +1,76 @@
+using EnvelopeGenerator.API.Controllers.Interfaces;
+using EnvelopeGenerator.API.Models;
+using EnvelopeGenerator.Domain.Constants;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+
+namespace EnvelopeGenerator.API.Controllers;
+
+/// <summary>
+/// Controller verantwortlich für die Benutzer-Authentifizierung, einschließlich Anmelden, Abmelden und Überprüfung des Authentifizierungsstatus.
+/// </summary>
+[Route("api/[controller]")]
+[ApiController]
+public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions, IAuthorizationService authService) : ControllerBase, IAuthController
+{
+    private readonly AuthTokenKeys authTokenKeys = authTokenKeyOptions.Value;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public IAuthorizationService AuthService { get; } = authService;
+
+    /// <summary>
+    /// Entfernt das Authentifizierungs-Cookie des Benutzers (AuthCookie)
+    /// </summary>
+    /// <returns>
+    /// Gibt eine HTTP 200 oder 401.
+    /// </returns>
+    /// <remarks>
+    /// Sample request:
+    ///
+    ///     POST /api/auth/logout
+    ///
+    /// </remarks>
+    /// <response code="200">Erfolgreich gelöscht, wenn der Benutzer ein berechtigtes Cookie hat.</response>
+    /// <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)]
+    [HttpPost("logout")]
+    public async Task<IActionResult> Logout()
+    {
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Sender))
+            Response.Cookies.Delete(authTokenKeys.Cookie);
+        else if (await this.IsUserInPolicyAsync(AuthPolicy.ReceiverOrReceiverTFA))
+            await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        else
+            return Unauthorized();
+
+        return Ok();
+    }
+
+    /// <summary>
+    /// Prüft, ob der Benutzer ein autorisiertes Token hat.
+    /// </summary>
+    /// <returns>Wenn ein autorisiertes Token vorhanden ist HTTP 200 asynchron 401</returns>
+    /// <remarks>
+    /// Sample request:
+    ///
+    ///     GET /api/auth
+    ///
+    /// </remarks>
+    /// <response code="200">Wenn es einen autorisierten Cookie gibt.</response>
+    /// <response code="401">Wenn kein Cookie vorhanden ist oder nicht autorisierte.</response>
+    [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
+    [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
+    [HttpGet("check")]
+    [Authorize]
+    public IActionResult Check(string? role = null)
+        => role is not null && !User.IsInRole(role)
+            ? Unauthorized()
+            : Ok();
+}

EnvelopeGenerator.API/Controllers/ConfigController.cs

@@ -1,9 +1,9 @@
-using EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+using EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Exposes configuration data required by the client applications.

EnvelopeGenerator.API/Controllers/DocumentController.cs

@@ -0,0 +1,63 @@
+using EnvelopeGenerator.API.Controllers.Interfaces;
+using EnvelopeGenerator.API.Extensions;
+using EnvelopeGenerator.Application.Documents.Queries;
+using EnvelopeGenerator.Domain.Constants;
+using MediatR;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace EnvelopeGenerator.API.Controllers;
+
+/// <summary>
+/// Provides access to envelope documents for authenticated receivers.
+/// </summary>
+/// <remarks>
+/// Initializes a new instance of the <see cref="DocumentController"/> class.
+/// </remarks>
+[Authorize]
+[ApiController]
+[Route("api/[controller]")]
+public class DocumentController(IMediator mediator, IAuthorizationService authService) : ControllerBase, IAuthController
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public IAuthorizationService AuthService => authService;
+
+    /// <summary>
+    /// Returns the document bytes receiver.
+    /// </summary>
+    /// <param name="query">Encoded envelope key.</param>
+    /// <param name="cancel">Cancellation token.</param>
+    [HttpGet]
+    [Authorize(Policy = AuthPolicy.SenderOrReceiver)]
+    public async Task<IActionResult> GetDocument(CancellationToken cancel, [FromQuery] ReadDocumentQuery? query = null)
+    {
+        // Sender: expects query with envelope key
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Sender))
+        {
+            if (query is null)
+                return BadRequest("Missing document query.");
+
+            var senderDoc = await mediator.Send(query, cancel);
+            return senderDoc.ByteData is byte[] senderDocByte
+                ? File(senderDocByte, "application/octet-stream")
+                : NotFound("Document is empty.");
+        }
+
+        // Receiver: resolve envelope id from claims
+        if (await this.IsUserInPolicyAsync(AuthPolicy.Receiver))
+        {           
+            if (query is not null)
+                return BadRequest("Query parameters are not allowed for receiver role.");
+
+            var envelopeId = User.GetEnvelopeIdOfReceiver();
+            var receiverDoc = await mediator.Send(new ReadDocumentQuery { EnvelopeId = envelopeId }, cancel);
+            return receiverDoc.ByteData is byte[] receiverDocByte
+                ? File(receiverDocByte, "application/octet-stream")
+                : NotFound("Document is empty.");
+        }
+
+        return Unauthorized();
+    }
+}

EnvelopeGenerator.API/Controllers/EmailTemplateController.cs

@@ -10,7 +10,7 @@ using Microsoft.EntityFrameworkCore;
 using EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Application.EmailTemplates.Queries;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Controller for managing temp templates.
@@ -24,7 +24,7 @@ namespace EnvelopeGenerator.Server.Controllers;
 /// </param>
 [Route("api/[controller]")]
 [ApiController]
-[Authorize(AuthenticationSchemes = AuthScheme.Sender)]
+[Authorize(Policy = AuthPolicy.Sender)]
 public class EmailTemplateController(IMediator mediator) : ControllerBase
 {
     /// <summary>

EnvelopeGenerator.API/Controllers/EnvelopeController.cs

@@ -1,4 +1,4 @@
-using EnvelopeGenerator.Server.Extensions;
+using EnvelopeGenerator.API.Extensions;
 using EnvelopeGenerator.Application.Envelopes.Commands;
 using EnvelopeGenerator.Application.Envelopes.Queries;
 using MediatR;
@@ -6,7 +6,7 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Dieser Controller stellt Endpunkte für die Verwaltung von Umschlägen bereit.
@@ -27,8 +27,6 @@ namespace EnvelopeGenerator.Server.Controllers;
 [Authorize]
 public class EnvelopeController : ControllerBase
 {
-    public record DeleteEnvelopeRequest(string Reason);
-
     private readonly ILogger<EnvelopeController> _logger;
     private readonly IMediator _mediator;
 
@@ -53,7 +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(AuthenticationSchemes = AuthScheme.Sender)]
+    [Authorize]
     [HttpGet]
     public async Task<IActionResult> GetAsync([FromQuery] ReadEnvelopeQuery envelope)
     {
@@ -95,11 +93,12 @@ public class EnvelopeController : ControllerBase
     /// </summary>
     /// <param name="command"></param>
     /// <returns></returns>
-    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
+    [NonAction]
+    [Authorize]
     [HttpPost]
     public async Task<IActionResult> CreateAsync([FromBody] CreateEnvelopeCommand command)
     {
-        var res = await _mediator.Send(command.WithAuth(User.GetId()));
+        var res = await _mediator.Send(command.Authorize(User.GetId()));
 
         if (res is null)
         {
@@ -109,18 +108,4 @@ public class EnvelopeController : ControllerBase
         else
             return Ok(res);
     }
-
-    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
-    [HttpDelete("{id:int}")]
-    public async Task<IActionResult> DeleteAsync([FromRoute] int id, [FromBody] DeleteEnvelopeRequest request)
-    {
-        var result = await _mediator.Send(new DeleteEnvelopeCommand
-        {
-            EnvelopeId = id,
-            Reason = request?.Reason ?? string.Empty
-        }.WithAuth(User.GetId()));
-
-        return Ok(result);
-    }
-
 }

EnvelopeGenerator.API/Controllers/EnvelopeReceiverController.cs

@@ -3,7 +3,7 @@ using EnvelopeGenerator.Application.EnvelopeReceivers.Commands;
 using EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
 using EnvelopeGenerator.Application.Envelopes.Queries;
 using EnvelopeGenerator.Domain.Entities;
-using EnvelopeGenerator.Server.Models;
+using EnvelopeGenerator.API.Models;
 using MediatR;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
@@ -13,10 +13,9 @@ using System.Data;
 using EnvelopeGenerator.Application.Common.SQL;
 using EnvelopeGenerator.Application.Common.Dto.Receiver;
 using EnvelopeGenerator.Application.Common.Interfaces.SQLExecutor;
-using EnvelopeGenerator.Server.Extensions;
+using EnvelopeGenerator.API.Extensions;
-using EnvelopeGenerator.Domain.Constants;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Controller für die Verwaltung von Umschlagempfängern.
@@ -74,24 +73,6 @@ public class EnvelopeReceiverController : ControllerBase
         return Ok(result);
     }
 
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="envelopeKey"></param>
-    /// <param name="cancel"></param>
-    /// <returns></returns>
-    [Authorize(Policy = AuthPolicy.Receiver)]
-    [HttpGet("{envelopeKey}")]
-    public async Task<IActionResult> GetEnvelopeReceiverOfReceiver([FromRoute] string envelopeKey, CancellationToken cancel)
-    {
-        var er = await _mediator.Send(new ReadEnvelopeReceiverQuery()
-        {
-            Key = envelopeKey
-        }, cancel);
-
-        return Ok(er.SingleOrDefault());
-    }
-
     /// <summary>
     /// Ruft den Namen des zuletzt verwendeten Empfängers basierend auf der angegebenen E-Mail-Adresse ab.
     /// </summary>
@@ -150,7 +131,7 @@ public class EnvelopeReceiverController : ControllerBase
     /// <response code="400">Wenn ein Fehler im HTTP-Body auftritt</response>
     /// <response code="401">Wenn kein autorisierter Token vorhanden ist</response>
     /// <response code="500">Es handelt sich um einen unerwarteten Fehler. Die Protokolle sollten überprüft werden.</response>
-    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
+    [Authorize]
     [HttpPost]
     public async Task<IActionResult> CreateAsync([FromBody] CreateEnvelopeReceiverCommand request, CancellationToken cancel)
     {
@@ -200,7 +181,7 @@ public class EnvelopeReceiverController : ControllerBase
                 SELECT @OUT_SUCCESS as [@OUT_SUCCESS];";
 
         foreach (var rcv in res.SentReceiver)
-            foreach (var sign in request.Receivers.Where(r => r.EmailAddress == rcv.EmailAddress).FirstOrDefault()?.DocReceiverElements ?? Enumerable.Empty<Application.EnvelopeReceivers.Commands.DocReceiverElementCreateDto>())
+            foreach (var sign in request.Receivers.Where(r => r.EmailAddress == rcv.EmailAddress).FirstOrDefault()?.Signatures ?? Enumerable.Empty<Application.EnvelopeReceivers.Commands.Signature>())
             {
                 using SqlConnection conn = new(_cnnStr);
                 conn.Open();
@@ -214,10 +195,6 @@ public class EnvelopeReceiverController : ControllerBase
                 if (reader.Read())
                 {
                     bool outSuccess = reader.GetBoolean(0);
-                    if (!outSuccess)
-                        _logger.LogWarning(
-                            "PRSIG_API_ADD_DOC_RECEIVER_ELEM returned OUT_SUCCESS=false. DOC_ID={DocId}, RECEIVER_ID={ReceiverId}, Page={Page}",
-                            document.Id, rcv.Id, sign.Page);
                 }
             }
         #endregion
@@ -225,6 +202,8 @@ public class EnvelopeReceiverController : ControllerBase
         #region Create history
         // ENV_UID, STATUS_ID, USER_ID,
         string sql_hist = @"
+                USE [DD_ECM]
+
                 DECLARE @OUT_SUCCESS bit;
 
                 EXEC [dbo].[PRSIG_API_ADD_HISTORY_STATE]
@@ -246,10 +225,6 @@ public class EnvelopeReceiverController : ControllerBase
             if (reader.Read())
             {
                 bool outSuccess = reader.GetBoolean(0);
-                if (!outSuccess)
-                    _logger.LogWarning(
-                        "PRSIG_API_ADD_HISTORY_STATE returned OUT_SUCCESS=false. EnvelopeUuid={EnvelopeUuid}",
-                        envelope.Uuid);
             }
         }
         #endregion

EnvelopeGenerator.API/Controllers/HistoryController.cs

@@ -6,7 +6,7 @@ using EnvelopeGenerator.Application.Histories.Queries;
 using EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Application.Common.Extensions;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Dieser Controller stellt Endpunkte für den Zugriff auf die Umschlaghistorie bereit.

EnvelopeGenerator.API/Controllers/Interfaces/IAuthController.cs

@@ -1,7 +1,7 @@
 using System.Security.Claims;
 using Microsoft.AspNetCore.Authorization;
 
-namespace EnvelopeGenerator.Server.Controllers.Interfaces;
+namespace EnvelopeGenerator.API.Controllers.Interfaces;
 
 /// <summary>
 /// 

EnvelopeGenerator.API/Controllers/LocalizationController.cs

@@ -4,8 +4,9 @@ using Microsoft.AspNetCore.Localization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Localization;
+using EnvelopeGenerator.Application.Resources;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Controller für die Verwaltung der Lokalisierung und Spracheinstellungen.
@@ -19,6 +20,7 @@ public class LocalizationController : ControllerBase
 
     private readonly ILogger<LocalizationController> _logger;
     private readonly IStringLocalizer<Resource> _mLocalizer;
+    private readonly IStringLocalizer<Resource> _localizer;
     private readonly IMemoryCache _cache;
 
     /// <summary>
@@ -30,12 +32,14 @@ public class LocalizationController : ControllerBase
     /// <param name="_modelLocalizer">Lokalisierungsdienst für Modelle.</param>
     public LocalizationController(
         ILogger<LocalizationController> logger,
+        IStringLocalizer<Resource> localizer,
         IMemoryCache memoryCache,
-        IStringLocalizer<Resource> modelLocalizer)
+        IStringLocalizer<Resource> _modelLocalizer)
     {
         _logger = logger;
+        _localizer = localizer;
         _cache = memoryCache;
-        _mLocalizer = modelLocalizer;
+        _mLocalizer = _modelLocalizer;
     }
 
     /// <summary>
@@ -88,10 +92,10 @@ public class LocalizationController : ControllerBase
             var cookieValue = Request.Cookies[CookieRequestCultureProvider.DefaultCookieName];
 
             if (string.IsNullOrEmpty(cookieValue))
-                return "de-DE";
+                return null;
 
             var culture = CookieRequestCultureProvider.ParseCookieValue(cookieValue)?.Cultures[0];
-            return culture?.Value ?? "de-DE";
+            return culture?.Value ?? null;
         }
         set
         {

EnvelopeGenerator.API/Controllers/ReadOnlyController.cs

@@ -2,12 +2,12 @@ using DigitalData.Core.Abstraction.Application.DTO;
 using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 using EnvelopeGenerator.Application.Common.Interfaces.Services;
 using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Server.Extensions;
+using EnvelopeGenerator.API.Extensions;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Manages read-only envelope sharing flows.
@@ -41,14 +41,14 @@ public class ReadOnlyController : ControllerBase
     [Obsolete("Use MediatR")]
     public async Task<IActionResult> CreateAsync([FromBody] EnvelopeReceiverReadOnlyCreateDto createDto)
     {
-        var authReceiverMail = User.ReceiverMail();
+        var authReceiverMail = User.GetReceiverMailOfReceiver();
         if (authReceiverMail is null)
         {
             _logger.LogError("EmailAddress claim is not found in envelope-receiver-read-only creation process. Create DTO is:\n {dto}", JsonConvert.SerializeObject(createDto));
             return Unauthorized();
         }
 
-        var envelopeId = User.EnvelopeId();
+        var envelopeId = User.GetEnvelopeIdOfReceiver();
 
         createDto.AddedWho = authReceiverMail;
         createDto.EnvelopeId = envelopeId;

EnvelopeGenerator.API/Controllers/ReceiverController.cs

@@ -3,7 +3,7 @@ using EnvelopeGenerator.Application.Receivers.Queries;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.GeneratorAPI.Controllers;
 
 /// <summary>
 /// Controller für die Verwaltung von Empfängern.
@@ -33,16 +33,15 @@ public class ReceiverController : ControllerBase
     /// <param name="receiver">Die Abfrageparameter, einschließlich E-Mail-Adresse und Signatur.</param>
     /// <returns>Eine Liste von Empfängern oder ein Fehlerstatus.</returns>
     [HttpGet]
-    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
+    public async Task<IActionResult> Get([FromQuery] ReadReceiverQuery receiver)
-    public async Task<IActionResult> Get([FromQuery] ReadReceiverQuery? receiver = null, [FromQuery] bool onlyEmailAddress = false)
     {
-        var result = await _mediator.Send(receiver ?? new ReadReceiverQuery());
+        if (!receiver.HasAnyCriteria)
+        {
+            var all = await _mediator.Send(new ReadReceiverQuery());
+            return Ok(all);
+        }
 
-        if (result is null)
+        var result = await _mediator.Send(receiver);
-            return NotFound();
+        return result is null ? NotFound() : Ok(result);
-        else if (onlyEmailAddress)
-            return Ok(result.Select(r => r.EmailAddress).ToList());
-        else
-            return Ok(result);
     }
 }

EnvelopeGenerator.API/Controllers/TfaRegistrationController.cs

@@ -3,7 +3,7 @@ using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Application.Common.Interfaces.Services;
 using EnvelopeGenerator.Application.Resources;
 using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Server.Models;
+using EnvelopeGenerator.API.Models;
 using Ganss.Xss;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.Cookies;
@@ -12,7 +12,7 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Localization;
 using Microsoft.Extensions.Options;
 
-namespace EnvelopeGenerator.Server.Controllers;
+namespace EnvelopeGenerator.API.Controllers;
 
 /// <summary>
 /// Exposes endpoints for registering and managing two-factor authentication for envelope receivers.

