First successfull build

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Auth/ApiAuthStateProvider.cs

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+using System.Security.Claims;
+using Microsoft.AspNetCore.Components.Authorization;
+using EnvelopeGenerator.ReceiverUI.Client.Services;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Auth;
+
+/// <summary>
+/// Fragt die API, ob der Nutzer eingeloggt ist.
+/// 
+/// WARUM nicht selbst Token lesen?
+/// - Das Auth-Cookie ist HttpOnly → JavaScript/WASM kann es nicht lesen
+/// - Stattdessen: Frage die API "bin ich eingeloggt?" → GET /api/auth/check
+/// - Die API prüft das Cookie serverseitig und antwortet mit 200 oder 401
+/// </summary>
+public class ApiAuthStateProvider : AuthenticationStateProvider
+{
+    private readonly IAuthService _authService;
+
+    public ApiAuthStateProvider(IAuthService authService)
+    {
+        _authService = authService;
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        var result = await _authService.CheckAuthAsync();
+
+        if (result.IsSuccess)
+        {
+            // Eingeloggt → Erstelle einen authentifizierten ClaimsPrincipal
+            var identity = new ClaimsIdentity("cookie");
+            return new AuthenticationState(new ClaimsPrincipal(identity));
+        }
+
+        // Nicht eingeloggt
+        return new AuthenticationState(new ClaimsPrincipal(new ClaimsIdentity()));
+    }
+
+    /// <summary>
+    /// Wird nach Login/Logout aufgerufen, damit Blazor den Auth-State aktualisiert.
+    /// </summary>
+    public void NotifyAuthChanged()
+    {
+        NotifyAuthenticationStateChanged(GetAuthenticationStateAsync());
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Envelope/AccessCodeForm.razor

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+@* DUMB COMPONENT: Kennt keine Services, nur Parameter und Events *@
+
+<div class="access-code-container">
+    <h2>Zugangscode eingeben</h2>
+    <p>Ein Zugangscode wurde an Ihre E-Mail-Adresse gesendet.</p>
+
+    <EditForm Model="_model" OnValidSubmit="Submit">
+        <DataAnnotationsValidator />
+
+        <div class="form-group">
+            <InputText @bind-Value="_model.Code"
+                       class="form-control code-input"
+                       placeholder="000000"
+                       maxlength="6" />
+            <ValidationMessage For="() => _model.Code" />
+        </div>
+
+        @if (!string.IsNullOrEmpty(ErrorMessage))
+        {
+            <div class="alert alert-danger mt-2">@ErrorMessage</div>
+        }
+
+        <button type="submit" class="btn btn-primary mt-3" disabled="@_isSubmitting">
+            @if (_isSubmitting)
+            {
+                <LoadingIndicator Small="true" />
+            }
+            else
+            {
+                <span>Bestätigen</span>
+            }
+        </button>
+    </EditForm>
+</div>
+
+@code {
+    // Parameter von der Eltern-Page
+    [Parameter] public required string EnvelopeKey { get; set; }
+    [Parameter] public string? ErrorMessage { get; set; }
+
+    // EventCallback: Informiert die Page, dass ein Code eingegeben wurde
+    [Parameter] public EventCallback<string> OnSubmit { get; set; }
+
+    private AccessCodeModel _model = new();
+    private bool _isSubmitting;
+
+    private async Task Submit()
+    {
+        _isSubmitting = true;
+        await OnSubmit.InvokeAsync(_model.Code);
+        _isSubmitting = false;
+    }
+
+    private class AccessCodeModel
+    {
+        [System.ComponentModel.DataAnnotations.Required(ErrorMessage = "Bitte Zugangscode eingeben")]
+        [System.ComponentModel.DataAnnotations.StringLength(6, MinimumLength = 4)]
+        public string Code { get; set; } = string.Empty;
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Envelope/PdfViewer.razor

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+@inject IJSRuntime JS
+@implements IAsyncDisposable
+
+<div id="pspdfkit-container" class="pdf-container" style="width: 100%; height: 80vh;"></div>
+
+@code {
+    [Parameter] public byte[]? DocumentBytes { get; set; }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (firstRender && DocumentBytes is not null)
+        {
+            // TODO: PSPDFKit JS-Interop implementieren (Phase 6)
+            // await JS.InvokeVoidAsync("initPdfViewer", DocumentBytes);
+        }
+    }
+
+    public async ValueTask DisposeAsync()
+    {
+        // TODO: PSPDFKit aufräumen
+        // await JS.InvokeVoidAsync("destroyPdfViewer");
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Envelope/SignaturePanel.razor

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+<h3>SignaturePanel</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Envelope/TwoFactorForm.razor

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+<h3>TwoFactorForm</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Layout/NavHeader.razor

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+<h3>NavHeader</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Shared/AlertMessage.razor

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+<h3>AlertMessage</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Shared/ErrorDisplay.razor

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+<div class="text-center py-5">
+    @if (!string.IsNullOrEmpty(Icon))
+    {
+        <div class="mb-3">
+            <i class="bi bi-@Icon" style="font-size: 3rem;"></i>
+        </div>
+    }
+    <h2>@Title</h2>
+    @if (!string.IsNullOrEmpty(Message))
+    {
+        <p class="text-muted">@Message</p>
+    }
+</div>
+
+@code {
+    [Parameter] public string Title { get; set; } = "Fehler";
+    [Parameter] public string? Message { get; set; }
+    [Parameter] public string? Icon { get; set; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Shared/LanguageSelector.razor

