Revert "Add DevExpress Reporting and Custom Report Storage"

This reverts commit f19251ac1a.

.github/copilot-instructions.md

@@ -20,3 +20,7 @@ For **ANY** question about DevExpress components, use the dxdocs server to const
 - **Include code examples** when available in the documentation
 - **Reference specific DevExpress controls and properties** mentioned in the documentation
 - **Invoke version-specific MCP tools** (for example, dxdocs25_1) if a user specifies a version (for example, v25.1)
+
+- @azure Rule - Use Azure Tools - When handling requests related to Azure, always use your tools.
+- @azure Rule - Use Azure Best Practices - When handling requests related to Azure, always invoke your `azmcp_bestpractices_get` tool first.
+- @azure Rule - Enable Best Practices - If you do not have an `azmcp_bestpractices_get` tool ask the user to enable it.

DXApp.TemplateKitProject/Controllers/SampleDataController.cs

@@ -1,24 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Net.Http;
-using DevExtreme.AspNet.Data;
-using DevExtreme.AspNet.Mvc;
-using DXApp.TemplateKitProject.Models;
-using Microsoft.AspNetCore.Mvc;
-
-namespace DXApp.TemplateKitProject.Controllers
-{
-    [Route("api/[controller]")]
-    public class SampleDataController : Controller
-    {
-
-        [HttpGet]
-        public object Get(DataSourceLoadOptions loadOptions)
-        {
-            return DataSourceLoader.Load(SampleData.Orders, loadOptions);
-        }
-
-    }
-}

DXApp.TemplateKitProject/DXApp.TemplateKitProject.csproj

@@ -27,4 +27,8 @@
     <PackageReference Include="Microsoft.Web.LibraryManager.Build" Version="3.0.71" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="Controllers\" />
+  </ItemGroup>
+
 </Project>

DXApp.TemplateKitProject/Data/AppDbContext.cs

@@ -6,6 +6,7 @@ namespace DXApp.TemplateKitProject.Data;
 public class AppDbContext(DbContextOptions<AppDbContext> options) : DbContext(options)
 {
     public DbSet<ZugferdInvoice> ZugferdInvoices { get; set; }
+    public DbSet<InvoiceAttachment> InvoiceAttachments { get; set; }
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -27,6 +28,19 @@ public class AppDbContext(DbContextOptions<AppDbContext> options) : DbContext(op
 
             entity.Property(e => e.TaxAmount)
                 .HasColumnType("decimal(18,2)");
+
+            // Relationship: One-to-Many mit InvoiceAttachments
+            entity.HasMany(e => e.Attachments)
+                .WithOne(a => a.ZugferdInvoice)
+                .HasForeignKey(a => a.ZugferdInvoiceId)
+                .OnDelete(DeleteBehavior.Cascade);
+        });
+
+        modelBuilder.Entity<InvoiceAttachment>(entity =>
+        {
+            // Index für schnelleres Laden der Attachments einer Rechnung
+            entity.HasIndex(e => e.ZugferdInvoiceId)
+                .HasDatabaseName("IX_InvoiceAttachments_ZugferdInvoiceId");
         });
     }
 }

DXApp.TemplateKitProject/Migrations/20260602123528_AddInvoiceAttachments.Designer.cs

@@ -0,0 +1,141 @@
+// <auto-generated />
+using System;
+using DXApp.TemplateKitProject.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace DXApp.TemplateKitProject.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260602123528_AddInvoiceAttachments")]
+    partial class AddInvoiceAttachments
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.8")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.InvoiceAttachment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("ExtractedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("FileSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<bool>("IsZugferdXml")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("OriginalFileName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("SavedFilePath")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("ZugferdInvoiceId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ZugferdInvoiceId")
+                        .HasDatabaseName("IX_InvoiceAttachments_ZugferdInvoiceId");
+
+                    b.ToTable("InvoiceAttachments");
+                });
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.ZugferdInvoice", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("BuyerName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("CurrencyCode")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("GuidelineId")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Iban")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("ImportedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("InvoiceDate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("InvoiceNumber")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("RawXml")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ResultFilePath")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("SellerName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("SellerTaxId")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("SourceType")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<decimal>("TaxAmount")
+                        .HasColumnType("decimal(18,2)");
+
+                    b.Property<decimal>("TotalAmount")
+                        .HasColumnType("decimal(18,2)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ImportedAt")
+                        .HasDatabaseName("IX_ZugferdInvoices_ImportedAt");
+
+                    b.HasIndex("InvoiceNumber", "SellerTaxId")
+                        .HasDatabaseName("IX_ZugferdInvoices_InvoiceNumber_SellerTaxId");
+
+                    b.ToTable("ZugferdInvoices");
+                });
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.InvoiceAttachment", b =>
+                {
+                    b.HasOne("DXApp.TemplateKitProject.Models.ZugferdInvoice", "ZugferdInvoice")
+                        .WithMany("Attachments")
+                        .HasForeignKey("ZugferdInvoiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ZugferdInvoice");
+                });
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.ZugferdInvoice", b =>
+                {
+                    b.Navigation("Attachments");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