EnvelopeGenerator.API/Documentation/AuthProxyDocumentFilter.cs

@@ -1,9 +1,9 @@
-using EnvelopeGenerator.Server.Models;
+using EnvelopeGenerator.API.Models;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
 using Swashbuckle.AspNetCore.SwaggerGen;
 
-namespace EnvelopeGenerator.Server.Documentation;
+namespace EnvelopeGenerator.API.Documentation;
 
 /// <summary>
 /// 
@@ -16,12 +16,6 @@ public sealed class AuthProxyDocumentFilter : IDocumentFilter
     /// <param name="swaggerDoc"></param>
     /// <param name="context"></param>
     public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
-    {
-        AddLoginOperation(swaggerDoc, context);
-        AddEnvelopeReceiverLoginOperation(swaggerDoc, context);
-    }
-
-    private static void AddLoginOperation(OpenApiDocument swaggerDoc, DocumentFilterContext context)
     {
         const string path = "/api/auth";
 
@@ -73,51 +67,4 @@ public sealed class AuthProxyDocumentFilter : IDocumentFilter
             }
         };
     }
-
-    private static void AddEnvelopeReceiverLoginOperation(OpenApiDocument swaggerDoc, DocumentFilterContext context)
-    {
-        const string path = "/api/Auth/envelope-receiver/{key}";
-
-        var bodySchema = context.SchemaGenerator.GenerateSchema(typeof(EnvelopeReceiverLogin), context.SchemaRepository);
-
-        var operation = new OpenApiOperation
-        {
-            Summary = "Envelope receiver login (auth-hub proxy)",
-            Description = "Proxies the envelope receiver login to the auth service. " +
-                          "The `cookie` query parameter is always forwarded as `true` so the auth service sets the per-envelope cookie automatically.",
-            Tags = [new() { Name = "Auth" }],
-            Parameters =
-            {
-                new OpenApiParameter
-                {
-                    Name = "key",
-                    In = ParameterLocation.Path,
-                    Required = true,
-                    Schema = new OpenApiSchema { Type = "string" },
-                    Description = "The unique envelope receiver key."
-                }
-            },
-            RequestBody = new OpenApiRequestBody
-            {
-                Required = false,
-                Content =
-                {
-                    ["multipart/form-data"] = new OpenApiMediaType { Schema = bodySchema }
-                }
-            },
-            Responses =
-            {
-                ["200"] = new OpenApiResponse { Description = "OK – per-envelope cookie set by auth service." },
-                ["401"] = new OpenApiResponse { Description = "Unauthorized – invalid or missing access code." }
-            }
-        };
-
-        swaggerDoc.Paths[path] = new OpenApiPathItem
-        {
-            Operations =
-            {
-                [OperationType.Post] = operation
-            }
-        };
-    }
 }

EnvelopeGenerator.API/EnvelopeClaimTypes.cs

@@ -0,0 +1,17 @@
+namespace EnvelopeGenerator.API;
+
+/// <summary>
+/// Provides custom claim types for envelope-related information.
+/// </summary>
+public static class EnvelopeClaimTypes
+{
+    /// <summary>
+    /// Claim type for the title of an envelope.
+    /// </summary>
+    public static readonly string Title = $"Envelope{nameof(Title)}";
+
+    /// <summary>
+    /// Claim type for the ID of an envelope.
+    /// </summary>
+    public static readonly string Id = $"Envelope{nameof(Id)}";
+}

EnvelopeGenerator.API/EnvelopeGenerator.API.csproj

@@ -0,0 +1,76 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFrameworks>net9.0</TargetFrameworks>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <PackageId>EnvelopeGenerator.GeneratorAPI</PackageId>
+    <Title></Title>
+    <Authors>Digital Data GmbH</Authors>
+    <Company>Digital Data GmbH</Company>
+    <Product>EnvelopeGenerator.GeneratorAPI</Product>
+    <Version>1.2.3</Version>
+    <FileVersion>1.2.3</FileVersion>
+    <AssemblyVersion>1.2.3</AssemblyVersion>
+    <PackageOutputPath>Copyright © 2025 Digital Data GmbH. All rights reserved.</PackageOutputPath>
+	<DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Remove="ClientApp\**" />
+    <Content Remove="ClientApp\**" />
+    <EmbeddedResource Remove="ClientApp\**" />
+    <None Remove="ClientApp\**" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="yarp.json" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AspNetCore.Scalar" Version="1.1.8" />
+    <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.OpenApi" Version="9.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.6" />
+    <PackageReference Include="Microsoft.Identity.Client" Version="4.82.1" />
+    <PackageReference Include="NLog" Version="5.2.5" />
+    <PackageReference Include="NLog.Web.AspNetCore" Version="5.3.0" />
+    <PackageReference Include="Scalar.AspNetCore" Version="2.2.1" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="8.1.1" />
+    <PackageReference Include="DigitalData.EmailProfilerDispatcher.Abstraction" Version="3.2.0" />
+    <PackageReference Include="Yarp.ReverseProxy" Version="2.1.0" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net7.0'">
+    <PackageReference Include="System.DirectoryServices" Version="7.0.1" />
+    <PackageReference Include="System.DirectoryServices.AccountManagement" Version="7.0.1" />
+    <PackageReference Include="System.DirectoryServices.Protocols" Version="7.0.1" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+    <PackageReference Include="System.DirectoryServices" Version="8.0.0" />
+    <PackageReference Include="System.DirectoryServices.AccountManagement" Version="8.0.1" />
+    <PackageReference Include="System.DirectoryServices.Protocols" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
+    <PackageReference Include="System.DirectoryServices" Version="9.0.4" />
+    <PackageReference Include="System.DirectoryServices.AccountManagement" Version="9.0.4" />
+    <PackageReference Include="System.DirectoryServices.Protocols" Version="9.0.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\EnvelopeGenerator.Application\EnvelopeGenerator.Application.csproj" />
+    <ProjectReference Include="..\EnvelopeGenerator.Domain\EnvelopeGenerator.Domain.csproj" />
+    <ProjectReference Include="..\EnvelopeGenerator.Infrastructure\EnvelopeGenerator.Infrastructure.csproj" />
+  </ItemGroup>
+
+</Project>

EnvelopeGenerator.API/Extensions/ReceiverClaimExtensions.cs

@@ -0,0 +1,101 @@
+using System.Linq;
+using System.Security.Claims;
+using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
+
+namespace EnvelopeGenerator.API.Extensions;
+
+/// <summary>
+/// Provides helper methods for working with envelope-specific authentication claims.
+/// </summary>
+public static class ReceiverClaimExtensions
+{
+    private static string GetRequiredClaimOfReceiver(this ClaimsPrincipal user, string claimType)
+    {
+        var value = user.FindFirstValue(claimType);
+        if (value is not null)
+        {
+            return value;
+        }
+
+        var identity = user.Identity;
+        var principalName = identity?.Name ?? "(anonymous)";
+        var authType = identity?.AuthenticationType ?? "(none)";
+        var availableClaims = string.Join(", ", user.Claims.Select(c => $"{c.Type}={c.Value}"));
+        var message = $"Required claim '{claimType}' is missing for user '{principalName}' (auth: {authType}). Available claims: [{availableClaims}].";
+        throw new InvalidOperationException(message);
+    }
+
+    /// <summary>
+    /// Gets the authenticated envelope UUID from the claims.
+    /// </summary>
+    public static string GetEnvelopeUuidOfReceiver(this ClaimsPrincipal user) => user.GetRequiredClaimOfReceiver(ClaimTypes.NameIdentifier);
+
+    /// <summary>
+    /// Gets the authenticated receiver signature from the claims.
+    /// </summary>
+    public static string GetReceiverSignatureOfReceiver(this ClaimsPrincipal user) => user.GetRequiredClaimOfReceiver(ClaimTypes.Hash);
+
+    /// <summary>
+    /// Gets the authenticated receiver display name from the claims.
+    /// </summary>
+    public static string GetReceiverNameOfReceiver(this ClaimsPrincipal user) => user.GetRequiredClaimOfReceiver(ClaimTypes.Name);
+
+    /// <summary>
+    /// Gets the authenticated receiver email address from the claims.
+    /// </summary>
+    public static string GetReceiverMailOfReceiver(this ClaimsPrincipal user) => user.GetRequiredClaimOfReceiver(ClaimTypes.Email);
+
+    /// <summary>
+    /// Gets the authenticated envelope title from the claims.
+    /// </summary>
+    public static string GetEnvelopeTitleOfReceiver(this ClaimsPrincipal user) => user.GetRequiredClaimOfReceiver(EnvelopeClaimTypes.Title);
+
+    /// <summary>
+    /// Gets the authenticated envelope identifier from the claims.
+    /// </summary>
+    public static int GetEnvelopeIdOfReceiver(this ClaimsPrincipal user)
+    {
+        var envIdStr = user.GetRequiredClaimOfReceiver(EnvelopeClaimTypes.Id);
+        if (!int.TryParse(envIdStr, out var envId))
+        {
+            throw new InvalidOperationException($"Claim '{EnvelopeClaimTypes.Id}' is not a valid integer.");
+        }
+
+        return envId;
+    }
+
+    /// <summary>
+    /// Signs in an envelope receiver using cookie authentication and attaches envelope claims.
+    /// </summary>
+    /// <param name="context">The current HTTP context.</param>
+    /// <param name="envelopeReceiver">Envelope receiver DTO to extract claims from.</param>
+    /// <param name="receiverRole">Role to attach to the authentication ticket.</param>
+    public static async Task SignInEnvelopeAsync(this HttpContext context, EnvelopeReceiverDto envelopeReceiver, string receiverRole)
+    {
+        var claims = new List<Claim>
+        {
+            new(ClaimTypes.NameIdentifier, envelopeReceiver.Envelope!.Uuid),
+            new(ClaimTypes.Hash, envelopeReceiver.Receiver!.Signature),
+            new(ClaimTypes.Name, envelopeReceiver.Name ?? string.Empty),
+            new(ClaimTypes.Email, envelopeReceiver.Receiver.EmailAddress),
+            new(EnvelopeClaimTypes.Title, envelopeReceiver.Envelope.Title),
+            new(EnvelopeClaimTypes.Id, envelopeReceiver.Envelope.Id.ToString()),
+            new(ClaimTypes.Role, receiverRole)
+        };
+
+        var claimsIdentity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+
+        var authProperties = new AuthenticationProperties
+        {
+            AllowRefresh = false,
+            IsPersistent = false
+        };
+
+        await context.SignInAsync(
+            CookieAuthenticationDefaults.AuthenticationScheme,
+            new ClaimsPrincipal(claimsIdentity),
+            authProperties);
+    }
+}

EnvelopeGenerator.API/Extensions/SenderClaimExtensions.cs

@@ -1,6 +1,6 @@
 using System.Security.Claims;
 
-namespace EnvelopeGenerator.Server.Extensions
+namespace EnvelopeGenerator.API.Extensions
 {
     /// <summary>
     /// Provides extension methods for extracting user information from a <see cref="ClaimsPrincipal"/>.

EnvelopeGenerator.API/Middleware/ExceptionHandlingMiddleware.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Middleware;
+namespace EnvelopeGenerator.API.Middleware;
 
 using DigitalData.Core.Exceptions;
 using Microsoft.AspNetCore.Http;
@@ -69,11 +69,6 @@ public class ExceptionHandlingMiddleware
                 message = notFoundEx.Message;
                 break;
 
-            case ForbiddenException forbiddenEx:
-                context.Response.StatusCode = (int)HttpStatusCode.Forbidden;
-                message = forbiddenEx.Message;
-                break;
-
             default:
                 logger.LogError(exception, "Unhandled exception occurred.");
                 context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;

EnvelopeGenerator.API/Models/Auth.cs

@@ -1,6 +1,5 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
-[Obsolete("Use auth DTO")]
 public record Auth(string? AccessCode = null, string? SmsCode = null, string? AuthenticatorCode = null, bool UserSelectSMS = default)
 {
     public bool HasAccessCode => AccessCode is not null;

EnvelopeGenerator.API/Models/AuthTokenKeys.cs

@@ -1,8 +1,8 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 /// <summary>
 /// Represents the keys and default values used for authentication token handling 
-/// within the Envelope Generator Server.
+/// within the Envelope Generator API.
 /// </summary>
 public class AuthTokenKeys
 {

EnvelopeGenerator.API/Models/ConnectionString.cs

@@ -0,0 +1,12 @@
+namespace EnvelopeGenerator.API.Models;
+
+/// <summary>
+/// 
+/// </summary>
+public class ConnectionString
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public string Value { get; set; } = string.Empty;
+}

EnvelopeGenerator.API/Models/ContactLink.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models
+namespace EnvelopeGenerator.API.Models
 {
     /// <summary>
     /// Represents a hyperlink for contact purposes with various HTML attributes.

EnvelopeGenerator.API/Models/Culture.cs

@@ -1,6 +1,6 @@
 using System.Globalization;
 
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 public class Culture
 {

EnvelopeGenerator.API/Models/Cultures.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 public class Cultures : List<Culture>
 {

EnvelopeGenerator.API/Models/CustomImages.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.API.Models;
+
+public class CustomImages : Dictionary<string, Image>
+{
+    public new Image this[string key] => TryGetValue(key, out var img) && img is not null ? img : new();
+}

EnvelopeGenerator.API/Models/ErrorViewModel.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 public class ErrorViewModel
 {

EnvelopeGenerator.API/Models/Image.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 public class Image
 {

EnvelopeGenerator.API/Models/Login.cs

@@ -1,6 +1,6 @@
 using System.ComponentModel.DataAnnotations;
 
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 /// <summary>
 /// Repräsentiert ein Login-Modell mit erforderlichem Passwort und optionaler ID und Benutzername.

EnvelopeGenerator.API/Models/MainViewModel.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 public class MainViewModel
 {

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/Annotation.cs

@@ -1,7 +1,7 @@
-using EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+using EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 public record Annotation : IAnnotation
 {

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/AnnotationParams.cs

@@ -1,7 +1,7 @@
-using EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+using EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 public class AnnotationParams
 {

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/Background.cs

@@ -1,6 +1,6 @@
 using System.Text.Json.Serialization;
 
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 /// <summary>
 /// The Background is an annotation for the PSPDF Kit. However, it has no function.

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/Color.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 public record Color
 {

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/Extensions.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 public static class Extensions
 {

EnvelopeGenerator.API/Models/PsPdfKitAnnotation/IAnnotation.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models.PsPdfKitAnnotation;
+namespace EnvelopeGenerator.API.Models.PsPdfKitAnnotation;
 
 public interface IAnnotation
 {

EnvelopeGenerator.API/Models/TFARegParams.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Server.Models;
+namespace EnvelopeGenerator.API.Models;
 
 /// <summary>
 /// Represents the parameters for two-factor authentication (2FA) registration.