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+<h3>LanguageSelector</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Components/Shared/LoadingIndicator.razor

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+<div class="d-flex justify-content-center align-items-center @(Small ? "" : "py-5")" style="@(Small ? "" : "min-height: 40vh;")">
+    <div class="text-center">
+        <div class="spinner-border @(Small ? "spinner-border-sm" : "text-primary")"
+             style="@(Small ? "" : "width: 3rem; height: 3rem;")"
+             role="status">
+            <span class="visually-hidden">Laden...</span>
+        </div>
+        @if (!Small && Message is not null)
+        {
+            <p class="mt-3 text-muted">@Message</p>
+        }
+    </div>
+</div>
+
+@code {
+    [Parameter] public bool Small { get; set; }
+    [Parameter] public string? Message { get; set; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/EnvelopeGenerator.ReceiverUI.Client.csproj

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+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
+
+	<PropertyGroup>
+		<TargetFramework>net9.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+		<NoDefaultLaunchSettingsFile>true</NoDefaultLaunchSettingsFile>
+		<StaticWebAssetProjectMode>Default</StaticWebAssetProjectMode>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.AspNetCore.Components.Authorization" Version="9.0.3" />
+		<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="9.0.3" />
+		<PackageReference Include="Microsoft.Extensions.Http" Version="9.0.3" />
+	</ItemGroup>
+
+</Project>

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/AuthState.cs

@@ -0,0 +1,13 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Hält den aktuellen Authentifizierungs-Zustand im Client.
+/// Wird vom ApiAuthStateProvider gesetzt und von Komponenten gelesen.
+/// </summary>
+public class AuthState
+{
+    public bool IsAuthenticated { get; set; }
+    public string? Role { get; set; }
+    public string? EnvelopeUuid { get; set; }
+    public string? ReceiverEmail { get; set; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/DocumentModel.cs

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+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Client-seitiges DTO für Dokument-Daten.
+/// </summary>
+public record DocumentModel
+{
+    public int Id { get; init; }
+    public int EnvelopeId { get; init; }
+    public DateTime AddedWhen { get; init; }
+    public byte[]? ByteData { get; init; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/EnvelopeModel.cs

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+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Client-seitiges DTO für Umschlag-Daten.
+/// Muss nur die JSON-Properties matchen, die die API zurückgibt
+/// und die der Client tatsächlich braucht.
+/// 
+/// WARUM eigene DTOs statt die aus EnvelopeGenerator.Application?
+/// - Application hat Server-Abhängigkeiten (SqlClient, JwtBearer, EF Core)
+/// - Diese Pakete existieren nicht für browser-wasm → Build-Fehler
+/// - Der Client braucht nur eine Teilmenge der Felder
+/// - Eigene DTOs machen den Client unabhängig vom Server
+/// </summary>
+public record EnvelopeModel
+{
+    public int Id { get; init; }
+    public string Uuid { get; init; } = string.Empty;
+    public string Title { get; init; } = string.Empty;
+    public string Message { get; init; } = string.Empty;
+    public bool UseAccessCode { get; init; }
+    public bool TFAEnabled { get; init; }
+    public bool ReadOnly { get; init; }
+    public string Language { get; init; } = "de-DE";
+    public DateTime AddedWhen { get; init; }
+    public UserModel? User { get; init; }
+    public IEnumerable<DocumentModel>? Documents { get; init; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/EnvelopeReceiverModel.cs

@@ -0,0 +1,15 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Client-seitiges DTO für die Envelope-Receiver-Zuordnung.
+/// </summary>
+public record EnvelopeReceiverModel
+{
+    public EnvelopeModel? Envelope { get; init; }
+    public ReceiverModel? Receiver { get; init; }
+    public int EnvelopeId { get; init; }
+    public int ReceiverId { get; init; }
+    public int Sequence { get; init; }
+    public string? Name { get; init; }
+    public bool HasPhoneNumber { get; init; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/EnvelopeViewModel.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Models
+{
+    public class EnvelopeViewModel
+    {
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/ReceiverModel.cs

@@ -0,0 +1,13 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Client-seitiges DTO für Empfänger-Daten.
+/// </summary>
+public record ReceiverModel
+{
+    public int Id { get; init; }
+    public string EmailAddress { get; init; } = string.Empty;
+    public string Signature { get; init; } = string.Empty;
+    public DateTime AddedWhen { get; init; }
+    public DateTime? TfaRegDeadline { get; init; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Models/UserModel.cs

@@ -0,0 +1,10 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Models;
+
+/// <summary>
+/// Client-seitiges DTO für Benutzer-Daten (Absender).
+/// </summary>
+public record UserModel
+{
+    public string? Email { get; init; }
+    public string? DisplayName { get; init; }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Envelope/EnvelopeExpired.razor

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+<h3>EnvelopeExpired</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Envelope/EnvelopeLocked.razor

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+<h3>EnvelopeLocked</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Envelope/EnvelopePage.razor