EnvelopeGenerator.API/Program.cs

@@ -0,0 +1,270 @@
+using DigitalData.Core.API;
+using DigitalData.Core.Application;
+using EnvelopeGenerator.Infrastructure;
+using EnvelopeGenerator.Domain.Constants;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Localization;
+using Microsoft.EntityFrameworkCore;
+using System.Globalization;
+using Scalar.AspNetCore;
+using Microsoft.OpenApi.Models;
+using DigitalData.UserManager.DependencyInjection;
+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;
+using NLog.Web;
+using NLog;
+
+var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
+logger.Info("Logging initialized!");
+
+try
+{
+    var builder = WebApplication.CreateBuilder(args);
+
+    builder.Configuration.AddJsonFile("yarp.json", optional: true, reloadOnChange: true);
+
+    builder.Logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace);
+
+    if (!builder.Environment.IsDevelopment())
+    {
+        builder.Logging.ClearProviders();
+        builder.Host.UseNLog();
+    }
+
+    var config = builder.Configuration;
+
+    var deferredProvider = new DeferredServiceProvider();
+
+    builder.Services.AddControllers();
+    builder.Services.AddHttpClient();
+    builder.Services.AddReverseProxy().LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"));
+
+    // CORS Policy
+    var allowedOrigins = config.GetSection("AllowedOrigins").Get<string[]>() ??
+        throw new InvalidOperationException("AllowedOrigins section is missing in the configuration.");
+    builder.Services.AddCors(options =>
+    {
+        options.AddPolicy("AllowSpecificOriginsPolicy", builder =>
+        {
+            builder.WithOrigins(allowedOrigins)
+                   .SetIsOriginAllowedToAllowWildcardSubdomains()
+                   .AllowAnyMethod()
+                   .AllowAnyHeader()
+                   .AllowCredentials();
+        });
+    });
+
+    // Swagger
+    builder.Services.AddEndpointsApiExplorer();
+    builder.Services.AddSwaggerGen(options =>
+    {
+        options.SwaggerDoc("v1", new OpenApiInfo
+        {
+            Version = "v1",
+            Title = "signFLOW Absender-API",
+            Description = "Eine API zur Verwaltung der Erstellung, des Versands und der Nachverfolgung von Umschlägen in der signFLOW-Anwendung.",
+            Contact = new OpenApiContact
+            {
+                Name = "Digital Data GmbH",
+                Url = new Uri("https://digitaldata.works/digitale-signatur#kontakt"),
+                Email = "info-flow@digitaldata.works"
+            },
+        });
+
+        options.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
+        {
+            Name = "Authorization",
+            Type = SecuritySchemeType.Http,
+            Scheme = "bearer",
+            BearerFormat = "JWT",
+            In = ParameterLocation.Header,
+            Description = "JWT-Autorisierungs-Header unter Verwendung des Bearer-Schemas.",
+        });
+
+        options.AddSecurityRequirement(new OpenApiSecurityRequirement
+    {
+        {
+            new OpenApiSecurityScheme
+            {
+                Reference = new OpenApiReference
+                {
+                    Type = Microsoft.OpenApi.Models.ReferenceType.SecurityScheme,
+                    Id = "Bearer"
+                }
+            },
+            Array.Empty<string>()
+        }
+    });
+
+        var xmlFiles = Directory.GetFiles(AppContext.BaseDirectory, "*.xml");
+        foreach (var xmlFile in xmlFiles)
+        {
+            options.IncludeXmlComments(xmlFile);
+        }
+
+        options.DocumentFilter<EnvelopeGenerator.API.Documentation.AuthProxyDocumentFilter>();
+    });
+    builder.Services.AddOpenApi();
+
+    //AddEF Core dbcontext
+    var useDbMigration = Environment.GetEnvironmentVariable("MIGRATION_TEST_MODE") == true.ToString() || config.GetValue<bool>("UseDbMigration");
+    var cnnStrName = useDbMigration ? "DbMigrationTest" : "Default";
+    var connStr = config.GetConnectionString(cnnStrName)
+        ?? throw new InvalidOperationException($"Connection string '{cnnStrName}' is missing in the application configuration.");
+
+    builder.Services.Configure<ConnectionString>(cs => cs.Value = connStr);
+
+    builder.Services.AddDbContext<EGDbContext>(options => options.UseSqlServer(connStr));
+
+    builder.Services.AddAuthHubClient(config.GetSection("AuthClientParams"));
+
+    var authTokenKeys = config.GetOrDefault<AuthTokenKeys>();
+
+    builder.Services.AddAuthentication(options =>
+    {
+        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
+        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+    })
+        .AddJwtBearer(opt =>
+        {
+            opt.TokenValidationParameters = new TokenValidationParameters
+            {
+                ValidateIssuerSigningKey = true,
+                IssuerSigningKeyResolver = (token, securityToken, identifier, parameters) =>
+                {
+                    var clientParams = deferredProvider.GetOptions<ClientParams>();
+                    var publicKey = clientParams!.PublicKeys.Get(authTokenKeys.Issuer, authTokenKeys.Audience);
+                    return [publicKey.SecurityKey];
+                },
+                ValidateIssuer = true,
+                ValidIssuer = authTokenKeys.Issuer,
+                ValidateAudience = true,
+                ValidAudience = authTokenKeys.Audience,
+            };
+
+            opt.Events = new JwtBearerEvents
+            {
+                OnMessageReceived = context =>
+                {
+                    // if there is no token read related cookie or query string
+                    if (context.Token is null)   // if there is no token
+                    {
+                        if (context.Request.Cookies.TryGetValue(authTokenKeys.Cookie, out var cookieToken) && cookieToken is not null)
+                            context.Token = cookieToken;
+                        else if (context.Request.Query.TryGetValue(authTokenKeys.QueryString, out var queryStrToken))
+                            context.Token = queryStrToken;
+                    }
+                    return Task.CompletedTask;
+                }
+            };
+        });
+
+    // Authentication
+    builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+    .AddCookie(options =>
+    {
+        options.Cookie.HttpOnly = true;  // Makes the cookie inaccessible to client-side scripts for security
+        options.Cookie.SecurePolicy = CookieSecurePolicy.SameAsRequest; // Ensures cookies are sent over HTTPS only
+        options.Cookie.SameSite = SameSiteMode.Strict; // Protects against CSRF attacks by restricting how cookies are sent with requests from external sites
+        options.LoginPath = "/api/auth/login";
+        options.LogoutPath = "/api/auth/logout";
+        options.SlidingExpiration = true;
+    });
+
+    builder.Services.AddAuthorizationBuilder()
+        .AddPolicy(AuthPolicy.SenderOrReceiver, policy =>
+            policy.RequireRole(Role.Sender, Role.Receiver.Full))
+        .AddPolicy(AuthPolicy.Sender, policy =>
+            policy.RequireRole(Role.Sender))
+        .AddPolicy(AuthPolicy.Receiver, policy =>
+            policy.RequireRole(Role.Receiver.Full))
+        .AddPolicy(AuthPolicy.ReceiverTFA, policy =>
+            policy.RequireRole(Role.Receiver.TFA));
+
+    // User manager
+#pragma warning disable CS0618 // Type or member is obsolete
+    builder.Services.AddUserManager<EGDbContext>();
+#pragma warning restore CS0618 // Type or member is obsolete
+
+    // LDAP
+    builder.ConfigureBySection<DirectorySearchOptions>();
+    builder.Services.AddDirectorySearchService(config.GetSection("DirectorySearchOptions"));
+
+    // Localizer
+    builder.Services.AddCookieBasedLocalizer();
+
+    // Envelope generator serives
+#pragma warning disable CS0618 // Type or member is obsolete
+    builder.Services
+        .AddEnvelopeGeneratorInfrastructureServices(opt =>
+        {
+            opt.AddDbTriggerParams(config);
+            opt.AddDbContext((provider, options) =>
+            {
+                var logger = provider.GetRequiredService<ILogger<EGDbContext>>();
+                options.UseSqlServer(connStr)
+                        .LogTo(log => logger.LogInformation("{log}", log), Microsoft.Extensions.Logging.LogLevel.Trace)
+                        .EnableSensitiveDataLogging()
+                        .EnableDetailedErrors();
+            });
+            opt.AddSQLExecutor(executor => executor.ConnectionString = connStr);
+        })
+        .AddEnvelopeGeneratorServices(config);
+#pragma warning restore CS0618 // Type or member is obsolete
+
+    var app = builder.Build();
+
+    deferredProvider.Factory = () => app.Services;
+
+    app.UseMiddleware<ExceptionHandlingMiddleware>();
+
+    app.MapOpenApi();
+
+    // Configure the HTTP request pipeline.
+    if (app.Environment.IsDevelopment() || (app.IsDevOrDiP() && config.GetValue<bool>("UseSwagger")))
+    {
+        app.UseSwagger();
+        app.UseSwaggerUI();
+        app.MapScalarApiReference();
+    }
+
+    // Set CORS policy
+    app.UseCors("AllowSpecificOriginsPolicy");
+
+    // Localizer
+    string[] supportedCultureNames = ["de-DE", "en-US"];
+    IList<CultureInfo> list = [.. supportedCultureNames.Select(cn => new CultureInfo(cn))];
+    var cultureInfo = list.FirstOrDefault() ?? throw new InvalidOperationException("There is no supported culture.");
+    var requestLocalizationOptions = new RequestLocalizationOptions
+    {
+        SupportedCultures = list,
+        SupportedUICultures = list
+    };
+    requestLocalizationOptions.RequestCultureProviders.Add(new QueryStringRequestCultureProvider());
+    app.UseRequestLocalization(requestLocalizationOptions);
+
+
+    app.UseHttpsRedirection();
+
+    app.UseDefaultFiles();
+    app.UseStaticFiles();
+
+    app.UseAuthentication();
+    app.UseAuthorization();
+
+    app.MapReverseProxy();
+    app.MapControllers();
+
+    app.Run();
+}
+catch (Exception ex)
+{
+    logger.Error(ex, "Stopped program because of exception");
+    throw;
+}

EnvelopeGenerator.API/Properties/launchSettings.json

@@ -4,36 +4,37 @@
     "windowsAuthentication": false,
     "anonymousAuthentication": true,
     "iisExpress": {
-      "applicationUrl": "http://localhost:5131",
+      "applicationUrl": "http://localhost:4176",
-      "sslPort": 8088
+      "sslPort": 44300
     }
   },
   "profiles": {
-    "https (Blazor UI)": {
+    "http": {
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": true,
-      "applicationUrl": "https://localhost:8088;http://localhost:5131",
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5131",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
-      },
+      }
-      "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}"
     },
-    "https (Swagger API)": {
+    "https": {
       "commandName": "Project",
       "dotnetRunMessages": true,
-      "launchBrowser": true,
+      "launchBrowser": false,
       "launchUrl": "swagger",
       "applicationUrl": "https://localhost:8088;http://localhost:5131",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
     },
-    "http (Development)": {
+    "angular": {
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": true,
-      "applicationUrl": "http://localhost:5131",
+      "launchUrl": "",
+      "applicationUrl": "https://localhost:7174;http://localhost:5131",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
@@ -41,6 +42,7 @@
     "IIS Express": {
       "commandName": "IISExpress",
       "launchBrowser": true,
+      "launchUrl": "swagger",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }

EnvelopeGenerator.API/appsettings.Development.json

@@ -1,10 +1,10 @@
 {
-"Logging": {
+  "Logging": {
-  "LogLevel": {
+    "LogLevel": {
-    "Default": "Information",
+      "Default": "Information",
-    "Microsoft.AspNetCore": "Warning"
+      "Microsoft.AspNetCore": "Warning"
-  }
+    }
-},
+  },
   "AuthClientParams": {
     "Url": "http://172.24.12.39:9090/auth-hub",
     "PublicKeys": [

EnvelopeGenerator.API/appsettings.json

@@ -1,7 +1,6 @@
 {
   "UseSwagger": true,
-  "UseScalar": true,
+  "UseDbMigration": true,
-  "UseDbMigration": false,
   "DiPMode": true,
   "Logging": {
     "LogLevel": {
@@ -10,15 +9,9 @@
     }
   },
   "AllowedHosts": "*",
-  "AllowedOrigins": [
+  "AllowedOrigins": [ "http://localhost:4200", "http://172.24.12.39:9090", "https://localhost:8088", "http://localhost:5131", "http://localhost:7192" ],
-    "http://localhost:4200",
-    "http://172.24.12.39:9090",
-    "https://localhost:8088",
-    "http://localhost:5131",
-    "http://localhost:7192"
-  ],
   "ConnectionStrings": {
-    "Default": "Server=SDD-VHP04-SQL19\\DD_TESTING01;Database=DD_ECM;User Id=sa;Password=123456789dD!;Encrypt=false;TrustServerCertificate=True;",
+    "Default": "Server=SDD-VMP04-SQL17\\DD_DEVELOP01;Database=DD_ECM;User Id=sa;Password=dd;Encrypt=false;TrustServerCertificate=True;",
     "DbMigrationTest": "Server=SDD-VMP04-SQL17\\DD_DEVELOP01;Database=DD_ECM_DATA_MIGR_TEST;User Id=sa;Password=dd;Encrypt=false;TrustServerCertificate=True;"
   },
   "DirectorySearchOptions": {
@@ -46,15 +39,6 @@
     "Issuer": "auth.digitaldata.works",
     "Audience": "sign-flow.digitaldata.works"
   },
-  "ApiOptions": {
-    "BaseUrl": ""
-  },
-  "PdfViewerOptions": {
-    "ThumbnailBaseScale": 0.75,
-    "ThumbnailEnableHiDPI": true,
-    "MainCanvasEnableHiDPI": true,
-    "ZoomStepPercentage": 5
-  },
   "PSPDFKitLicenseKey": "SXCtGGY9XA-31OGUXQK-r7c6AkdLGPm2ljuyDr1qu0kkhLvydg-Do-fxpNUF4Rq3fS_xAnZRNFRHbXpE6sQ2BMcCSVTcXVJO6tPviexjpiT-HnrDEySlUERJnnvh-tmeOWprxS6BySPnSILkmaVQtUfOIUS-cUbvvEYHTvQBKbSF8di4XHQFyfv49ihr51axm3NVV3AXwh2EiKL5C5XdqBZ4sQ4O7vXBjM2zvxdPxlxdcNYmiU83uAzw7B83O_jubPzya4CdUHh_YH7Nlp2gP56MeG1Sw2JhMtfG3Rj14Sg4ctaeL9p6AEWca5dDjJ2li5tFIV2fQSsw6A_cowLu0gtMm5i8IfJXeIcQbMC2-0wGv1oe9hZYJvFMdzhTM_FiejM0agemxt3lJyzuyP8zbBSOgp7Si6A85krLWPZptyZBTG7pp7IHboUHfPMxCXqi-zMsqewOJtQBE2mjntU-lPryKnssOpMPfswwQX7QSkJYV5EMqNmEhQX6mEkp2wcqFzMC7bJQew1aO4pOpvChUaMvb1vgRek0HxLag0nwQYX2YrYGh7F_xXJs-8HNwJe8H0-eW4x4faayCgM5rB5772CCCsD9ThZcvXFrjNHHLGJ8WuBUFm6LArvSfFQdii_7j-_sqHMpeKZt26NFgivj1A==",
   "Content-Security-Policy": [ // The first format parameter {0} will be replaced by the nonce value.
     "default-src 'self'",
@@ -71,7 +55,7 @@
     "throwConfigExceptions": true,
     "variables": {
       "logDirectory": "E:\\LogFiles\\Digital Data\\signFlow",
-      "logFileNamePrefix": "${shortdate}-ECM.EnvelopeGenerator.Server"
+      "logFileNamePrefix": "${shortdate}-ECM.EnvelopeGenerator.Web"
     },
     "targets": {
       "infoLogs": {
@@ -146,17 +130,15 @@
   "CustomImages": {
     "App": {
       "Src": "/img/DD_signFLOW_LOGO.png",
-      "Height": "28px",
       "Classes": {
-        "Main": "signflow-app-logo"
+        "Main": "signFlow-logo"
       }
     },
     "Company": {
       "Src": "/img/digital_data.svg",
-      "Height": "33px",
       "Classes": {
-        "Show": "signflow-company-logo",
+        "Show": "dd-show-logo",
-        "Locked": "signflow-company-logo"
+        "Locked": "dd-locked-logo"
       }
     }
   },
@@ -186,21 +168,12 @@
   },
   "DbTriggerParams": {
     "Envelope": [ "TBSIG_ENVELOPE_HISTORY_AFT_INS" ],
-    "History": [ "TBSIG_ENVELOPE_HISTORY_AFT_INS" ],
+    "EnvelopeHistory": [ "TBSIG_ENVELOPE_HISTORY_AFT_INS" ],
-    "DocReceiverElement": [ "TBSIG_DOCUMENT_RECEIVER_ELEMENT_AFT_INS", "TBSIG_DOCUMENT_RECEIVER_ELEMENT_AFT_UPD" ],
     "EmailOut": [ "TBEMLP_EMAIL_OUT_AFT_INS", "TBEMLP_EMAIL_OUT_AFT_UPD" ],
     "EnvelopeReceiverReadOnly": [ "TBSIG_ENVELOPE_RECEIVER_READ_ONLY_UPD" ],
     "Receiver": [],
     "EmailTemplate": [ "TBSIG_EMAIL_TEMPLATE_AFT_UPD" ]
   },
-  "Cache": {
-    "SignatureCacheExpiration": null,
-    "SqlServer": {
-      "ConnectionString": null,
-      "SchemaName": "dbo",
-      "TableName": "TBDD_CACHE"
-    }
-  },
   "MainPageTitle": null,
   "AnnotationParams": {
     "Background": {

EnvelopeGenerator.API/yarp.json

@@ -10,20 +10,6 @@
         "Transforms": [
           { "PathSet": "/api/auth/sign-flow" }
         ]
-      },
-      "auth-envelope-receiver-login": {
-        "ClusterId": "auth-hub",
-        "Match": {
-          "Path": "/api/Auth/envelope-receiver/{key}",
-          "Methods": [ "POST" ]
-        },
-        "Transforms": [
-          { "PathPattern": "/api/auth/envelope-receiver/{key}" },
-          {
-            "QueryValueParameter": "cookie",
-            "Set": "true"
-          }
-        ]
       }
     },
     "Clusters": {

EnvelopeGenerator.Application/Common/Dto/AnnotationDto.cs

@@ -8,77 +8,42 @@ public record AnnotationCreateDto
     /// <summary>
     /// 
     /// </summary>
-    public long Id { get; set; }
+    public int ElementId { get; init; }
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
+    public string Name { get; init; } = null!;
-    public int ElementId { get; init; } = -1;
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
+    public string Value { get; init; } = null!;
-    public string Name { get; init; } = string.Empty;
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
+    public string Type { get; init; } = null!;
-    public string Value { get; init; } = string.Empty;
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
-    public string Type { get; init; } = string.Empty;
-
-    /// <summary>
-    /// Horizontal position of the signature field on the page.
-    /// <br/><br/>
-    /// <b>Unit:</b> INCHES (GdPicture14 native), origin at the <b>top-left</b> corner of the page, X increases to the right.
-    /// <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 (PSPDFKit, iText7 use 1/72 inch).
-    /// Convert: <c>xPt = xInches * 72.0</c>
-    /// </summary>
     public double? X { get; init; }
 
     /// <summary>
-    /// Vertical position of the signature field on the page.
+    /// 
-    /// <br/><br/>
-    /// <b>Unit:</b> INCHES (GdPicture14 native), origin at the <b>top-left</b> corner of the page, Y increases downward.
-    /// <br/>
-    /// <b>Conversion to DevExpress:</b> Multiply by 100 (DX uses 1/100 inch).
-    /// Convert: <c>yDX = yInches * 100.0</c>
-    /// <br/>
-    /// <b>Conversion to PDF Points (top-left origin):</b> Multiply by 72.
-    /// Convert: <c>yPt = yInches * 72.0</c>
-    /// <br/>
-    /// <b>Conversion to PDF Points (bottom-left origin - iText7):</b> Y-flip required.
-    /// Convert: <c>yPt = (pageHeightInches - yInches - elemHeightInches) * 72.0</c>
     /// </summary>
     public double? Y { get; init; }
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
     public double? Width { get; init; }
 
     /// <summary>
     /// 
     /// </summary>
-    [Obsolete("Not required for DevExpress")]
     public double? Height { get; init; }
-
-    /// <summary>
-    /// Added to eliminate the need for SignatureDto in DevExpress 
-    /// </summary>
-    public int? Page { get; init; }
 }
 
 /// <summary>

EnvelopeGenerator.Application/Common/Dto/ConfigDto.cs

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

EnvelopeGenerator.Application/Common/Dto/DocumentDto.cs

@@ -1,8 +1,11 @@
-namespace EnvelopeGenerator.Application.Common.Dto;
+using Microsoft.AspNetCore.Mvc;
+
+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>
@@ -28,5 +31,5 @@ public class DocumentDto
     /// <summary>
     /// Gets or sets the collection of elements associated with the document for receiver interactions, if any.
     /// </summary>
-    public IEnumerable<DocReceiverElementDto>? Elements { get; set; }
+    public IEnumerable<SignatureDto>? Elements { get; set; }
 }

EnvelopeGenerator.Application/Common/Dto/DocumentStatusDto.cs

@@ -1,10 +1,12 @@
 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

@@ -1,15 +1,16 @@
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using DigitalData.UserManager.Application.DTOs.User;
-using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
-using EnvelopeGenerator.Application.Common.Dto.History;
 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>
@@ -125,14 +126,4 @@ public record EnvelopeDto : IEnvelope
     /// 
     /// </summary>
     public IEnumerable<DocumentDto>? Documents { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public IEnumerable<EnvelopeReceiverDto>? EnvelopeReceivers { get; set; }
-
-    /// <summary>
-    /// Envelope history entries tracking actions like DocumentSigned, EnvelopeOpened, etc.
-    /// </summary>
-    public IEnumerable<HistoryDto>? Histories { get; set; }
 }

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

@@ -1,12 +1,13 @@
 using DigitalData.EmailProfilerDispatcher.Abstraction.Attributes;
 using EnvelopeGenerator.Application.Common.Dto.Receiver;
-using EnvelopeGenerator.Domain.Constants;
+using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
 
 /// <summary>
 /// 
 /// </summary>
+[ApiExplorerSettings(IgnoreApi = true)]
 public record EnvelopeReceiverDto
 {
     /// <summary>
@@ -60,11 +61,6 @@ public record EnvelopeReceiverDto
     /// </summary>
     public string? PrivateMessage { get; init; }
 
-    /// <summary>
-    /// 
-    /// </summary>
-    public string? AccessCode { get; init; }
-
     /// <summary>
     /// 
     /// </summary>
@@ -79,13 +75,4 @@ public record EnvelopeReceiverDto
     /// 
     /// </summary>
     public bool HasPhoneNumber { get; init; }
-
-    /// <summary>
-    /// Indicates whether this receiver has signed the envelope.
-    /// Checks if there is a DocumentSigned history entry for this receiver in the envelope's history.
-    /// </summary>
-    public bool Signed => Envelope?.Histories?.Any(h => 
-        h.Receiver?.Id == ReceiverId && 
-        h.Status == EnvelopeStatus.DocumentSigned
-    ) ?? false;
 }

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

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

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

@@ -1,4 +1,5 @@
-using System.ComponentModel.DataAnnotations;
+using Microsoft.AspNetCore.Mvc;
+using System.ComponentModel.DataAnnotations;
 using System.Text.Json.Serialization;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
@@ -7,6 +8,7 @@ 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

@@ -1,4 +1,6 @@
-using EnvelopeGenerator.Application.Common.Dto.Receiver;
+using EnvelopeGenerator.Application.Common.Dto;
+using EnvelopeGenerator.Application.Common.Dto.Receiver;
+using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 
@@ -6,6 +8,7 @@ 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

@@ -1,8 +1,11 @@
-namespace EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
+using Microsoft.AspNetCore.Mvc;
+
+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

@@ -1,8 +1,11 @@
-namespace EnvelopeGenerator.Application.Common.Dto;
+using Microsoft.AspNetCore.Mvc;
+
+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/MappingProfile.cs

@@ -7,9 +7,7 @@ using EnvelopeGenerator.Application.Common.Dto.Receiver;
 using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Domain.Entities;
 
-using EnvelopeGenerator.Application.Common.Dto;
+namespace EnvelopeGenerator.Application.Common.Dto;
-
-namespace EnvelopeGenerator.Application.Common;
 
 /// <summary>
 /// Represents the AutoMapper profile configuration for mapping between
@@ -25,39 +23,34 @@ public class MappingProfile : Profile
     {
         // Entity to DTO mappings
         CreateMap<Config, ConfigDto>();
-        CreateMap<DocReceiverElement, DocReceiverElementDto>();
+        CreateMap<Signature, SignatureDto>();
         CreateMap<DocumentStatus, DocumentStatusDto>();
         CreateMap<EmailTemplate, EmailTemplateDto>();
-        CreateMap<Envelope, EnvelopeDto>()
+        CreateMap<Envelope, EnvelopeDto>();
-            .ForMember(dest => dest.EnvelopeTypeTitle,
-                       opt  => opt.MapFrom(src => src.Type != null ? src.Type.Title : null));
         CreateMap<Document, DocumentDto>();
-        CreateMap<History, HistoryDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
+        CreateMap<Domain.Entities.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<Domain.Entities.History, HistoryCreateDto>().ForMember(dest => dest.ActionDate, opt => opt.MapFrom(src => src.ChangedWhen));
-        CreateMap<EnvelopeReceiver, EnvelopeReceiverDto>();
+        CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverDto>();
-        CreateMap<EnvelopeReceiver, EnvelopeReceiverSecretDto>();
+        CreateMap<Domain.Entities.EnvelopeReceiver, EnvelopeReceiverSecretDto>();
         CreateMap<EnvelopeType, EnvelopeTypeDto>();
-        CreateMap<Receiver, ReceiverDto>();
+        CreateMap<Domain.Entities.Receiver, ReceiverDto>();
-        CreateMap<EnvelopeReceiverReadOnly, EnvelopeReceiverReadOnlyDto>();
+        CreateMap<Domain.Entities.EnvelopeReceiverReadOnly, EnvelopeReceiverReadOnlyDto>();
         CreateMap<ElementAnnotation, AnnotationDto>();
 
         // DTO to Entity mappings
         CreateMap<ConfigDto, Config>();
-        CreateMap<DocReceiverElementDto, DocReceiverElement>();
+        CreateMap<SignatureDto, Signature>();
-        CreateMap<Signature, DocReceiverElement>()
-            .ForMember(dest => dest.Ink, opt => opt.MapFrom(src => src.DataUrl.MapDataUrlToRequiredBytes()))
-            .MapChangedWhen();
         CreateMap<DocumentStatusDto, DocumentStatus>();
         CreateMap<EmailTemplateDto, EmailTemplate>();
         CreateMap<EnvelopeDto, Envelope>();
         CreateMap<DocumentDto, Document>();
-        CreateMap<HistoryDto, History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
+        CreateMap<HistoryDto, Domain.Entities.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<HistoryCreateDto, Domain.Entities.History>().ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(src => src.ActionDate));
-        CreateMap<EnvelopeReceiverDto, EnvelopeReceiver>();
+        CreateMap<EnvelopeReceiverDto, Domain.Entities.EnvelopeReceiver>();
         CreateMap<EnvelopeTypeDto, EnvelopeType>();
-        CreateMap<ReceiverDto, Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
+        CreateMap<ReceiverDto, Domain.Entities.Receiver>().ForMember(rcv => rcv.EnvelopeReceivers, rcvReadDto => rcvReadDto.Ignore());
-        CreateMap<EnvelopeReceiverReadOnlyCreateDto, EnvelopeReceiverReadOnly>();
+        CreateMap<EnvelopeReceiverReadOnlyCreateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
-        CreateMap<EnvelopeReceiverReadOnlyUpdateDto, EnvelopeReceiverReadOnly>();
+        CreateMap<EnvelopeReceiverReadOnlyUpdateDto, Domain.Entities.EnvelopeReceiverReadOnly>();
         CreateMap<AnnotationCreateDto, ElementAnnotation>()
             .MapAddedWhen();
 

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

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

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

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

EnvelopeGenerator.Application/Common/Dto/PsPdfKitAnnotation.cs

@@ -1,11 +0,0 @@
-using System.Dynamic;
-
-namespace EnvelopeGenerator.Application.Common.Dto;
-
-/// <summary>
-/// Represents PSPDFKit annotation data.
-/// </summary>
-/// <param name="Instant">Instant annotation data.</param>
-/// <param name="Structured">Structured annotation data.</param>
-[Obsolete("The PSPDFKit library is deprecated.")]
-public record PsPdfKitAnnotation(ExpandoObject Instant, IEnumerable<AnnotationCreateDto> Structured);

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

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

EnvelopeGenerator.Application/Common/Dto/Signature.cs

@@ -1,65 +0,0 @@
-namespace EnvelopeGenerator.Application.Common.Dto;
-
-/// <summary>
-/// Represents a captured signature with metadata created by the receiver in the signature popup.
-/// This model holds the signature image (as base64 data URL) along with signer information
-/// used for rendering applied signatures on the PDF canvas.
-/// </summary>
-/// <remarks>
-/// <b>Used in:</b> EnvelopeViewer.razor signature popup workflow
-/// <br/>
-/// <b>Creation:</b> User draws/types/uploads signature and fills required fields
-/// </remarks>
-public sealed record Signature
-{
-    /// <summary>
-    /// TBDD_DOCUMENT_RECEIVER_ELEMENT.ID - identifies the specific signature field on the PDF page.
-    /// </summary>
-    public required int Id { get; init; }
-
-    /// <summary>
-    /// Base64-encoded data URL of the signature image.
-    /// <br/>
-    /// <b>Format:</b> <c>data:image/png;base64,iVBORw0KG...</c>
-    /// <br/>
-    /// <b>Source:</b> Canvas.toDataURL() from signature pad (draw/text/image tabs)
-    /// <br/>
-    /// <b>Usage:</b> Set as <c>img.src</c> in applied signature overlay
-    /// </summary>
-    public required string DataUrl { get; init; }
-
-    /// <summary>
-    /// Full name of the signer (first and last name).
-    /// <br/>
-    /// <b>Required:</b> Yes (validated in popup)
-    /// <br/>
-    /// <b>Example:</b> "Max Mustermann"
-    /// </summary>
-    public required string FullName { get; init; }
-
-    private readonly string? _position = null;
-
-    /// <summary>
-    /// Job title or position of the signer.
-    /// <br/>
-    /// <b>Required:</b> No (optional field)
-    /// <br/>
-    /// <b>Example:</b> "Geschäftsführer" or empty string
-    /// </summary>
-    public string? Position
-    {
-        get => _position;
-        init => _position = string.IsNullOrWhiteSpace(value) ? value : null;
-    }
-
-    /// <summary>
-    /// Location/place where the signature was created.
-    /// <br/>
-    /// <b>Required:</b> Yes (validated in popup)
-    /// <br/>
-    /// <b>Display:</b> Shown with current date in German format (dd.MM.yyyy)
-    /// <br/>
-    /// <b>Example:</b> "Berlin" ? rendered as "Berlin, 26.01.2025"
-    /// </summary>
-    public required string Place { get; init; }
-}

EnvelopeGenerator.Application/Common/Dto/SignatureDto.cs

@@ -1,12 +1,13 @@
-using EnvelopeGenerator.Domain.Constants;
+using EnvelopeGenerator.Domain.Interfaces;
-using EnvelopeGenerator.Domain.Interfaces;
+using Microsoft.AspNetCore.Mvc;
 
 namespace EnvelopeGenerator.Application.Common.Dto;
 
 /// <summary>
 /// Data Transfer Object representing a positioned element assigned to a document receiver.
 /// </summary>
-public class DocReceiverElementDto : IDocReceiverElement
+[ApiExplorerSettings(IgnoreApi = true)]
+public class SignatureDto : ISignature
 {
     /// <summary>
     /// Gets or sets the unique identifier of the element.
@@ -92,34 +93,4 @@ public class DocReceiverElementDto : IDocReceiverElement
     /// Gets or sets the left position of the element (in layout terms).
     /// </summary>
     public double Left => X;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public IEnumerable<AnnotationDto>? Annotations { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public SenderAppType SenderAppType { get; set; } = SenderAppType.LegacyFormApp;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public string? FullName { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public string? Position { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public string? Place { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public byte[]? Ink { get; set; }
 }

EnvelopeGenerator.Application/Common/Dto/UserPreferencesDto.cs

@@ -1,39 +0,0 @@
-namespace EnvelopeGenerator.Application.Common.Dto;
-
-/// <summary>
-/// Represents a user's UI preferences stored in the distributed cache (dbo.TBDD_CACHE).
-/// </summary>
-public sealed record UserPreferencesDto
-{
-    /// <summary>
-    /// The active DevExpress theme name.
-    /// Allowed values: "blazing-berry", "fluent", "purple"
-    /// </summary>
-    public string ThemeName { get; set; } = "blazing-berry";
-
-    /// <summary>
-    /// Whether dark mode is active.
-    /// Default: false (light mode).
-    /// </summary>
-    public bool IsDarkMode { get; set; } = false;
-
-    /// <summary>
-    /// Persisted DxGrid layout states, keyed by a stable grid identifier.
-    /// Example keys: "sender.active-envelopes", "sender.completed-envelopes"
-    /// Values are opaque JSON strings produced by DxGrid.SaveLayoutAsync().
-    /// </summary>
-    public Dictionary<string, string> GridLayouts { get; set; } = new();
-
-    /// <summary>
-    /// The authenticated user's display name ("{GivenName} {Surname}").
-    /// Populated by the server on GET responses from JWT claims.
-    /// NOT persisted in cache — injected at read time by UserPreferencesController.
-    /// Ignored on PUT requests.
-    /// </summary>
-    public string? DisplayName { get; set; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public static UserPreferencesDto Default { get; } = new UserPreferencesDto();
-}

EnvelopeGenerator.Application/Common/Extensions/AutoMapperAuditingExtensions.cs

@@ -1,6 +1,5 @@
 using AutoMapper;
 using EnvelopeGenerator.Domain.Interfaces.Auditing;
-using System;
 
 namespace EnvelopeGenerator.Application.Common.Extensions;
 
@@ -14,29 +13,12 @@ public static class AutoMapperAuditingExtensions
     /// </summary>
     public static IMappingExpression<TSource, TDestination> MapAddedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
         where TDestination : IHasAddedWhen
-        => expression.ForMember(dest => dest.AddedWhen, opt => opt.MapFrom(_ => DateTime.Now));
+        => expression.ForMember(dest => dest.AddedWhen, opt => opt.MapFrom(_ => DateTime.UtcNow));
 
     /// <summary>
     /// Maps <see cref="IHasChangedWhen.ChangedWhen"/> to the current UTC time.
     /// </summary>
     public static IMappingExpression<TSource, TDestination> MapChangedWhen<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
         where TDestination : IHasChangedWhen
-        => expression.ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(_ => DateTime.Now));
+        => expression.ForMember(dest => dest.ChangedWhen, opt => opt.MapFrom(_ => DateTime.UtcNow));
-
-    /// <summary>
-    /// Converts a base64 data URL string to a byte array.
-    /// Handles data URLs in the format: "data:image/png;base64,iVBORw0KG..."
-    /// </summary>
-    /// <param name="dataUrl">The base64 data URL string from Canvas.toDataURL()</param>
-    /// <returns>The decoded byte array, or null if the input is null or empty</returns>
-    public static byte[]? MapDataUrlToRequiredBytes(this string dataUrl)
-    {
-        // Remove data URL prefix (e.g., "data:image/png;base64,")
-        var base64Index = dataUrl.IndexOf(',', StringComparison.Ordinal);
-        if (base64Index == -1)
-            throw new ArgumentException("Invalid data URL format. Unable to extract base64 data.", nameof(dataUrl));
-
-        var base64Data = dataUrl[(base64Index + 1)..];
-        return Convert.FromBase64String(base64Data);
-    }
 }

EnvelopeGenerator.Application/Common/Interfaces/Repositories/IDocumentReceiverElementRepository.cs

@@ -6,6 +6,6 @@ namespace EnvelopeGenerator.Application.Common.Interfaces.Repositories;
 /// 
 /// </summary>
 [Obsolete("Use IRepository")]
-public interface IDocumentReceiverElementRepository : ICRUDRepository<DocReceiverElement, int>
+public interface IDocumentReceiverElementRepository : ICRUDRepository<Signature, int>
 {
 }

EnvelopeGenerator.Application/Common/Interfaces/Services/IDocumentReceiverElementService.cs

@@ -8,6 +8,6 @@ namespace EnvelopeGenerator.Application.Common.Interfaces.Services;
 /// 
 /// </summary>
 [Obsolete("Use MediatR")]
-public interface IDocumentReceiverElementService : IBasicCRUDService<DocReceiverElementDto, DocReceiverElement, int>
+public interface IDocumentReceiverElementService : IBasicCRUDService<SignatureDto, Signature, int>
 {
 }

EnvelopeGenerator.Application/Common/Interfaces/Services/IUserPreferencesService.cs