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+@page "/envelope/{EnvelopeKey}"
+@rendermode InteractiveAuto
+@inject IEnvelopeService EnvelopeService
+@inject EnvelopeState State
+@implements IDisposable
+
+<PageTitle>Dokument</PageTitle>
+
+@switch (State.Status)
+{
+    case EnvelopePageStatus.Loading:
+        <LoadingIndicator Message="Dokument wird geladen..." />
+        break;
+
+    case EnvelopePageStatus.NotFound:
+        <ErrorDisplay Title="Nicht gefunden"
+                      Message="Dieses Dokument existiert nicht oder ist nicht mehr verfügbar." />
+        break;
+
+    case EnvelopePageStatus.AlreadySigned:
+        <ErrorDisplay Title="Bereits unterschrieben"
+                      Message="Dieses Dokument wurde bereits unterschrieben."
+                      Icon="check-circle" />
+        break;
+
+    case EnvelopePageStatus.RequiresAccessCode:
+        <AccessCodeForm EnvelopeKey="@EnvelopeKey"
+                        ErrorMessage="@State.ErrorMessage"
+                        OnSubmit="HandleAccessCodeSubmit" />
+        break;
+
+    case EnvelopePageStatus.ShowDocument:
+        <PdfViewer DocumentBytes="@_documentBytes" />
+        break;
+
+    case EnvelopePageStatus.Error:
+        <ErrorDisplay Title="Fehler" Message="@State.ErrorMessage" />
+        break;
+}
+
+@code {
+    [Parameter] public string EnvelopeKey { get; set; } = default!;
+
+    private byte[]? _documentBytes;
+
+    protected override async Task OnInitializedAsync()
+    {
+        State.OnChange += StateHasChanged;
+        await LoadEnvelopeAsync();
+    }
+
+    private async Task LoadEnvelopeAsync()
+    {
+        State.SetLoading();
+
+        // Die genaue API-Logik hängt von den verfügbaren Endpunkten ab.
+        // Dies ist die Struktur — die konkreten Endpoints implementierst du
+        // basierend auf den vorhandenen API-Controllern.
+        var result = await EnvelopeService.GetEnvelopeReceiversAsync();
+
+        if (!result.IsSuccess)
+        {
+            if (result.StatusCode == 401)
+                State.SetAccessCodeRequired();
+            else if (result.StatusCode == 404)
+                State.SetNotFound();
+            else
+                State.SetError(result.ErrorMessage ?? "Unbekannter Fehler");
+            return;
+        }
+
+        // Daten verarbeiten und Status setzen
+        State.SetDocument();
+    }
+
+    private async Task HandleAccessCodeSubmit(string code)
+    {
+        // AccessCode an API senden
+        // Bei Erfolg: State.SetDocument() oder State.SetTwoFactorRequired()
+        // Bei Fehler: State.SetError(...)
+    }
+
+    public void Dispose() => State.OnChange -= StateHasChanged;
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Envelope/EnvelopeRejected.razor

@@ -0,0 +1,5 @@
+<h3>EnvelopeRejected</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Envelope/EnvelopeSigned.razor

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+<h3>EnvelopeSigned</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/Home.razor

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+<h3>Home</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Pages/NotFound.razor

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+<h3>NotFound</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Program.cs

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+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
+using EnvelopeGenerator.ReceiverUI.Client.Auth;
+using EnvelopeGenerator.ReceiverUI.Client.Services;
+using EnvelopeGenerator.ReceiverUI.Client.State;
+
+var builder = WebAssemblyHostBuilder.CreateDefault(args);
+
+// HttpClient: BaseAddress zeigt auf den ReceiverUI-Server (gleiche Domain)
+// Von dort werden alle /api/* Calls via YARP an die echte API weitergeleitet
+builder.Services.AddScoped(sp =>
+    new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
+
+// Auth: Blazor fragt über diesen Provider "Ist der Nutzer eingeloggt?"
+builder.Services.AddAuthorizationCore();
+builder.Services.AddScoped<ApiAuthStateProvider>();
+builder.Services.AddScoped<AuthenticationStateProvider>(sp =>
+    sp.GetRequiredService<ApiAuthStateProvider>());
+
+// API-Services: Je ein Service pro API-Controller
+builder.Services.AddScoped<IAuthService, AuthService>();
+builder.Services.AddScoped<IEnvelopeService, EnvelopeService>();
+
+// State: Ein State-Objekt pro Browser-Tab
+builder.Services.AddScoped<EnvelopeState>();
+
+await builder.Build().RunAsync();

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/AuthService.cs

@@ -0,0 +1,54 @@
+using EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Services;
+
+/// <summary>
+/// Spricht mit dem bestehenden AuthController der API.
+/// Die API erkennt den Nutzer über das Cookie "AuthToken" automatisch.
+/// </summary>
+public class AuthService : ApiServiceBase, IAuthService
+{
+    public AuthService(HttpClient http, ILogger<AuthService> logger) : base(http, logger) { }
+
+    public async Task<ApiResponse> CheckAuthAsync(string? role = null, CancellationToken ct = default)
+    {
+        var endpoint = role is not null ? $"api/auth/check?role={role}" : "api/auth/check";
+        try
+        {
+            var response = await Http.GetAsync(endpoint, ct);
+            return response.IsSuccessStatusCode
+                ? ApiResponse.Success((int)response.StatusCode)
+                : ApiResponse.Failure((int)response.StatusCode);
+        }
+        catch (HttpRequestException ex)
+        {
+            Logger.LogError(ex, "HTTP error calling GET {Endpoint}", endpoint);
+            return ApiResponse.Failure(0, "Verbindung zum Server fehlgeschlagen.");
+        }
+        catch (TaskCanceledException)
+        {
+            return ApiResponse.Failure(0, "Anfrage abgebrochen.");
+        }
+    }
+
+    public async Task<ApiResponse> LogoutAsync(CancellationToken ct = default)
+    {
+        const string endpoint = "api/auth/logout";
+        try
+        {
+            var response = await Http.PostAsync(endpoint, null, ct);
+            return response.IsSuccessStatusCode
+                ? ApiResponse.Success((int)response.StatusCode)
+                : ApiResponse.Failure((int)response.StatusCode);
+        }
+        catch (HttpRequestException ex)
+        {
+            Logger.LogError(ex, "HTTP error calling POST {Endpoint}", endpoint);
+            return ApiResponse.Failure(0, "Verbindung zum Server fehlgeschlagen.");
+        }
+        catch (TaskCanceledException)
+        {
+            return ApiResponse.Failure(0, "Anfrage abgebrochen.");
+        }
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/Base/ApiResponse.cs

@@ -0,0 +1,38 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+/// <summary>
+/// Einheitliches Response-Objekt für ALLE API-Aufrufe.
+/// 
+/// WARUM: Jeder API-Aufruf kann fehlschlagen (Netzwerk, 401, 500...).
+/// Statt überall try-catch zu haben, kapselt dieses Objekt Erfolg/Fehler einheitlich.
+/// So kann jede Blazor-Komponente einheitlich darauf reagieren.
+/// </summary>
+public record ApiResponse<T>
+{
+    public bool IsSuccess { get; init; }
+    public T? Data { get; init; }
+    public int StatusCode { get; init; }
+    public string? ErrorMessage { get; init; }
+
+    public static ApiResponse<T> Success(T data, int statusCode = 200)
+        => new() { IsSuccess = true, Data = data, StatusCode = statusCode };
+
+    public static ApiResponse<T> Failure(int statusCode, string? error = null)
+        => new() { IsSuccess = false, StatusCode = statusCode, ErrorMessage = error };
+}
+
+/// <summary>
+/// Response ohne Daten (für POST/PUT/DELETE die nur Status zurückgeben).
+/// </summary>
+public record ApiResponse
+{
+    public bool IsSuccess { get; init; }
+    public int StatusCode { get; init; }
+    public string? ErrorMessage { get; init; }
+
+    public static ApiResponse Success(int statusCode = 200)
+        => new() { IsSuccess = true, StatusCode = statusCode };
+
+    public static ApiResponse Failure(int statusCode, string? error = null)
+        => new() { IsSuccess = false, StatusCode = statusCode, ErrorMessage = error };
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/Base/ApiServiceBase.cs

@@ -0,0 +1,110 @@
+using System.Net.Http.Json;
+using Microsoft.Extensions.Logging;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+/// <summary>
+/// Basisklasse für ALLE API-Services.
+/// 
+/// WARUM eine Basisklasse?
+/// - Einheitliches Error-Handling: Jeder API-Aufruf wird gleich behandelt
+/// - DRY (Don't Repeat Yourself): Logging, Fehlerbehandlung, Serialisierung nur einmal
+/// - Einfache Erweiterung: Retry-Logik, Token-Refresh etc. nur hier ändern
+/// </summary>
+public abstract class ApiServiceBase
+{
+    protected readonly HttpClient Http;
+    protected readonly ILogger Logger;
+
+    protected ApiServiceBase(HttpClient http, ILogger logger)
+    {
+        Http = http;
+        Logger = logger;
+    }
+
+    /// <summary>
+    /// GET-Request mit Deserialisierung.
+    /// Alle API GET-Aufrufe gehen durch diese Methode.
+    /// </summary>
+    protected async Task<ApiResponse<T>> GetAsync<T>(string endpoint, CancellationToken ct = default)
+    {
+        try
+        {
+            var response = await Http.GetAsync(endpoint, ct);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                var errorBody = await response.Content.ReadAsStringAsync(ct);
+                Logger.LogWarning("GET {Endpoint} failed: {Status} - {Body}",
+                    endpoint, (int)response.StatusCode, errorBody);
+                return ApiResponse<T>.Failure((int)response.StatusCode, errorBody);
+            }
+
+            var data = await response.Content.ReadFromJsonAsync<T>(cancellationToken: ct);
+            return ApiResponse<T>.Success(data!, (int)response.StatusCode);
+        }
+        catch (HttpRequestException ex)
+        {
+            Logger.LogError(ex, "HTTP error calling GET {Endpoint}", endpoint);
+            return ApiResponse<T>.Failure(0, "Verbindung zum Server fehlgeschlagen.");
+        }
+        catch (TaskCanceledException)
+        {
+            Logger.LogWarning("GET {Endpoint} was cancelled", endpoint);
+            return ApiResponse<T>.Failure(0, "Anfrage abgebrochen.");
+        }
+    }
+
+    /// <summary>
+    /// POST-Request mit Body und Response-Deserialisierung.
+    /// </summary>
+    protected async Task<ApiResponse<TResponse>> PostAsync<TRequest, TResponse>(
+        string endpoint, TRequest body, CancellationToken ct = default)
+    {
+        try
+        {
+            var response = await Http.PostAsJsonAsync(endpoint, body, ct);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                var errorBody = await response.Content.ReadAsStringAsync(ct);
+                Logger.LogWarning("POST {Endpoint} failed: {Status} - {Body}",
+                    endpoint, (int)response.StatusCode, errorBody);
+                return ApiResponse<TResponse>.Failure((int)response.StatusCode, errorBody);
+            }
+
+            var data = await response.Content.ReadFromJsonAsync<TResponse>(cancellationToken: ct);
+            return ApiResponse<TResponse>.Success(data!, (int)response.StatusCode);
+        }
+        catch (HttpRequestException ex)
+        {
+            Logger.LogError(ex, "HTTP error calling POST {Endpoint}", endpoint);
+            return ApiResponse<TResponse>.Failure(0, "Verbindung zum Server fehlgeschlagen.");
+        }
+    }
+
+    /// <summary>
+    /// POST-Request ohne Response-Body (z.B. Logout).
+    /// </summary>
+    protected async Task<ApiResponse> PostAsync<TRequest>(
+        string endpoint, TRequest body, CancellationToken ct = default)
+    {
+        try
+        {
+            var response = await Http.PostAsJsonAsync(endpoint, body, ct);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                var errorBody = await response.Content.ReadAsStringAsync(ct);
+                return ApiResponse.Failure((int)response.StatusCode, errorBody);
+            }
+
+            return ApiResponse.Success((int)response.StatusCode);
+        }
+        catch (HttpRequestException ex)
+        {
+            Logger.LogError(ex, "HTTP error calling POST {Endpoint}", endpoint);
+            return ApiResponse.Failure(0, "Verbindung zum Server fehlgeschlagen.");
+        }
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/EnvelopeService.cs