@@ -1,29 +0,0 @@
-using EnvelopeGenerator.Application.Common.Dto;
-
-namespace EnvelopeGenerator.Application.Common.Interfaces.Services;
-
-/// <summary>
-/// Manages per-user UI preferences (theme, dark mode, grid layouts).
-/// Preferences are stored in the distributed cache (dbo.TBDD_CACHE) as JSON.
-/// Cache key schema: "signflow.user-preferences:{username}"
-/// </summary>
-public interface IUserPreferencesService
-{
-    /// <summary>
-    /// Retrieves preferences for the given user.
-    /// Always returns a valid object — never throws, never returns null.
-    /// Returns defaults if no entry exists in cache.
-    /// </summary>
-    /// <param name="id"></param>
-    /// <param name="ct">Cancellation token.</param>
-    Task<UserPreferencesDto> GetOrCreateAsync(string id, CancellationToken ct = default);
-
-    /// <summary>
-    /// Persists the given preferences for the user in the distributed cache.
-    /// Failures are non-fatal and silently ignored.
-    /// </summary>
-    /// <param name="id"></param>
-    /// <param name="preferences">The preferences to persist.</param>
-    /// <param name="ct">Cancellation token.</param>
-    Task SaveAsync(string id, UserPreferencesDto preferences, CancellationToken ct = default);
-}

EnvelopeGenerator.Application/Common/Notifications/DocSigned/DocSignedNotification.cs

@@ -1,37 +1,88 @@
 using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
 using EnvelopeGenerator.Application.Common.Extensions;
+using EnvelopeGenerator.Application.Common.Notifications.RemoveSignature;
 using EnvelopeGenerator.Domain.Constants;
 using MediatR;
+using System.Dynamic;
 
 namespace EnvelopeGenerator.Application.Common.Notifications.DocSigned;
 
 /// <summary>
-/// Notification raised when a document is signed by a receiver.
+/// 
 /// </summary>
-[Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
+/// <param name="Instant"></param>
-public record DocSignedNotification : INotification, ISendMailNotification
+/// <param name="Structured"></param>
+public record PsPdfKitAnnotation(ExpandoObject Instant, IEnumerable<AnnotationCreateDto> Structured);
+
+/// <summary>
+/// 
+/// </summary>
+/// <param name="Original"></param>
+public record DocSignedNotification(EnvelopeReceiverDto Original) : EnvelopeReceiverDto(Original), INotification, ISendMailNotification
 {
     /// <summary>
-    /// The envelope receiver information.
+    /// 
     /// </summary>
-    public required EnvelopeReceiverDto EnvelopeReceiver { get; init; }
-
-    /// <summary>
-    /// The PSPDFKit annotation data.
-    /// </summary>
-    [Obsolete("The PSPDFKit library is deprecated.")]
     public PsPdfKitAnnotation? PsPdfKitAnnotation { get; init; }
 
     /// <summary>
-    /// Gets the email template type.
+    /// 
     /// </summary>
     public EmailTemplateType TemplateType => EmailTemplateType.DocumentSigned;
 
     /// <summary>
-    /// Gets the email address of the receiver.
+    /// 
     /// </summary>
-    public string EmailAddress => EnvelopeReceiver.Receiver?.EmailAddress
+    public string EmailAddress => Receiver?.EmailAddress
         ?? throw new InvalidOperationException($"Receiver is null." +
             $"DocSignedNotification:\n{this.ToJson(Format.Json.ForDiagnostics)}");
 }
+
+/// <summary>
+/// 
+/// </summary>
+public static class DocSignedNotificationExtensions
+{
+    /// <summary>
+    /// Converts an <see cref="EnvelopeReceiverDto"/> to a <see cref="DocSignedNotification"/>.
+    /// </summary>
+    /// <param name="dto">The DTO to convert.</param>
+    /// <param name="psPdfKitAnnotation"></param>
+    /// <returns>A new <see cref="DocSignedNotification"/> instance.</returns>
+    public static DocSignedNotification ToDocSignedNotification(this EnvelopeReceiverDto dto, PsPdfKitAnnotation psPdfKitAnnotation)
+        => new(dto) { PsPdfKitAnnotation = psPdfKitAnnotation };
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="dtoTask"></param>
+    /// <param name="psPdfKitAnnotation"></param>
+    /// <returns></returns>
+    public static async Task<DocSignedNotification?> ToDocSignedNotification(this Task<EnvelopeReceiverDto?> dtoTask, PsPdfKitAnnotation? psPdfKitAnnotation)
+        => await dtoTask is EnvelopeReceiverDto dto ? new(dto) { PsPdfKitAnnotation = psPdfKitAnnotation } : null;
+
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <param name="publisher"></param>
+    /// <param name="notification"></param>
+    /// <param name="cancel"></param>
+    /// <returns></returns>
+    public static async Task PublishSafely(this IPublisher publisher, DocSignedNotification notification, CancellationToken cancel = default)
+    {
+        try
+        {
+            await publisher.Publish(notification, cancel);
+        }
+        catch (Exception)
+        {
+            await publisher.Publish(new RemoveSignatureNotification()
+            {
+                EnvelopeId = notification.EnvelopeId,
+                ReceiverId = notification.ReceiverId
+            }, cancel);
+            throw;
+        }
+    }
+}

EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/AnnotationHandler.cs

@@ -1,6 +1,5 @@
 using DigitalData.Core.Abstraction.Application.Repository;
 using EnvelopeGenerator.Domain.Entities;
-using EnvelopeGenerator.Application.Common.Dto;
 using MediatR;
 
 namespace EnvelopeGenerator.Application.Common.Notifications.DocSigned.Handlers;
@@ -8,7 +7,6 @@ namespace EnvelopeGenerator.Application.Common.Notifications.DocSigned.Handlers;
 /// <summary>
 /// 
 /// </summary>
-[Obsolete("The PSPDFKit library is deprecated.")]
 public class AnnotationHandler : INotificationHandler<DocSignedNotification>
 {
     /// <summary>

EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/DocStatusHandler.cs

@@ -1,5 +1,4 @@
 using EnvelopeGenerator.Application.DocStatus.Commands;
-using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.Domain.Constants;
 using MediatR;
 using System.Text.Json;
@@ -9,7 +8,6 @@ namespace EnvelopeGenerator.Application.Common.Notifications.DocSigned.Handlers;
 /// <summary>
 /// 
 /// </summary>
-[Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
 public class DocStatusHandler : INotificationHandler<DocSignedNotification>
 {
     private const string BlankAnnotationJson = "{}";
@@ -31,11 +29,10 @@ public class DocStatusHandler : INotificationHandler<DocSignedNotification>
     /// <param name="notification"></param>
     /// <param name="cancel"></param>
     /// <returns></returns>
-    [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
     public Task Handle(DocSignedNotification notification, CancellationToken cancel) => _sender.Send(new CreateDocStatusCommand()
     {
-        EnvelopeId = notification.EnvelopeReceiver.EnvelopeId,
+        EnvelopeId = notification.EnvelopeId,
-        ReceiverId = notification.EnvelopeReceiver.ReceiverId,
+        ReceiverId = notification.ReceiverId,
         Value = notification.PsPdfKitAnnotation is PsPdfKitAnnotation annot
                     ? JsonSerializer.Serialize(annot.Instant, Format.Json.ForAnnotations)
                     : BlankAnnotationJson

EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/HistoryHandler.cs

@@ -29,13 +29,13 @@ public class HistoryHandler : INotificationHandler<DocSignedNotification>
     /// <returns></returns>
     public async Task Handle(DocSignedNotification notification, CancellationToken cancel)
     {
-        if (notification.EnvelopeReceiver.Receiver is null)
+        if (notification.Receiver is null)
             throw new InvalidOperationException($"Receiver information is missing in the notification. DocSignedNotification:\n {notification.ToJson(Format.Json.ForDiagnostics)}");
 
         await _sender.Send(new CreateHistoryCommand()
         {
-            EnvelopeId = notification.EnvelopeReceiver.EnvelopeId,
+            EnvelopeId = notification.EnvelopeId,
-            UserReference = notification.EnvelopeReceiver.Receiver.EmailAddress,
+            UserReference = notification.Receiver.EmailAddress,
             Status = EnvelopeStatus.DocumentSigned,
         }, cancel);
     }

EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/SendSignedMailHandler.cs

@@ -31,7 +31,7 @@ public class SendSignedMailHandler : SendMailHandler<DocSignedNotification>
     protected override void ConfigureEmailOut(DocSignedNotification notification, EmailOut emailOut)
     {
         emailOut.ReferenceString = notification.EmailAddress;
-        emailOut.ReferenceId = notification.EnvelopeReceiver.ReceiverId;
+        emailOut.ReferenceId = notification.ReceiverId;
     }
 
     /// <summary>
@@ -42,11 +42,11 @@ public class SendSignedMailHandler : SendMailHandler<DocSignedNotification>
     {
         var placeHolders = new Dictionary<string, string>()
         {
-            { "[NAME_RECEIVER]", notification.EnvelopeReceiver.Name ?? string.Empty },
+            { "[NAME_RECEIVER]", notification.Name ?? string.Empty },
-            { "[DOCUMENT_TITLE]", notification.EnvelopeReceiver.Envelope?.Title ?? string.Empty },
+            { "[DOCUMENT_TITLE]", notification.Envelope?.Title ?? string.Empty },
         };
 
-        if (notification.EnvelopeReceiver.Envelope.IsReadAndConfirm())
+        if (notification.Envelope.IsReadAndConfirm())
         {
             placeHolders["[SIGNATURE_TYPE]"] = "Lesen und bestätigen";
             placeHolders["[DOCUMENT_PROCESS]"] = string.Empty;

EnvelopeGenerator.Application/Common/Notifications/EnvelopeDeleted/EnvelopeDeletedNotification.cs

@@ -1,21 +0,0 @@
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.Common.Notifications.EnvelopeDeleted;
-
-public record EnvelopeDeletedNotification : INotification, ISendMailNotification
-{
-    public required Envelope Envelope { get; init; }
-
-    public required EnvelopeReceiver EnvelopeReceiver { get; init; }
-
-    public required string Reason { get; init; }
-
-    public required string SenderReference { get; init; }
-
-    public EmailTemplateType TemplateType => EmailTemplateType.DocumentDeleted;
-
-    public string EmailAddress => EnvelopeReceiver.Receiver?.EmailAddress
-        ?? throw new InvalidOperationException("Receiver email is missing for EnvelopeDeletedNotification.");
-}

EnvelopeGenerator.Application/Common/Notifications/EnvelopeDeleted/Handlers/SendDeletedMailHandler.cs

@@ -1,42 +0,0 @@
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.EmailProfilerDispatcher.Abstraction.Entities;
-using EnvelopeGenerator.Application.Common.Configurations;
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Domain.Entities;
-using Microsoft.Extensions.Options;
-
-namespace EnvelopeGenerator.Application.Common.Notifications.EnvelopeDeleted.Handlers;
-
-public class SendDeletedMailHandler : SendMailHandler<EnvelopeDeletedNotification>
-{
-    public SendDeletedMailHandler(
-        IRepository<EmailTemplate> tempRepo,
-        IRepository<EmailOut> emailOutRepo,
-        IOptions<MailParams> mailParamsOptions,
-        IOptions<DispatcherParams> dispatcherParamsOptions)
-        : base(tempRepo, emailOutRepo, mailParamsOptions, dispatcherParamsOptions)
-    {
-    }
-
-    protected override void ConfigureEmailOut(EnvelopeDeletedNotification notification, EmailOut emailOut)
-    {
-        emailOut.ReferenceString = notification.EmailAddress;
-        emailOut.ReferenceId = notification.EnvelopeReceiver.ReceiverId;
-        emailOut.WfId = (int)EnvelopeStatus.MessageDeletionSent;
-    }
-
-    protected override Dictionary<string, string> CreatePlaceHolders(EnvelopeDeletedNotification notification)
-    {
-        var senderName = notification.Envelope.User?.Email;
-        if (string.IsNullOrWhiteSpace(senderName))
-            senderName = notification.SenderReference;
-
-        return new Dictionary<string, string>
-        {
-            ["[NAME_RECEIVER]"] = notification.EnvelopeReceiver.Name ?? string.Empty,
-            ["[NAME_SENDER]"] = senderName ?? string.Empty,
-            ["[DOCUMENT_TITLE]"] = notification.Envelope.Title ?? string.Empty,
-            ["[REASON]"] = notification.Reason
-        };
-    }
-}

EnvelopeGenerator.Application/Common/Notifications/SendMailHandler.cs

@@ -113,7 +113,7 @@ public abstract class SendMailHandler<TNotification> : INotificationHandler<TNot
             EmailAddress = notification.EmailAddress,
             EmailBody = temp.Body,
             EmailSubj = temp.Subject,
-            AddedWhen = DateTime.Now,
+            AddedWhen = DateTime.UtcNow,
             AddedWho = DispatcherParams.AddedWho,
             SendingProfile = DispatcherParams.SendingProfile,
             ReminderTypeId = DispatcherParams.ReminderTypeId,

EnvelopeGenerator.Application/Common/Query/ReceiverQueryBase.cs

@@ -1,6 +1,4 @@
-using System.ComponentModel.DataAnnotations.Schema;
+namespace EnvelopeGenerator.Application.Common.Query;
-
-namespace EnvelopeGenerator.Application.Common.Query;
 
 /// <summary>
 /// Stellt eine Abfrage dar, um die Details eines Empfängers zu lesen.
@@ -31,6 +29,5 @@ public record ReceiverQueryBase
     /// <see cref="Id"/>, <see cref="EmailAddress"/>, or <see cref="Signature"/> is not null.
     /// <para>Usage example: The query can be executed only if at least one criterion is specified.</para>
     /// </remarks>
-    [NotMapped]
+    public bool HasAnyCriteria => Id is not null || EmailAddress is not null || Signature is not null;
-    public virtual bool HasAnyCriteria => Id is not null || EmailAddress is not null || Signature is not null;
 }

EnvelopeGenerator.Application/Common/SQL/EnvelopeReceiverAddReadSQL.cs

@@ -13,7 +13,7 @@ public class EnvelopeReceiverAddReadSQL : ISQL<Envelope>
     /// ENV_UID, EMAIL_ADRESS, SALUTATION, PHONE, 
     /// </summary>
     public string Raw => @"
-		DECLARE	@OUT_RECEIVER_ID bigint
+		DECLARE	@OUT_RECEIVER_ID int
 
 		EXEC	[dbo].[PRSIG_API_CREATE_RECEIVER]
 				{0},

EnvelopeGenerator.Application/DependencyInjection.cs

@@ -7,9 +7,6 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using QRCoder;
 using System.Reflection;
-using MediatR;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
 
 namespace EnvelopeGenerator.Application;
 
@@ -51,30 +48,14 @@ public static class DependencyInjection
         services.Configure<TotpSmsParams>(config.GetSection(nameof(TotpSmsParams)));
 
         services.AddHttpClientService<GtxMessagingParams>(config.GetSection(nameof(GtxMessagingParams)));
-        services.TryAddScoped<ISmsSender, GTXSmsSender>();          // Changed: Singleton → Scoped
+        services.TryAddSingleton<ISmsSender, GTXSmsSender>();
-        services.TryAddScoped<IEnvelopeSmsHandler, EnvelopeSmsHandler>(); // Changed: Singleton → Scoped
+        services.TryAddSingleton<IEnvelopeSmsHandler, EnvelopeSmsHandler>();
         services.TryAddSingleton<IAuthenticator, Authenticator>();
         services.TryAddSingleton<QRCodeGenerator>();
 
         services.AddMediatR(cfg =>
         {
             cfg.RegisterServicesFromAssembly(Assembly.GetExecutingAssembly());
-            
-            // Register SignCommand pipeline behaviors in execution order
-            // 0. EnvelopeReceiverResolutionBehavior - Resolves EnvelopeReceiver from query parameters (executes FIRST)
-            cfg.AddBehavior<IPipelineBehavior<SigningCommand, Unit>, EnvelopeReceiverResolutionBehavior>();
-            
-            // 1. AnnotationBehavior - Saves annotations (executes second)
-            cfg.AddBehavior<IPipelineBehavior<SigningCommand, Unit>, AnnotationBehavior>();
-            
-            // 2. DocStatusBehavior - Creates document status (executes third)
-            cfg.AddBehavior<IPipelineBehavior<SigningCommand, Unit>, DocStatusBehavior>();
-
-            // 3. HistoryBehavior - Records history (executes fourth)
-            cfg.AddBehavior<IPipelineBehavior<SigningCommand, Unit>, HistoryBehavior>();
-            
-            // 4. SendSignedMailBehavior - Sends notification email (executes LAST, only if all previous succeed)
-            cfg.AddBehavior<IPipelineBehavior<SigningCommand, Unit>, SendSignedMailBehavior>();
         });
 
         return services;

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/AnnotationBehavior.cs

@@ -1,50 +0,0 @@
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that saves annotations.
-/// Executes first in the signing process.
-/// </summary>
-[Obsolete("The PSPDFKit library is deprecated.")]
-public class AnnotationBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private readonly IRepository<ElementAnnotation> _repo;
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="AnnotationBehavior"/> class.
-    /// </summary>
-    /// <param name="repository"></param>
-    public AnnotationBehavior(IRepository<ElementAnnotation> repository)
-    {
-        _repo = repository;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancel"></param>
-    /// <returns></returns>
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancel)
-    {
-        if(request.ReceiverAppType != ReceiverAppType.LegacyWeb)
-            if(request.PsPdfKitAnnotation is null)
-                return await next(cancel);
-            else
-                throw new BadRequestException("PsPdfKit Annotation are only supported for the legacy web receiver type.");
-
-        if (request.PsPdfKitAnnotation is PsPdfKitAnnotation annot)
-                await _repo.CreateAsync(annot.Structured, cancel);
-            else
-                throw new BadRequestException("Annotation data is missing or invalid.");
-
-            return await next(cancel);
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/DocStatusBehavior.cs