@@ -0,0 +1,16 @@
+using EnvelopeGenerator.ReceiverUI.Client.Models;
+using EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Services;
+
+public class EnvelopeService : ApiServiceBase, IEnvelopeService
+{
+    public EnvelopeService(HttpClient http, ILogger<EnvelopeService> logger) : base(http, logger) { }
+
+    public Task<ApiResponse<IEnumerable<EnvelopeModel>>> GetEnvelopesAsync(CancellationToken ct = default)
+        => GetAsync<IEnumerable<EnvelopeModel>>("api/envelope", ct);
+
+    public Task<ApiResponse<IEnumerable<EnvelopeReceiverModel>>> GetEnvelopeReceiversAsync(
+        CancellationToken ct = default)
+        => GetAsync<IEnumerable<EnvelopeReceiverModel>>("api/envelopereceiver", ct);
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/HistoryService.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Services
+{
+    public class HistoryService
+    {
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/IAuthService.cs

@@ -0,0 +1,20 @@
+using EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Services;
+
+/// <summary>
+/// Kommuniziert mit dem AuthController der API.
+/// 
+/// WARUM Interface + Implementierung?
+/// - Testbarkeit: In Unit-Tests kann man einen Mock verwenden
+/// - Austauschbarkeit: Wenn sich die API ändert, ändert sich nur die Implementierung
+/// - Blazor-Konvention: Services werden über Interfaces per DI registriert
+/// </summary>
+public interface IAuthService
+{
+    /// <summary>Prüft ob der Nutzer eingeloggt ist → GET /api/auth/check</summary>
+    Task<ApiResponse> CheckAuthAsync(string? role = null, CancellationToken ct = default);
+
+    /// <summary>Logout → POST /api/auth/logout</summary>
+    Task<ApiResponse> LogoutAsync(CancellationToken ct = default);
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/IEnvelopeService.cs

@@ -0,0 +1,18 @@
+using EnvelopeGenerator.ReceiverUI.Client.Models;
+using EnvelopeGenerator.ReceiverUI.Client.Services.Base;
+
+namespace EnvelopeGenerator.ReceiverUI.Client.Services;
+
+/// <summary>
+/// Kommuniziert mit EnvelopeController und EnvelopeReceiverController.
+/// Verwendet Client-eigene Models statt der Server-DTOs.
+/// </summary>
+public interface IEnvelopeService
+{
+    /// <summary>Lädt Umschläge → GET /api/envelope</summary>
+    Task<ApiResponse<IEnumerable<EnvelopeModel>>> GetEnvelopesAsync(CancellationToken ct = default);
+
+    /// <summary>Lädt EnvelopeReceiver → GET /api/envelopereceiver</summary>
+    Task<ApiResponse<IEnumerable<EnvelopeReceiverModel>>> GetEnvelopeReceiversAsync(
+        CancellationToken ct = default);
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/Services/IHistoryService.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.Services
+{
+    public interface IHistoryService
+    {
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/State/AuthState.cs

@@ -0,0 +1,6 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.State
+{
+    public class AuthState
+    {
+    }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/State/EnvelopeState.cs

@@ -0,0 +1,81 @@
+namespace EnvelopeGenerator.ReceiverUI.Client.State;
+
+/// <summary>
+/// Hält den aktuellen Zustand des geladenen Umschlags.
+/// 
+/// WARUM ein eigenes State-Objekt?
+/// - Mehrere Komponenten auf einer Seite brauchen die gleichen Daten
+/// - Ohne State müsste jede Komponente die Daten selbst laden → doppelte API-Calls
+/// - StateHasChanged() informiert automatisch alle Subscriber
+/// 
+/// PATTERN: "Observable State" — Services setzen den State, Komponenten reagieren darauf.
+/// </summary>
+public class EnvelopeState
+{
+    private EnvelopePageStatus _status = EnvelopePageStatus.Loading;
+    private string? _errorMessage;
+
+    /// <summary>Aktueller Seitenstatus</summary>
+    public EnvelopePageStatus Status
+    {
+        get => _status;
+        private set
+        {
+            _status = value;
+            NotifyStateChanged();
+        }
+    }
+
+    /// <summary>Fehlermeldung (falls vorhanden)</summary>
+    public string? ErrorMessage
+    {
+        get => _errorMessage;
+        private set
+        {
+            _errorMessage = value;
+            NotifyStateChanged();
+        }
+    }
+
+    // --- Zustandsübergänge (öffentliche Methoden) ---
+
+    public void SetLoading() => Status = EnvelopePageStatus.Loading;
+
+    public void SetAccessCodeRequired()
+    {
+        ErrorMessage = null;
+        Status = EnvelopePageStatus.RequiresAccessCode;
+    }
+
+    public void SetTwoFactorRequired() => Status = EnvelopePageStatus.RequiresTwoFactor;
+
+    public void SetDocument() => Status = EnvelopePageStatus.ShowDocument;
+
+    public void SetError(string message)
+    {
+        ErrorMessage = message;
+        Status = EnvelopePageStatus.Error;
+    }
+
+    public void SetAlreadySigned() => Status = EnvelopePageStatus.AlreadySigned;
+    public void SetRejected() => Status = EnvelopePageStatus.Rejected;
+    public void SetNotFound() => Status = EnvelopePageStatus.NotFound;
+
+    // --- Event: Benachrichtigt Komponenten über Änderungen ---
+    public event Action? OnChange;
+    private void NotifyStateChanged() => OnChange?.Invoke();
+}
+
+/// <summary>Alle möglichen Zustände der Umschlag-Seite</summary>
+public enum EnvelopePageStatus
+{
+    Loading,
+    RequiresAccessCode,
+    RequiresTwoFactor,
+    ShowDocument,
+    AlreadySigned,
+    Rejected,
+    NotFound,
+    Expired,
+    Error
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/_Imports.razor

@@ -0,0 +1,17 @@
+@using System.Net.Http
+@using System.Net.Http.Json
+@using Microsoft.AspNetCore.Components.Authorization
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using static Microsoft.AspNetCore.Components.Web.RenderMode
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.JSInterop
+@using EnvelopeGenerator.ReceiverUI.Client
+@using EnvelopeGenerator.ReceiverUI.Client.Models
+@using EnvelopeGenerator.ReceiverUI.Client.Services
+@using EnvelopeGenerator.ReceiverUI.Client.Services.Base
+@using EnvelopeGenerator.ReceiverUI.Client.State
+@using EnvelopeGenerator.ReceiverUI.Client.Auth
+@using EnvelopeGenerator.ReceiverUI.Client.Components.Shared
+@using EnvelopeGenerator.ReceiverUI.Client.Components.Envelope

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.Client/wwwroot/css/app.css

@@ -0,0 +1,2 @@
+body {
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/App.razor

@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html lang="de">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <base href="/" />
+    <link rel="stylesheet" href="bootstrap/bootstrap.min.css" />
+    <link rel="stylesheet" href="app.css" />
+    <link rel="stylesheet" href="EnvelopeGenerator.ReceiverUI.styles.css" />
+    <link rel="icon" type="image/png" href="favicon.png" />
+    <HeadOutlet />
+</head>
+
+<body>
+    <Routes />
+    <script src="_framework/blazor.web.js"></script>
+</body>
+
+</html>

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Layout/AuthLayout.razor

@@ -0,0 +1,5 @@
+<h3>AuthLayout</h3>
+
+@code {
+
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Layout/MainLayout.razor

@@ -0,0 +1,34 @@
+@inherits LayoutComponentBase
+
+<div class="app-container">
+    <header class="app-header">
+        <div class="header-content">
+            <span class="app-title">signFLOW</span>
+        </div>
+    </header>
+
+    <main class="app-main">
+        <ErrorBoundary @ref="_errorBoundary">
+            <ChildContent>
+                @Body
+            </ChildContent>
+            <ErrorContent Context="ex">
+                <div class="error-container text-center py-5">
+                    <h2>😵 Ein unerwarteter Fehler ist aufgetreten</h2>
+                    <p class="text-muted">Bitte versuchen Sie es erneut.</p>
+                    <button class="btn btn-primary" @onclick="Recover">Erneut versuchen</button>
+                </div>
+            </ErrorContent>
+        </ErrorBoundary>
+    </main>
+
+    <footer class="app-footer text-center py-2 text-muted">
+        <small>&copy; @DateTime.Now.Year Digital Data GmbH</small>
+    </footer>
+</div>
+
+@code {
+    private ErrorBoundary? _errorBoundary;
+
+    private void Recover() => _errorBoundary?.Recover();
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Layout/MainLayout.razor.css