@@ -1,50 +0,0 @@
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.DocStatus.Commands;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Constants;
-using MediatR;
-using System.Text.Json;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that creates document status.
-/// Executes second in the signing process.
-/// </summary>
-public class DocStatusBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private const string BlankAnnotationJson = "{}";
-
-    private readonly ISender _sender;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="sender"></param>
-    public DocStatusBehavior(ISender sender)
-    {
-        _sender = sender;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
-    {
-        await _sender.Send(new CreateDocStatusCommand()
-        {
-            EnvelopeId = request.EnvelopeReceiver.EnvelopeId,
-            ReceiverId = request.EnvelopeReceiver.ReceiverId,
-            Value = request.PsPdfKitAnnotation is PsPdfKitAnnotation annot
-                        ? JsonSerializer.Serialize(annot.Instant, Format.Json.ForAnnotations)
-                        : BlankAnnotationJson
-        }, cancellationToken);
-
-        return await next(cancellationToken);
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/EnvelopeReceiverResolutionBehavior.cs

@@ -1,54 +0,0 @@
-using AutoMapper;
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
-using EnvelopeGenerator.Application.Common.Extensions;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that resolves and validates EnvelopeReceiver.
-/// Executes FIRST in the signing process - before all other behaviors.
-/// If EnvelopeReceiver is not provided, it queries the database using EnvelopeReceiverQueryBase parameters.
-/// </summary>
-public class EnvelopeReceiverResolutionBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private readonly IRepository<EnvelopeReceiver> _erRepo;
-    private readonly IMapper _mapper;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="erRepo"></param>
-    /// <param name="mapper"></param>
-    public EnvelopeReceiverResolutionBehavior(IRepository<EnvelopeReceiver> erRepo, IMapper mapper)
-    {
-        _erRepo = erRepo;
-        _mapper = mapper;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
-    {
-        // If EnvelopeReceiver is not provided, query it from database
-        if (request.EnvelopeReceiver is null)
-        {
-            var er = await _erRepo.Query.Where(request, notnull: true).SingleOrDefaultAsync(cancellationToken)
-                ?? throw new NotFoundException("EnvelopeReceiver not found");
-
-            request.SetEnvelopeReceiver(_mapper.Map<EnvelopeReceiverDto>(er));
-        }
-
-        return await next(cancellationToken);
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/HistoryBehavior.cs

@@ -1,47 +0,0 @@
-using EnvelopeGenerator.Application.Common.Extensions;
-using EnvelopeGenerator.Application.Histories.Commands;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Constants;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that records history.
-/// Executes third in the signing process.
-/// </summary>
-public class HistoryBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private readonly ISender _sender;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="sender"></param>
-    public HistoryBehavior(ISender sender)
-    {
-        _sender = sender;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
-    {
-        if (request.EnvelopeReceiver.Receiver is null)
-            throw new InvalidOperationException($"Receiver information is missing in the notification. SignCommand:\n {request.ToJson(Format.Json.ForDiagnostics)}");
-
-        await _sender.Send(new CreateHistoryCommand()
-        {
-            EnvelopeId = request.EnvelopeReceiver.EnvelopeId,
-            UserReference = request.EnvelopeReceiver.Receiver.EmailAddress,
-            Status = EnvelopeStatus.DocumentSigned,
-        }, cancellationToken);
-
-        return await next(cancellationToken);
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/SaveSignatureBehavior.cs

@@ -1,70 +0,0 @@
-using AutoMapper;
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that creates document status.
-/// Executes second in the signing process.
-/// </summary>
-public class SaveSignatureBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private readonly ISender _sender;
-
-    private readonly IRepository<DocReceiverElement> _elementRepo;
-
-    private readonly IMapper _mapper;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="sender"></param>
-    /// <param name="elementRepo"></param>
-    /// <param name="mapper"></param>
-    public SaveSignatureBehavior(ISender sender, IRepository<DocReceiverElement> elementRepo, IMapper mapper)
-    {
-        _sender = sender;
-        _elementRepo = elementRepo;
-        _elementRepo = elementRepo;
-        _mapper = mapper;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancel"></param>
-    /// <returns></returns>
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancel)
-    {
-        if (request.ReceiverAppType == ReceiverAppType.LegacyWeb)
-            return await next(cancel);
-        else if(request.Signatures is not IEnumerable<Signature> signatures)
-            throw new BadRequestException($"Signatures are required for saving signature behavior.");
-
-        var elements = await _elementRepo
-            .Where(e => e.Document.EnvelopeId == request.Envelope.Id)
-            .Where(e => e.ReceiverId == request.Receiver.Id)
-            .ToListAsync(cancel);
-
-        foreach (var element in elements)
-        {
-            var signatures = request.Signatures.Where(s => s.Id == element.Id).ToList();
-            if(signatures.Count == 0)
-                throw new BadRequestException("No signature found for element with id {element.Id}.");
-            else if(signatures.Count > 1)
-                throw new BadRequestException("Multiple signatures found for element with id {element.Id}.");
-            
-            await _elementRepo.UpdateAsync(signatures.First(), e => e.Id == element.Id, cancel);
-        }
-
-        return await next(cancel);
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Behaviors/SendSignedMailBehavior.cs

@@ -1,122 +0,0 @@
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.EmailProfilerDispatcher.Abstraction.Entities;
-using EnvelopeGenerator.Application.Common.Configurations;
-using EnvelopeGenerator.Application.Common.Extensions;
-using EnvelopeGenerator.Application.DocReceiverElements.Commands;
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Domain.Entities;
-using EnvelopeGenerator.Domain.Interfaces;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Options;
-using Newtonsoft.Json;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Behaviors;
-
-/// <summary>
-/// Pipeline behavior that sends signed mail notification.
-/// Executes LAST in the signing process - only if all previous behaviors succeed.
-/// </summary>
-public class SendSignedMailBehavior : IPipelineBehavior<SigningCommand, Unit>
-{
-    private readonly IRepository<EmailTemplate> _tempRepo;
-    private readonly IRepository<EmailOut> _emailOutRepo;
-    private readonly MailParams _mailParams;
-    private readonly DispatcherParams _dispatcherParams;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="tempRepo"></param>
-    /// <param name="emailOutRepo"></param>
-    /// <param name="mailParamsOptions"></param>
-    /// <param name="dispatcherParamsOptions"></param>
-    public SendSignedMailBehavior(
-        IRepository<EmailTemplate> tempRepo,
-        IRepository<EmailOut> emailOutRepo,
-        IOptions<MailParams> mailParamsOptions,
-        IOptions<DispatcherParams> dispatcherParamsOptions)
-    {
-        _tempRepo = tempRepo;
-        _emailOutRepo = emailOutRepo;
-        _mailParams = mailParamsOptions.Value;
-        _dispatcherParams = dispatcherParamsOptions.Value;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="next"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    public async Task<Unit> Handle(SigningCommand request, RequestHandlerDelegate<Unit> next, CancellationToken cancellationToken)
-    {
-        var placeHolders = CreatePlaceHolders(request);
-
-        var temp = await _tempRepo
-            .Where(x => x.Name == EmailTemplateType.DocumentSigned.ToString())
-            .SingleOrDefaultAsync(cancellationToken)
-                ?? throw new InvalidOperationException($"Email template not found. SignCommand:\n {request.ToJson(Format.Json.ForDiagnostics)}");
-
-        temp.Subject = ReplacePlaceHolders(temp.Subject, placeHolders, _mailParams.Placeholders);
-        temp.Body = ReplacePlaceHolders(temp.Body, placeHolders, _mailParams.Placeholders);
-
-        var emailOut = new EmailOut
-        {
-            EmailAddress = request.EnvelopeReceiver.Receiver!.EmailAddress,
-            EmailBody = temp.Body,
-            EmailSubj = temp.Subject,
-            AddedWhen = DateTime.Now,
-            AddedWho = _dispatcherParams.AddedWho,
-            SendingProfile = _dispatcherParams.SendingProfile,
-            ReminderTypeId = _dispatcherParams.ReminderTypeId,
-            EmailAttmt1 = _dispatcherParams.EmailAttmt1,
-            WfId = (int)EnvelopeStatus.MessageConfirmationSent,
-            ReferenceString = request.EnvelopeReceiver.Receiver!.EmailAddress,
-            ReferenceId = request.EnvelopeReceiver.ReceiverId
-        };
-
-        await _emailOutRepo.CreateAsync(emailOut, cancellationToken);
-
-        return await next(cancellationToken);
-    }
-
-    private Dictionary<string, string> CreatePlaceHolders(SigningCommand request)
-    {
-        var placeHolders = new Dictionary<string, string>()
-        {
-            { "[NAME_RECEIVER]", request.EnvelopeReceiver.Name ?? string.Empty },
-            { "[DOCUMENT_TITLE]", request.EnvelopeReceiver.Envelope?.Title ?? string.Empty },
-        };
-
-        if (request.EnvelopeReceiver.Envelope.IsReadAndConfirm())
-        {
-            placeHolders["[SIGNATURE_TYPE]"] = "Lesen und bestätigen";
-            placeHolders["[DOCUMENT_PROCESS]"] = string.Empty;
-            placeHolders["[FINAL_STATUS]"] = "Lesebestätigung";
-            placeHolders["[FINAL_ACTION]"] = "Empfänger bestätigt";
-            placeHolders["[REJECTED_BY_OTHERS]"] = "anderen Empfänger abgelehnt!";
-            placeHolders["[RECEIVER_ACTION]"] = "bestätigt";
-        }
-        else
-        {
-            placeHolders["[SIGNATURE_TYPE]"] = "Signieren";
-            placeHolders["[DOCUMENT_PROCESS]"] = " und elektronisch unterschreiben";
-            placeHolders["[FINAL_STATUS]"] = "Signatur";
-            placeHolders["[FINAL_ACTION]"] = "Vertragspartner unterzeichnet";
-            placeHolders["[REJECTED_BY_OTHERS]"] = "anderen Vertragspartner abgelehnt! Ihre notwendige Unterzeichnung wurde verworfen.";
-            placeHolders["[RECEIVER_ACTION]"] = "unterschrieben";
-        }
-
-        return placeHolders;
-    }
-
-    private static string ReplacePlaceHolders(string text, params Dictionary<string, string>[] placeHoldersList)
-    {
-        foreach (var placeHolders in placeHoldersList)
-            foreach (var ph in placeHolders)
-                text = text.Replace(ph.Key, ph.Value);
-        return text;
-    }
-}

EnvelopeGenerator.Application/DocReceiverElements/Commands/SigningCommand.cs

@@ -1,78 +0,0 @@
-using MediatR;
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
-using EnvelopeGenerator.Application.Common.Query;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Commands;
-
-/// <summary>
-/// Command to sign a document by a receiver.
-/// </summary>
-public record SigningCommand : EnvelopeReceiverQueryBase, IRequest
-{
-    private EnvelopeReceiverDto? _envelopeReceiver;
-
-    internal void SetEnvelopeReceiver(EnvelopeReceiverDto envelopeReceiver)
-    {
-        _envelopeReceiver = envelopeReceiver;
-    }
-
-    /// <summary>
-    /// The envelope receiver information.
-    /// </summary>
-    public EnvelopeReceiverDto EnvelopeReceiver
-    { 
-        get => _envelopeReceiver!;
-        init => _envelopeReceiver = value;
-    }
-
-    /// <summary>
-    /// The PSPDFKit annotation data.
-    /// </summary>
-    [Obsolete("This notification is deprecated. Use Signature.Commands.SignCommand instead.")]
-    public PsPdfKitAnnotation? PsPdfKitAnnotation { get; init; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public IEnumerable<Signature>? Signatures { get; init; }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    public ReceiverAppType ReceiverAppType { get; init; } = ReceiverAppType.ReceiverUI;
-}
-
-/// <summary>
-/// Handles the sign command. All work is done by pipeline behaviors.
-/// This handler is intentionally empty - behaviors handle all the processing.
-/// </summary>
-public class SignCommandHandler : IRequestHandler<SigningCommand>
-{
-    /// <summary>
-    /// Executes the signing command. Pipeline behaviors handle all processing.
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    public Task Handle(SigningCommand request, CancellationToken cancellationToken = default)
-    {
-        return Task.CompletedTask;
-    }
-}
-
-/// <summary>
-/// 
-/// </summary>
-public enum ReceiverAppType
-{
-    /// <summary>
-    /// 
-    /// </summary>
-    ReceiverUI = 0,
-
-    /// <summary>
-    /// 
-    /// </summary>
-    LegacyWeb = 1,
-}

EnvelopeGenerator.Application/DocReceiverElements/Queries/ReadDocReceiverElementQuery.cs

@@ -1,66 +0,0 @@
-using AutoMapper;
-using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.Common.Query;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-using EnvelopeGenerator.Application.Common.Extensions;
-using DigitalData.Core.Abstraction.Application.Repository;
-using Microsoft.EntityFrameworkCore;
-
-namespace EnvelopeGenerator.Application.DocReceiverElements.Queries;
-
-/// <summary>
-/// 
-/// </summary>
-public record ReadDocReceiverElementQuery : EnvelopeReceiverQueryBase, IRequest<IEnumerable<DocReceiverElementDto>>
-{
-}
-
-/// <summary>
-/// 
-/// </summary>
-public class ReadDocReceiverElementQueryHandler : IRequestHandler<ReadDocReceiverElementQuery, IEnumerable<DocReceiverElementDto>>
-{
-    private readonly IRepository<DocReceiverElement> _repository;
-
-    private readonly IMapper _mapper;
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="repository"></param>
-    /// <param name="mapper"></param>
-    public ReadDocReceiverElementQueryHandler(IRepository<DocReceiverElement> repository, IMapper mapper)
-    {
-        _repository = repository;
-        _mapper = mapper;
-    }
-
-    /// <summary>
-    /// 
-    /// </summary>
-    /// <param name="request"></param>
-    /// <param name="cancellationToken"></param>
-    /// <returns></returns>
-    /// <exception cref="NotImplementedException"></exception>
-    public async Task<IEnumerable<DocReceiverElementDto>> Handle(ReadDocReceiverElementQuery request, CancellationToken cancellationToken)
-    {
-        var q = _repository.Query;
-
-        if(request.Envelope.Id is int envelopeId)
-            q = q.Where(e => e.Document.EnvelopeId == envelopeId);
-
-        if (request.Envelope.Uuid is string envelopeUuid)
-            q = q.Where(e => e.Document.Envelope.Uuid == envelopeUuid);
-
-        if (request.Receiver.Id is int receiverId)
-            q = q.Where(e => e.ReceiverId == receiverId);
-
-        if (request.Receiver.Signature is string signature)
-            q = q.Where(e => e.Receiver.Signature == signature);
-
-        var elements = await q.ToListAsync(cancellationToken);
-
-        return _mapper.Map<IEnumerable<DocReceiverElementDto>>(elements);
-    }
-}

EnvelopeGenerator.Application/DocStatus/MappingProfile.cs

@@ -27,7 +27,7 @@ public class MappingProfile : Profile
         CreateMap<UpdateDocStatusCommand, DocumentStatus>()
         .ForMember(dest => dest.Envelope, opt => opt.Ignore())
         .ForMember(dest => dest.Receiver, opt => opt.Ignore())
-        .ForMember(dest => dest.StatusChangedWhen, opt => opt.MapFrom(src => DateTime.Now))
+        .ForMember(dest => dest.StatusChangedWhen, opt => opt.MapFrom(src => DateTime.UtcNow))
         .MapChangedWhen();
     }
 }

EnvelopeGenerator.Application/Documents/Queries/ReadDocumentQuery.cs

@@ -13,8 +13,7 @@ namespace EnvelopeGenerator.Application.Documents.Queries;
 /// </summary>
 /// <param name="Id">The unique identifier of the document. Optional.</param>
 /// <param name="EnvelopeId">The identifier of the envelope associated with the document. Optional.</param>
-/// <param name="UserId">The unique identifier of the sending user. Optional.</param>
+public record ReadDocumentQuery(int? Id = null, int? EnvelopeId = null) : IRequest<DocumentDto>
-public record ReadDocumentQuery(int? Id = null, int? EnvelopeId = null, int? UserId = null) : IRequest<DocumentDto>
 {
 }
 
@@ -54,20 +53,14 @@ public class ReadDocumentQueryHandler : IRequestHandler<ReadDocumentQuery, Docum
     /// </exception>
     public async Task<DocumentDto> Handle(ReadDocumentQuery query, CancellationToken cancel)
     {
-        var docQuery = _repo.Query.Include(doc => doc.Elements).ThenInclude(e => e.Annotations).AsNoTracking();
-
-        if (query.UserId is int userId)
-            docQuery = docQuery.Where(doc => doc.Envelope.UserId == userId);
-
         if (query.Id is not null)
         {
-            var doc = await docQuery.Where(d => d.Id == query.Id).FirstOrDefaultAsync(cancel);
+            var doc = await _repo.Query.Where(d => d.Id == query.Id).FirstOrDefaultAsync(cancel);
-            
             return _mapper.Map<DocumentDto>(doc);
         }            
         else if (query.EnvelopeId is not null)
         {
-            var doc = await docQuery.Where(d => d.EnvelopeId == query.EnvelopeId).FirstOrDefaultAsync(cancel);
+            var doc = await _repo.Query.Where(d => d.EnvelopeId == query.EnvelopeId).FirstOrDefaultAsync(cancel);
             return _mapper.Map<DocumentDto>(doc);
         }
 

EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj

@@ -21,6 +21,7 @@
 		<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" />
@@ -78,25 +79,25 @@
 	</ItemGroup>
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net7.0'">
-		<PackageReference Include="AutoMapper" Version="13.0.1" />
+	  <PackageReference Include="AutoMapper" Version="13.0.1" />
-		<PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.2" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.2" />
-		<PackageReference Include="CommandDotNet">
+	  <PackageReference Include="CommandDotNet">
 		<Version>7.0.5</Version>
-		</PackageReference>
+	  </PackageReference>
 	</ItemGroup>
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
-		<PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="AutoMapper" Version="14.0.0" />
-		<PackageReference Include="CommandDotNet">
+	  <PackageReference Include="CommandDotNet">
-		<Version>8.1.1</Version>
+	    <Version>8.1.1</Version>
-		</PackageReference>
+	  </PackageReference>
 	</ItemGroup>
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
-		<PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="AutoMapper" Version="14.0.0" />
-		<PackageReference Include="CommandDotNet">
+	  <PackageReference Include="CommandDotNet">
-		<Version>8.1.1</Version>
+	    <Version>8.1.1</Version>
-		</PackageReference>
+	  </PackageReference>
 	</ItemGroup>
 
 </Project>

EnvelopeGenerator.Application/EnvelopeReceivers/Commands/CreateEnvelopeReceiverCommand.cs

@@ -29,7 +29,7 @@ public record CreateEnvelopeReceiverCommand : CreateEnvelopeCommand, IRequest<Cr
 /// <param name="X">X-Position</param>
 /// <param name="Y">Y-Position</param>
 /// <param name="Page">Seite, auf der sie sich befindet</param>
-public record DocReceiverElementCreateDto([Required] double X, [Required] double Y, [Required] int Page);
+public record Signature([Required] double X, [Required] double Y, [Required] int Page);
 
 /// <summary>
 /// DTO für Empfänger, die erstellt oder abgerufen werden sollen.
@@ -41,7 +41,7 @@ public class ReceiverGetOrCreateCommand
     /// Unterschriften auf Dokumenten.
     /// </summary>
     [Required]
-    public List<DocReceiverElementCreateDto> DocReceiverElements { get; init; } = new();
+    public List<Signature> Signatures { get; init; } = new();
 
     /// <summary>
     /// Der Name, mit dem der Empfänger angesprochen werden soll.

EnvelopeGenerator.Application/EnvelopeReceivers/Queries/ReadEnvelopeReceiverSecretQuery.cs

@@ -1,127 +0,0 @@
-using AutoMapper;
-using DigitalData.Core.Abstraction.Application.Repository;
-using EnvelopeGenerator.Application.Envelopes.Queries;
-using EnvelopeGenerator.Application.Receivers.Queries;
-using MediatR;
-using EnvelopeGenerator.Domain.Entities;
-using Microsoft.EntityFrameworkCore;
-using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiver;
-using EnvelopeGenerator.Application.Common.Query;
-using EnvelopeGenerator.Application.Common.Extensions;
-
-namespace EnvelopeGenerator.Application.EnvelopeReceivers.Queries;
-
-/// <summary>
-/// Represents a query for reading an envelope receiver including sensitive fields
-/// (access code, phone number) that are excluded from the standard <see cref="ReadEnvelopeReceiverQuery"/>.
-/// </summary>
-/// <remarks>
-/// Returns a single <see cref="EnvelopeReceiverSecretDto"/> matched by UUID and receiver signature.
-/// Equivalent to the legacy <c>ReadWithSecretByUuidSignatureAsync</c> service method.
-/// </remarks>
-public record ReadEnvelopeReceiverSecretQuery
-    : EnvelopeReceiverQueryBase<ReadEnvelopeQuery, ReadReceiverQuery>,
-      IRequest<EnvelopeReceiverSecretDto?>;
-
-/// <summary>
-/// Extension methods for dispatching <see cref="ReadEnvelopeReceiverSecretQuery"/> via <see cref="IMediator"/>.
-/// </summary>
-public static class ReadEnvelopeReceiverSecretQueryExtensions
-{
-    /// <summary>
-    /// Sends a <see cref="ReadEnvelopeReceiverSecretQuery"/> using the composite key (uuid::signature).
-    /// </summary>
-    /// <param name="mediator">The mediator instance.</param>
-    /// <param name="key">Composite key in the format <c>uuid::signature</c>.</param>
-    /// <param name="cancel">Cancellation token.</param>
-    /// <returns>The matching <see cref="EnvelopeReceiverSecretDto"/>, or <c>null</c> if not found.</returns>
-    public static Task<EnvelopeReceiverSecretDto?> ReadEnvelopeReceiverSecretAsync(
-        this IMediator mediator,
-        string key,
-        CancellationToken cancel = default)
-        => mediator.Send(new ReadEnvelopeReceiverSecretQuery { Key = key }, cancel);
-
-    /// <summary>
-    /// Sends a <see cref="ReadEnvelopeReceiverSecretQuery"/> using UUID and receiver signature.
-    /// </summary>
-    /// <param name="mediator">The mediator instance.</param>
-    /// <param name="uuid">Envelope UUID.</param>
-    /// <param name="signature">Receiver signature.</param>
-    /// <param name="cancel">Cancellation token.</param>
-    /// <returns>The matching <see cref="EnvelopeReceiverSecretDto"/>, or <c>null</c> if not found.</returns>
-    public static Task<EnvelopeReceiverSecretDto?> ReadEnvelopeReceiverSecretAsync(
-        this IMediator mediator,
-        string uuid,
-        string signature,
-        CancellationToken cancel = default)
-    {
-        var q = new ReadEnvelopeReceiverSecretQuery();
-        q.Envelope.Uuid = uuid;
-        q.Receiver.Signature = signature;
-        return mediator.Send(q, cancel);
-    }
-
-    /// <summary>
-    /// Handles <see cref="ReadEnvelopeReceiverSecretQuery"/> and returns a
-    /// <see cref="EnvelopeReceiverSecretDto"/> containing sensitive fields.
-    /// </summary>
-    public class ReadEnvelopeReceiverSecretQueryHandler
-        : IRequestHandler<ReadEnvelopeReceiverSecretQuery, EnvelopeReceiverSecretDto?>
-    {
-        private readonly IRepository<EnvelopeReceiver> _repo;
-        private readonly IRepository<Receiver> _rcvRepo;
-        private readonly IMapper _mapper;
-
-        /// <summary>
-        /// Initializes a new instance of <see cref="ReadEnvelopeReceiverSecretQueryHandler"/>.
-        /// </summary>
-        /// <param name="envelopeReceiver">Repository for <see cref="EnvelopeReceiver"/>.</param>
-        /// <param name="rcvRepo">Repository for <see cref="Receiver"/>.</param>
-        /// <param name="mapper">AutoMapper instance.</param>
-        public ReadEnvelopeReceiverSecretQueryHandler(
-            IRepository<EnvelopeReceiver> envelopeReceiver,
-            IRepository<Receiver> rcvRepo,
-            IMapper mapper)
-        {
-            _repo = envelopeReceiver;
-            _rcvRepo = rcvRepo;
-            _mapper = mapper;
-        }
-
-        /// <summary>
-        /// Handles the query and returns the matching <see cref="EnvelopeReceiverSecretDto"/>.
-        /// </summary>
-        /// <param name="request">The query containing filter criteria.</param>
-        /// <param name="cancel">Cancellation token.</param>
-        /// <returns>
-        /// The matched <see cref="EnvelopeReceiverSecretDto"/>, or <c>null</c> if no record is found.
-        /// </returns>
-        public async Task<EnvelopeReceiverSecretDto?> Handle(
-            ReadEnvelopeReceiverSecretQuery request,
-            CancellationToken cancel)
-        {
-            var q = _repo.Query.Where(request, notnull: false);
-
-            var envRcvs = await q
-                .Include(er => er.Envelope).ThenInclude(e => e!.Documents!).ThenInclude(d => d.Elements)
-                .Include(er => er.Envelope).ThenInclude(e => e!.Histories)
-                .Include(er => er.Envelope).ThenInclude(e => e!.User)
-                .Include(er => er.Receiver)
-                .ToListAsync(cancel);
-
-            if (request.Receiver.HasAnyCriteria && envRcvs.Count != 0)
-            {
-                var receiver = await _rcvRepo.Query.Where(request.Receiver).FirstAsync(cancel);
-
-                foreach (var item in envRcvs)
-                    item.Envelope?.Documents?.FirstOrDefault()?.Elements?.RemoveAll(s => s.ReceiverId != receiver.Id);
-            }
-
-            var envRcv = envRcvs.FirstOrDefault();
-            if (envRcv is null)
-                return null;
-
-            return _mapper.Map<EnvelopeReceiverSecretDto>(envRcv);
-        }
-    }
-}

EnvelopeGenerator.Application/Envelopes/Commands/CreateEnvelopeCommand.cs

@@ -1,4 +1,5 @@
-using EnvelopeGenerator.Application.Common.Dto;
+using DigitalData.Core.Abstraction.Application.Repository;
+using EnvelopeGenerator.Application.Common.Dto;
 using EnvelopeGenerator.Application.Common.Interfaces.SQLExecutor;
 using MediatR;
 using System.ComponentModel.DataAnnotations;
@@ -12,29 +13,23 @@ namespace EnvelopeGenerator.Application.Envelopes.Commands;
 /// </summary>
 public record CreateEnvelopeCommand : IRequest<EnvelopeDto?>
 {
-    public int? EnvelopeId { get; init; }
-
     /// <summary>
     /// Der Titel des Umschlags. Dies ist ein Pflichtfeld.
     /// </summary>
-    public string? Title { get; set; }
+    [Required]
+    public required string Title { get; set; }
 
     /// <summary>
     /// Die Nachricht, die im Umschlag enthalten sein soll. Dies ist ein Pflichtfeld.
     /// </summary>
-    public string? Message { get; set; }
+    [Required]
+    public required string Message { get; set; }
 
     /// <summary>
     /// Gibt an, ob die Zwei-Faktor-Authentifizierung für den Umschlag aktiviert ist. Standardmäßig false.
     /// </summary>
     public bool TFAEnabled { get; set; } = false;
 
-    public bool Send { get; init; }
-
-    public CreateEnvelopeDocumentDto? Document { get; init; }
-
-    public List<CreateEnvelopeReceiverDto> Receivers { get; init; } = new();
-
     /// <summary>
     /// ID des Absenders
     /// </summary>
@@ -45,10 +40,10 @@ public record CreateEnvelopeCommand : IRequest<EnvelopeDto?>
     /// </summary>
     /// <param name="userId"></param>
     /// <returns></returns>
-    public CreateEnvelopeCommand WithAuth(int userId)
+    public bool Authorize(int userId)
     {
         UserId = userId;
-        return this;
+        return true;
     }
 
     /// <summary>
@@ -61,13 +56,3 @@ public record CreateEnvelopeCommand : IRequest<EnvelopeDto?>
     [NotMapped]
     public bool UseSQLExecutor { get; set; } = true;
 }
-
-public record CreateEnvelopeDocumentDto(string DataAsBase64);
-
-public record CreateEnvelopeFieldDto(double X, double Y, int Page);
-
-public record CreateEnvelopeReceiverDto(
-    string EmailAddress,
-    string? Name,
-    string? PhoneNumber,
-    List<CreateEnvelopeFieldDto> Fields);

EnvelopeGenerator.Application/Envelopes/Commands/CreateEnvelopeCommandHandler.cs

@@ -1,20 +1,10 @@
 using AutoMapper;
 using MediatR;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Options;
 using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.EmailProfilerDispatcher.Abstraction.Entities;
-using DigitalData.Core.Exceptions;
 using EnvelopeGenerator.Domain.Entities;
 using EnvelopeGenerator.Application.Common.Dto;
-using EnvelopeGenerator.Application.Common.Configurations;
-using EnvelopeGenerator.Application.Common.Extensions;
-using EnvelopeGenerator.Application.Common.Interfaces.Services;
 using EnvelopeGenerator.Application.Common.Interfaces.SQLExecutor;
-using EnvelopeGenerator.Application.Histories.Commands;
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Domain;
-using Microsoft.EntityFrameworkCore;
 
 namespace EnvelopeGenerator.Application.Envelopes.Commands;
 
@@ -29,26 +19,6 @@ public class CreateEnvelopeCommandHandler : IRequestHandler<CreateEnvelopeComman
 
     private IRepository<Envelope> Repository => _provider.GetRequiredService<IRepository<Envelope>>();
 
-    private IRepository<Document> DocumentRepository => _provider.GetRequiredService<IRepository<Document>>();
-
-    private IRepository<EnvelopeReceiver> EnvelopeReceiverRepository => _provider.GetRequiredService<IRepository<EnvelopeReceiver>>();
-
-    private IRepository<Receiver> ReceiverRepository => _provider.GetRequiredService<IRepository<Receiver>>();
-
-    private IRepository<DocReceiverElement> DocReceiverElementRepository => _provider.GetRequiredService<IRepository<DocReceiverElement>>();
-
-    private IRepository<EmailTemplate> EmailTemplateRepository => _provider.GetRequiredService<IRepository<EmailTemplate>>();
-
-    private IRepository<EmailOut> EmailOutRepository => _provider.GetRequiredService<IRepository<EmailOut>>();
-
-    private MailParams MailParams => _provider.GetRequiredService<IOptions<MailParams>>().Value;
-
-    private DispatcherParams DispatcherParams => _provider.GetRequiredService<IOptions<DispatcherParams>>().Value;
-
-    private IConfigService ConfigService => _provider.GetRequiredService<IConfigService>();
-
-    private IMediator Mediator => _provider.GetRequiredService<IMediator>();
-
     private readonly IMapper _mapper;
 
     /// <summary>
@@ -70,385 +40,10 @@ public class CreateEnvelopeCommandHandler : IRequestHandler<CreateEnvelopeComman
     /// <returns></returns>
     public async Task<EnvelopeDto?> Handle(CreateEnvelopeCommand request, CancellationToken cancel)
     {
-        var now = DateTime.Now;
+        var envelope = request.UseSQLExecutor
-        var title = request.Title?.Trim() ?? string.Empty;
+            ? await Executor.CreateEnvelopeAsync(request.UserId, request.Title, request.Message, request.TFAEnabled, cancel)
-        var message = request.Message?.Trim() ?? string.Empty;
+            : await Repository.CreateAsync(request, cancel);
-
-        Envelope envelope;
-        if (request.EnvelopeId is int envelopeId)
-        {
-            envelope = await Repository.Query
-                .Include(e => e.User)
-                .FirstOrDefaultAsync(e => e.Id == envelopeId, cancel)
-                ?? throw new BadRequestException($"Envelope {envelopeId} not found.");
-
-            if (envelope.UserId != request.UserId)
-                throw new ForbiddenException();
-
-            await Repository.UpdateAsync(e =>
-            {
-                e.Title = title;
-                e.Message = message;
-                e.TfaEnabled = request.TFAEnabled;
-                e.Status = EnvelopeStatus.EnvelopeSaved;
-                e.ChangedWhen = now;
-            }, e => e.Id == envelopeId, cancel);
-
-            envelope.Title = title;
-            envelope.Message = message;
-            envelope.TfaEnabled = request.TFAEnabled;
-            envelope.Status = EnvelopeStatus.EnvelopeSaved;
-            envelope.ChangedWhen = now;
-        }
-        else
-        {
-            envelope = request.UseSQLExecutor
-                ? await Executor.CreateEnvelopeAsync(request.UserId, title, message, request.TFAEnabled, cancel)
-                : await Repository.CreateAsync(new Envelope
-                {
-                    UserId = request.UserId,
-                    Status = EnvelopeStatus.EnvelopeCreated,
-                    Uuid = Guid.NewGuid().ToString(),
-                    Title = title,
-                    Message = message,
-                    AddedWhen = now,
-                    ChangedWhen = now,
-                    Comment = string.Empty,
-                    Language = "de-DE",
-                    TfaEnabled = request.TFAEnabled,
-                    UseAccessCode = false,
-                    SendReminderEmails = false
-                }, cancel);
-
-            await Mediator.Send(new CreateHistoryCommand
-            {
-                EnvelopeId = envelope.Id,
-                UserReference = await ResolveSenderReferenceAsync(envelope, cancel),
-                Status = EnvelopeStatus.EnvelopeCreated
-            }, cancel);
-        }
-
-        await UpsertDocumentAsync(envelope.Id, request.Document, now, cancel);
-        await UpsertReceiversAndFieldsAsync(envelope.Id, request.Receivers, now, cancel);
-
-        if (request.Send)
-            await SendEnvelopeAsync(envelope, cancel);
-
-        envelope = await Repository.Query
-            .Include(e => e.User)
-            .Include(e => e.EnvelopeReceivers)
-                .ThenInclude(er => er.Receiver)
-            .FirstAsync(e => e.Id == envelope.Id, cancel);
 