@@ -0,0 +1,96 @@
+.page {
+    position: relative;
+    display: flex;
+    flex-direction: column;
+}
+
+main {
+    flex: 1;
+}
+
+.sidebar {
+    background-image: linear-gradient(180deg, rgb(5, 39, 103) 0%, #3a0647 70%);
+}
+
+.top-row {
+    background-color: #f7f7f7;
+    border-bottom: 1px solid #d6d5d5;
+    justify-content: flex-end;
+    height: 3.5rem;
+    display: flex;
+    align-items: center;
+}
+
+    .top-row ::deep a, .top-row ::deep .btn-link {
+        white-space: nowrap;
+        margin-left: 1.5rem;
+        text-decoration: none;
+    }
+
+    .top-row ::deep a:hover, .top-row ::deep .btn-link:hover {
+        text-decoration: underline;
+    }
+
+    .top-row ::deep a:first-child {
+        overflow: hidden;
+        text-overflow: ellipsis;
+    }
+
+@media (max-width: 640.98px) {
+    .top-row {
+        justify-content: space-between;
+    }
+
+    .top-row ::deep a, .top-row ::deep .btn-link {
+        margin-left: 0;
+    }
+}
+
+@media (min-width: 641px) {
+    .page {
+        flex-direction: row;
+    }
+
+    .sidebar {
+        width: 250px;
+        height: 100vh;
+        position: sticky;
+        top: 0;
+    }
+
+    .top-row {
+        position: sticky;
+        top: 0;
+        z-index: 1;
+    }
+
+    .top-row.auth ::deep a:first-child {
+        flex: 1;
+        text-align: right;
+        width: 0;
+    }
+
+    .top-row, article {
+        padding-left: 2rem !important;
+        padding-right: 1.5rem !important;
+    }
+}
+
+#blazor-error-ui {
+    background: lightyellow;
+    bottom: 0;
+    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
+    display: none;
+    left: 0;
+    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
+    position: fixed;
+    width: 100%;
+    z-index: 1000;
+}
+
+    #blazor-error-ui .dismiss {
+        cursor: pointer;
+        position: absolute;
+        right: 0.75rem;
+        top: 0.5rem;
+    }

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Pages/Error.razor

@@ -0,0 +1,36 @@
+@page "/Error"
+@using System.Diagnostics
+
+<PageTitle>Error</PageTitle>
+
+<h1 class="text-danger">Error.</h1>
+<h2 class="text-danger">An error occurred while processing your request.</h2>
+
+@if (ShowRequestId)
+{
+    <p>
+        <strong>Request ID:</strong> <code>@RequestId</code>
+    </p>
+}
+
+<h3>Development Mode</h3>
+<p>
+    Swapping to <strong>Development</strong> environment will display more detailed information about the error that occurred.
+</p>
+<p>
+    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+    It can result in displaying sensitive information from exceptions to end users.
+    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+    and restarting the app.
+</p>
+
+@code{
+    [CascadingParameter]
+    private HttpContext? HttpContext { get; set; }
+
+    private string? RequestId { get; set; }
+    private bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+    protected override void OnInitialized() =>
+        RequestId = Activity.Current?.Id ?? HttpContext?.TraceIdentifier;
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Pages/Home.razor

@@ -0,0 +1,7 @@
+@page "/"
+
+<PageTitle>Home</PageTitle>
+
+<h1>Hello, world!</h1>
+
+Welcome to your new app.

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/Routes.razor

@@ -0,0 +1,14 @@
+<Router AppAssembly="typeof(Program).Assembly" AdditionalAssemblies="new[] { typeof(Client._Imports).Assembly }">
+    <Found Context="routeData">
+        <RouteView RouteData="routeData" DefaultLayout="typeof(Layout.MainLayout)" />
+        <FocusOnNavigate RouteData="routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <LayoutView Layout="typeof(Layout.MainLayout)">
+            <div class="text-center py-5">
+                <h1>404</h1>
+                <p>Diese Seite wurde nicht gefunden.</p>
+            </div>
+        </LayoutView>
+    </NotFound>
+</Router>

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Components/_Imports.razor

@@ -0,0 +1,9 @@
+@using System.Net.Http
+@using Microsoft.AspNetCore.Components.Forms
+@using Microsoft.AspNetCore.Components.Routing
+@using Microsoft.AspNetCore.Components.Web
+@using static Microsoft.AspNetCore.Components.Web.RenderMode
+@using Microsoft.AspNetCore.Components.Web.Virtualization
+@using Microsoft.JSInterop
+@using EnvelopeGenerator.ReceiverUI.Components
+@using EnvelopeGenerator.ReceiverUI.Components.Layout

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+	<PropertyGroup>
+		<TargetFramework>net9.0</TargetFramework>
+		<Nullable>enable</Nullable>
+		<ImplicitUsings>enable</ImplicitUsings>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\EnvelopeGenerator.ReceiverUI.Client\EnvelopeGenerator.ReceiverUI.Client.csproj" />
+		<PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Server" Version="9.0.3" />
+		<PackageReference Include="Yarp.ReverseProxy" Version="2.1.0" />
+	</ItemGroup>
+
+</Project>