         return _mapper.Map<EnvelopeDto>(envelope);
     }
-
-    private async Task<string> ResolveSenderReferenceAsync(Envelope envelope, CancellationToken cancel)
-    {
-        if (!string.IsNullOrWhiteSpace(envelope.User?.Email))
-            return envelope.User.Email;
-
-        var senderEmail = await Repository.Query
-            .Where(e => e.Id == envelope.Id)
-            .Select(e => e.User.Email)
-            .FirstOrDefaultAsync(cancel);
-
-        if (string.IsNullOrWhiteSpace(senderEmail))
-            throw new BadRequestException("Envelope sender email is missing.");
-
-        return senderEmail;
-    }
-
-    private async Task UpsertDocumentAsync(int envelopeId, CreateEnvelopeDocumentDto? document, DateTime now, CancellationToken cancel)
-    {
-        if (document is null || string.IsNullOrWhiteSpace(document.DataAsBase64))
-            return;
-
-        byte[] bytes;
-        try
-        {
-            bytes = Convert.FromBase64String(document.DataAsBase64);
-        }
-        catch (FormatException)
-        {
-            throw new BadRequestException("Document payload is not valid base64.");
-        }
-
-        var existingDocumentId = await DocumentRepository.Query
-            .Where(d => d.EnvelopeId == envelopeId)
-            .Select(d => (int?)d.Id)
-            .FirstOrDefaultAsync(cancel);
-
-        if (existingDocumentId is null)
-        {
-            await DocumentRepository.CreateAsync(new Document
-            {
-                EnvelopeId = envelopeId,
-                AddedWhen = now,
-                ByteData = bytes,
-                Filename = string.Empty,
-                Filepath = string.Empty,
-                FileNameOriginal = string.Empty
-            }, cancel);
-
-            return;
-        }
-
-        await DocumentRepository.UpdateAsync(d =>
-        {
-            d.ByteData = bytes;
-        }, d => d.Id == existingDocumentId.Value, cancel);
-    }
-
-    private async Task UpsertReceiversAndFieldsAsync(int envelopeId, IReadOnlyCollection<CreateEnvelopeReceiverDto> receivers, DateTime now, CancellationToken cancel)
-    {
-        var filteredReceivers = receivers
-            .Where(r => !string.IsNullOrWhiteSpace(r.EmailAddress))
-            .Select(r => r with
-            {
-                EmailAddress = r.EmailAddress.Trim().ToLowerInvariant(),
-                Name = r.Name?.Trim(),
-                PhoneNumber = string.IsNullOrWhiteSpace(r.PhoneNumber) ? null : r.PhoneNumber.Trim(),
-                Fields = r.Fields ?? new List<CreateEnvelopeFieldDto>()
-            })
-            .GroupBy(r => r.EmailAddress, StringComparer.OrdinalIgnoreCase)
-            .Select(g => g.First())
-            .ToList();
-
-        if (filteredReceivers.Count == 0)
-            return;
-
-        var document = await DocumentRepository.Query
-            .FirstOrDefaultAsync(d => d.EnvelopeId == envelopeId, cancel);
-
-        if (document is null)
-            return;
-
-        var currentLinks = await EnvelopeReceiverRepository.Query
-            .Include(er => er.Receiver)
-            .Where(er => er.EnvelopeId == envelopeId)
-            .ToListAsync(cancel);
-
-        var linksByEmail = currentLinks
-            .Where(er => !string.IsNullOrWhiteSpace(er.Receiver?.EmailAddress))
-            .GroupBy(er => er.Receiver!.EmailAddress, StringComparer.OrdinalIgnoreCase)
-            .ToDictionary(g => g.Key.ToLowerInvariant(), g => g.First(), StringComparer.OrdinalIgnoreCase);
-
-        var sequence = currentLinks.Count > 0 ? currentLinks.Max(er => er.Sequence) : 0;
-
-        foreach (var receiverDraft in filteredReceivers)
-        {
-            var linkResult = await GetOrCreateEnvelopeReceiverAsync(envelopeId, receiverDraft, linksByEmail, now, sequence, cancel);
-            var link = linkResult.Link;
-            sequence = linkResult.NextSequence;
-
-            await DocReceiverElementRepository.DeleteAsync(query => query
-                .Where(e => e.DocumentId == document.Id)
-                .Where(e => e.ReceiverId == link.ReceiverId), cancel);
-
-            foreach (var field in receiverDraft.Fields.Where(f => f.Page > 0))
-            {
-                await DocReceiverElementRepository.CreateAsync(new DocReceiverElement
-                {
-                    DocumentId = document.Id,
-                    ReceiverId = link.ReceiverId,
-                    ElementType = 1,
-                    X = field.X,
-                    Y = field.Y,
-                    Width = 1.77,
-                    Height = 1.96,
-                    Page = field.Page,
-                    Required = true,
-                    ReadOnly = false,
-                    AnnotationIndex = 0,
-                    AddedWhen = now,
-                    FullName = link.Name,
-                    Position = string.Empty,
-                    Place = string.Empty,
-                    Tooltip = string.Empty
-                }, cancel);
-            }
-        }
-    }
-
-    private async Task<(EnvelopeReceiver Link, int NextSequence)> GetOrCreateEnvelopeReceiverAsync(
-        int envelopeId,
-        CreateEnvelopeReceiverDto receiverDraft,
-        IDictionary<string, EnvelopeReceiver> linksByEmail,
-        DateTime now,
-        int sequence,
-        CancellationToken cancel)
-    {
-        if (linksByEmail.TryGetValue(receiverDraft.EmailAddress, out var existingLink))
-        {
-            var nextName = string.IsNullOrWhiteSpace(receiverDraft.Name) ? existingLink.Name : receiverDraft.Name!;
-            var nextPhoneNumber = receiverDraft.PhoneNumber ?? existingLink.PhoneNumber;
-
-            await EnvelopeReceiverRepository.UpdateAsync(er =>
-            {
-                er.Name = nextName;
-                er.PhoneNumber = nextPhoneNumber;
-                er.ChangedWhen = now;
-            }, er => er.EnvelopeId == existingLink.EnvelopeId && er.ReceiverId == existingLink.ReceiverId, cancel);
-
-            existingLink.Name = nextName;
-            existingLink.PhoneNumber = nextPhoneNumber;
-            return (existingLink, sequence);
-        }
-
-        var receiver = await ReceiverRepository.Query
-            .FirstOrDefaultAsync(r => r.EmailAddress != null && r.EmailAddress.ToLower() == receiverDraft.EmailAddress, cancel);
-
-        if (receiver is null)
-        {
-            receiver = await ReceiverRepository.CreateAsync(new Receiver
-            {
-                EmailAddress = receiverDraft.EmailAddress,
-                Signature = receiverDraft.EmailAddress.ToUpperInvariant().GetChecksum(),
-                AddedWhen = now,
-                TotpSecretkey = string.Empty,
-                TfaRegDeadline = null
-            }, cancel);
-        }
-
-        sequence++;
-        var link = await EnvelopeReceiverRepository.CreateAsync(new EnvelopeReceiver
-        {
-            EnvelopeId = envelopeId,
-            ReceiverId = receiver.Id,
-            Sequence = sequence,
-            Name = receiverDraft.Name ?? receiverDraft.EmailAddress,
-            JobTitle = string.Empty,
-            CompanyName = string.Empty,
-            PrivateMessage = string.Empty,
-            AccessCode = string.Empty,
-            AddedWhen = now,
-            ChangedWhen = now,
-            PhoneNumber = receiverDraft.PhoneNumber ?? string.Empty
-        }, cancel);
-
-        link.Receiver = receiver;
-        linksByEmail[receiverDraft.EmailAddress] = link;
-        return (link, sequence);
-    }
-
-    private async Task SendEnvelopeAsync(Envelope envelope, CancellationToken cancel)
-    {
-        var hasDocument = await DocumentRepository.Query
-            .AnyAsync(d => d.EnvelopeId == envelope.Id && d.ByteData != null && d.ByteData.Length > 0, cancel);
-
-        if (!hasDocument)
-            throw new BadRequestException("Cannot send envelope without a document.");
-
-        var links = await EnvelopeReceiverRepository.Query
-            .Include(er => er.Receiver)
-            .Where(er => er.EnvelopeId == envelope.Id)
-            .ToListAsync(cancel);
-
-        if (links.Count == 0)
-            throw new BadRequestException("Cannot send envelope without receivers.");
-
-        var receiverIds = links.Select(l => l.ReceiverId).Distinct().ToList();
-        var documentIds = await DocumentRepository.Query
-            .Where(d => d.EnvelopeId == envelope.Id)
-            .Select(d => d.Id)
-            .ToListAsync(cancel);
-
-        var receiverFieldCounts = await DocReceiverElementRepository.Query
-            .Where(e => documentIds.Contains(e.DocumentId))
-            .Where(e => receiverIds.Contains(e.ReceiverId))
-            .GroupBy(e => e.ReceiverId)
-            .Select(g => new { ReceiverId = g.Key, Count = g.Count() })
-            .ToDictionaryAsync(x => x.ReceiverId, x => x.Count, cancel);
-
-        var receiversWithoutFields = links
-            .Where(link => !receiverFieldCounts.TryGetValue(link.ReceiverId, out var count) || count <= 0)
-            .Select(link => link.Name)
-            .ToList();
-
-        if (receiversWithoutFields.Count > 0)
-            throw new BadRequestException("Cannot send envelope because some receivers have no signature fields.");
-
-        var changedWhen = DateTime.Now;
-        await Repository.UpdateAsync(e =>
-        {
-            e.Status = EnvelopeStatus.EnvelopeQueued;
-            e.ChangedWhen = changedWhen;
-        }, e => e.Id == envelope.Id, cancel);
-
-        var userReference = await ResolveSenderReferenceAsync(envelope, cancel);
-
-        await Mediator.Send(new CreateHistoryCommand
-        {
-            EnvelopeId = envelope.Id,
-            UserReference = userReference,
-            Status = EnvelopeStatus.EnvelopeQueued
-        }, cancel);
-
-        await QueueInvitationEmailsAsync(envelope, links, userReference, cancel);
-
-        envelope.Status = EnvelopeStatus.EnvelopeQueued;
-    }
-
-    private async Task QueueInvitationEmailsAsync(
-        Envelope envelope,
-        IReadOnlyCollection<EnvelopeReceiver> links,
-        string senderReference,
-        CancellationToken cancel)
-    {
-        var template = await EmailTemplateRepository.Query
-            .SingleOrDefaultAsync(x => x.Name == EmailTemplateType.DocumentReceived.ToString(), cancel)
-            ?? throw new InvalidOperationException($"Email template not found: {EmailTemplateType.DocumentReceived}");
-
-        var signatureHost = await ConfigService.ReadDefaultSignatureHost();
-        var senderName = senderReference;
-
-        foreach (var link in links)
-        {
-            var receiver = link.Receiver;
-            if (receiver is null || string.IsNullOrWhiteSpace(receiver.EmailAddress) || string.IsNullOrWhiteSpace(receiver.Signature))
-                continue;
-
-            var envelopeKey = (envelope.Uuid, receiver.Signature).ToEnvelopeKey();
-            var documentLink = $"{signatureHost.TrimEnd('/')}/envelope/login/{Uri.EscapeDataString(envelopeKey)}";
-
-            var placeholders = new Dictionary<string, string>(MailParams.Placeholders)
-            {
-                ["[NAME_RECEIVER]"] = link.Name ?? string.Empty,
-                ["[NAME_SENDER]"] = senderName ?? string.Empty,
-                ["[DOCUMENT_TITLE]"] = envelope.Title ?? string.Empty,
-                ["[MESSAGE]"] = envelope.Message ?? string.Empty,
-                ["[LINK_TO_DOCUMENT]"] = documentLink,
-                ["[LINK_TO_DOCUMENT_TEXT]"] = documentLink[..Math.Min(40, documentLink.Length)] + ".."
-            };
-
-            var subject = ReplacePlaceHolders(template.Subject, placeholders);
-            var body = ReplacePlaceHolders(template.Body, placeholders);
-
-            var emailOut = new EmailOut
-            {
-                EmailAddress = receiver.EmailAddress,
-                EmailSubj = subject,
-                EmailBody = body,
-                AddedWhen = DateTime.Now,
-                AddedWho = DispatcherParams.AddedWho,
-                SendingProfile = DispatcherParams.SendingProfile,
-                ReminderTypeId = DispatcherParams.ReminderTypeId,
-                EmailAttmt1 = DispatcherParams.EmailAttmt1,
-                WfId = (int)EnvelopeStatus.MessageInvitationSent,
-                ReferenceString = receiver.EmailAddress,
-                ReferenceId = link.ReceiverId
-            };
-
-            await EmailOutRepository.CreateAsync(emailOut, cancel);
-        }
-    }
-
-    private static string ReplacePlaceHolders(string text, Dictionary<string, string> placeHolders)
-    {
-        foreach (var placeHolder in placeHolders)
-            text = text.Replace(placeHolder.Key, placeHolder.Value);
-
-        return text;
-    }
 }

EnvelopeGenerator.Application/Envelopes/Commands/DeleteEnvelopeCommand.cs

@@ -1,25 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-using EnvelopeGenerator.Domain.Constants;
-using MediatR;
-
-namespace EnvelopeGenerator.Application.Envelopes.Commands;
-
-public record DeleteEnvelopeResultDto(int EnvelopeId, EnvelopeStatus AppliedStatus, bool IsNoOp);
-
-public record DeleteEnvelopeCommand : IRequest<DeleteEnvelopeResultDto>
-{
-    [Required]
-    public int EnvelopeId { get; init; }
-
-    [Required]
-    [MinLength(1)]
-    public string Reason { get; init; } = string.Empty;
-
-    internal int UserId { get; private set; }
-
-    public DeleteEnvelopeCommand WithAuth(int userId)
-    {
-        UserId = userId;
-        return this;
-    }
-}

EnvelopeGenerator.Application/Envelopes/Commands/DeleteEnvelopeCommandHandler.cs

@@ -1,89 +0,0 @@
-using EnvelopeGenerator.Application.Common.Notifications.EnvelopeDeleted;
-using DigitalData.Core.Abstraction.Application.Repository;
-using DigitalData.Core.Exceptions;
-using EnvelopeGenerator.Application.Histories.Commands;
-using EnvelopeGenerator.Domain.Constants;
-using EnvelopeGenerator.Domain.Entities;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using System.Linq;
-
-namespace EnvelopeGenerator.Application.Envelopes.Commands;
-
-public class DeleteEnvelopeCommandHandler : IRequestHandler<DeleteEnvelopeCommand, DeleteEnvelopeResultDto>
-{
-    private readonly IRepository<Envelope> _envelopeRepository;
-    private readonly IMediator _mediator;
-
-    public DeleteEnvelopeCommandHandler(
-        IRepository<Envelope> envelopeRepository,
-        IMediator mediator)
-    {
-        _envelopeRepository = envelopeRepository;
-        _mediator = mediator;
-    }
-
-    public async Task<DeleteEnvelopeResultDto> Handle(DeleteEnvelopeCommand request, CancellationToken cancel)
-    {
-        var reason = request.Reason?.Trim();
-        if (string.IsNullOrWhiteSpace(reason))
-            throw new BadRequestException("Please provide a reason.");
-
-        var envelope = await _envelopeRepository.Query
-            .Include(e => e.User)
-            .Include(e => e.EnvelopeReceivers)
-                .ThenInclude(er => er.Receiver)
-            .FirstOrDefaultAsync(e => e.Id == request.EnvelopeId, cancel)
-            ?? throw new NotFoundException($"Envelope {request.EnvelopeId} not found.");
-
-        if (envelope.UserId != request.UserId)
-            throw new ForbiddenException();
-
-        if (envelope.Status is EnvelopeStatus.EnvelopeDeleted or EnvelopeStatus.EnvelopeWithdrawn)
-            return new DeleteEnvelopeResultDto(envelope.Id, envelope.Status, IsNoOp: true);
-
-        var targetStatus = envelope.Status > EnvelopeStatus.EnvelopeSaved
-            ? EnvelopeStatus.EnvelopeWithdrawn
-            : EnvelopeStatus.EnvelopeDeleted;
-
-        var changedWhen = DateTime.Now;
-        envelope.Status = targetStatus;
-        envelope.Comment = reason;
-        envelope.ChangedWhen = changedWhen;
-
-        await _envelopeRepository.UpdateAsync(e =>
-        {
-            e.Status = targetStatus;
-            e.Comment = reason;
-            e.ChangedWhen = changedWhen;
-        }, e => e.Id == envelope.Id, cancel);
-
-        var userReference = envelope.User?.Email;
-        if (string.IsNullOrWhiteSpace(userReference))
-            throw new BadRequestException("Envelope sender email is missing.");
-
-        await _mediator.Send(new CreateHistoryCommand
-        {
-            EnvelopeId = envelope.Id,
-            UserReference = userReference,
-            Status = targetStatus,
-            Comment = reason
-        }, cancel);
-
-        foreach (var envelopeReceiver in envelope.EnvelopeReceivers ?? Enumerable.Empty<EnvelopeReceiver>())
-        {
-            if (envelopeReceiver.Receiver is null)
-                continue;
-
-            await _mediator.Publish(new EnvelopeDeletedNotification
-            {
-                Envelope = envelope,
-                EnvelopeReceiver = envelopeReceiver,
-                Reason = reason,
-                SenderReference = userReference
-            }, cancel);
-        }
-
-        return new DeleteEnvelopeResultDto(envelope.Id, targetStatus, IsNoOp: false);
-    }
-}

EnvelopeGenerator.Application/Envelopes/Queries/ReadEnvelopeQuery.cs

@@ -14,16 +14,6 @@ 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>
@@ -32,7 +22,7 @@ public record ReadEnvelopeQuery : EnvelopeQueryBase, IRequest<IEnumerable<Envelo
     /// <summary>
     /// Optionaler Benutzerfilter; wenn gesetzt, werden nur Umschläge des Benutzers geladen.
     /// </summary>
-    internal int? UserId { get; init; }
+    public int? UserId { get; init; }
 
     /// <summary>
     /// Setzt den Benutzerkontext für die Abfrage.
@@ -142,16 +132,8 @@ 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.Type)
+            .Include(e => e.Documents)
-            .Include(e => e.EnvelopeReceivers).ThenInclude(er => er.Receiver)
-            .Include(e => e.Histories)
             .ToListAsync(cancel);
 
         return _mapper.Map<IEnumerable<EnvelopeDto>>(envelopes);

EnvelopeGenerator.Application/Histories/Commands/CreateHistoryCommand.cs

@@ -34,7 +34,7 @@ public record CreateHistoryCommand : EnvelopeReceiverQueryBase, IRequest<History
     /// <summary>
     /// 
     /// </summary>
-    public DateTime AddedWhen { get; } = DateTime.Now;
+    public DateTime AddedWhen { get; } = DateTime.UtcNow;
 
     /// <summary>
     ///