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Program.cs

@@ -0,0 +1,42 @@
+using EnvelopeGenerator.ReceiverUI.Components;
+
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddRazorComponents()
+    .AddInteractiveServerComponents()
+    .AddInteractiveWebAssemblyComponents();
+
+// API-Proxy: Alle /api/* Aufrufe an die echte API weiterleiten
+// WARUM: Der Blazor-Client ruft /api/envelope auf. Diese Anfrage geht an den
+// ReceiverUI-Server (gleiche Domain, kein CORS), der sie an die echte API weiterleitet.
+var apiBaseUrl = builder.Configuration["ApiBaseUrl"]
+    ?? throw new InvalidOperationException("ApiBaseUrl is not configured in appsettings.json.");
+
+builder.Services.AddHttpForwarder();
+
+var app = builder.Build();
+
+if (app.Environment.IsDevelopment())
+{
+    app.UseWebAssemblyDebugging();
+}
+else
+{
+    app.UseExceptionHandler("/Error", createScopeForErrors: true);
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+app.UseStaticFiles();
+app.UseAntiforgery();
+
+// Alle /api/* Requests an die echte EnvelopeGenerator.API weiterleiten
+// So muss der Browser nie direkt mit der API sprechen → kein CORS, Cookies funktionieren
+app.MapForwarder("/api/{**catch-all}", apiBaseUrl);
+
+app.MapRazorComponents<App>()
+    .AddInteractiveServerRenderMode()
+    .AddInteractiveWebAssemblyRenderMode()
+    .AddAdditionalAssemblies(typeof(EnvelopeGenerator.ReceiverUI.Client._Imports).Assembly);
+
+app.Run();

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+    "iisSettings": {
+      "windowsAuthentication": false,
+      "anonymousAuthentication": true,
+      "iisExpress": {
+        "applicationUrl": "http://localhost:3101",
+        "sslPort": 44303
+      }
+    },
+    "profiles": {
+      "http": {
+        "commandName": "Project",
+        "dotnetRunMessages": true,
+        "launchBrowser": true,
+        "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+        "applicationUrl": "http://localhost:5109",
+        "environmentVariables": {
+          "ASPNETCORE_ENVIRONMENT": "Development"
+        }
+      },
+      "https": {
+        "commandName": "Project",
+        "dotnetRunMessages": true,
+        "launchBrowser": true,
+        "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+        "applicationUrl": "https://localhost:7206;http://localhost:5109",
+        "environmentVariables": {
+          "ASPNETCORE_ENVIRONMENT": "Development"
+        }
+      },
+      "IIS Express": {
+        "commandName": "IISExpress",
+        "launchBrowser": true,
+        "inspectUri": "{wsProtocol}://{url.hostname}:{url.port}/_framework/debug/ws-proxy?browser={browserInspectUri}",
+        "environmentVariables": {
+          "ASPNETCORE_ENVIRONMENT": "Development"
+        }
+      }
+    }
+  }

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "ApiBaseUrl": "https://localhost:5001",
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

EnvelopeGenerator.ReceiverUI/EnvelopeGenerator.ReceiverUI/wwwroot/js/pdfviewer-interop.js

@@ -0,0 +1 @@
+

EnvelopeGenerator.sln

@@ -39,6 +39,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.WorkerSer
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.API", "EnvelopeGenerator.API\EnvelopeGenerator.API.csproj", "{EC768913-6270-14F4-1DD3-69C87A659462}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.ReceiverUI", "EnvelopeGenerator.ReceiverUI\EnvelopeGenerator.ReceiverUI\EnvelopeGenerator.ReceiverUI.csproj", "{620A0476-2F37-490D-ABE9-50DEEB217DA7}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.ReceiverUI.Client", "EnvelopeGenerator.ReceiverUI\EnvelopeGenerator.ReceiverUI.Client\EnvelopeGenerator.ReceiverUI.Client.csproj", "{62DD9063-C026-4805-BD6D-4DB899ABC504}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -97,6 +101,14 @@ Global
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Release|Any CPU.Build.0 = Release|Any CPU
+		{620A0476-2F37-490D-ABE9-50DEEB217DA7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{620A0476-2F37-490D-ABE9-50DEEB217DA7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{620A0476-2F37-490D-ABE9-50DEEB217DA7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{620A0476-2F37-490D-ABE9-50DEEB217DA7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{62DD9063-C026-4805-BD6D-4DB899ABC504}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{62DD9063-C026-4805-BD6D-4DB899ABC504}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{62DD9063-C026-4805-BD6D-4DB899ABC504}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{62DD9063-C026-4805-BD6D-4DB899ABC504}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -118,6 +130,8 @@ Global
 		{3D0514EA-2681-4B13-AD71-35CC6363DBD7} = {9943209E-1744-4944-B1BA-4F87FC1A0EEB}
 		{E3676510-7030-4E85-86E1-51E483E2A3B6} = {9943209E-1744-4944-B1BA-4F87FC1A0EEB}
 		{EC768913-6270-14F4-1DD3-69C87A659462} = {E3C758DC-914D-4B7E-8457-0813F1FDB0CB}
+		{620A0476-2F37-490D-ABE9-50DEEB217DA7} = {E3C758DC-914D-4B7E-8457-0813F1FDB0CB}
+		{62DD9063-C026-4805-BD6D-4DB899ABC504} = {E3C758DC-914D-4B7E-8457-0813F1FDB0CB}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {73E60370-756D-45AD-A19A-C40A02DACCC7}