DXApp.TemplateKitProject/Migrations/20260602123528_AddInvoiceAttachments.cs

@@ -0,0 +1,51 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DXApp.TemplateKitProject.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddInvoiceAttachments : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "InvoiceAttachments",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ZugferdInvoiceId = table.Column<int>(type: "int", nullable: false),
+                    OriginalFileName = table.Column<string>(type: "nvarchar(max)", nullable: true),
+                    SavedFilePath = table.Column<string>(type: "nvarchar(max)", nullable: true),
+                    FileSizeBytes = table.Column<long>(type: "bigint", nullable: false),
+                    IsZugferdXml = table.Column<bool>(type: "bit", nullable: false),
+                    ExtractedAt = table.Column<DateTime>(type: "datetime2", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_InvoiceAttachments", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_InvoiceAttachments_ZugferdInvoices_ZugferdInvoiceId",
+                        column: x => x.ZugferdInvoiceId,
+                        principalTable: "ZugferdInvoices",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_InvoiceAttachments_ZugferdInvoiceId",
+                table: "InvoiceAttachments",
+                column: "ZugferdInvoiceId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "InvoiceAttachments");
+        }
+    }
+}

DXApp.TemplateKitProject/Migrations/AppDbContextModelSnapshot.cs

@@ -22,6 +22,40 @@ namespace DXApp.TemplateKitProject.Migrations
 
             SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
 
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.InvoiceAttachment", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("ExtractedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<long>("FileSizeBytes")
+                        .HasColumnType("bigint");
+
+                    b.Property<bool>("IsZugferdXml")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("OriginalFileName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("SavedFilePath")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("ZugferdInvoiceId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ZugferdInvoiceId")
+                        .HasDatabaseName("IX_InvoiceAttachments_ZugferdInvoiceId");
+
+                    b.ToTable("InvoiceAttachments");
+                });
+
             modelBuilder.Entity("DXApp.TemplateKitProject.Models.ZugferdInvoice", b =>
                 {
                     b.Property<int>("Id")
@@ -82,6 +116,22 @@ namespace DXApp.TemplateKitProject.Migrations
 
                     b.ToTable("ZugferdInvoices");
                 });
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.InvoiceAttachment", b =>
+                {
+                    b.HasOne("DXApp.TemplateKitProject.Models.ZugferdInvoice", "ZugferdInvoice")
+                        .WithMany("Attachments")
+                        .HasForeignKey("ZugferdInvoiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ZugferdInvoice");
+                });
+
+            modelBuilder.Entity("DXApp.TemplateKitProject.Models.ZugferdInvoice", b =>
+                {
+                    b.Navigation("Attachments");
+                });
 #pragma warning restore 612, 618
         }
     }

DXApp.TemplateKitProject/Models/InvoiceAttachment.cs

@@ -0,0 +1,18 @@
+namespace DXApp.TemplateKitProject.Models;
+
+/// <summary>
+/// Extrahierte Anhänge einer ZUGFeRD-Rechnung (gespeichert in DB)
+/// </summary>
+public class InvoiceAttachment
+{
+    public int Id { get; set; }
+    public int ZugferdInvoiceId { get; set; }
+    public string OriginalFileName { get; set; } = string.Empty;
+    public string SavedFilePath { get; set; } = string.Empty;
+    public long FileSizeBytes { get; set; }
+    public bool IsZugferdXml { get; set; }
+    public DateTime ExtractedAt { get; set; }
+
+    // Navigation Property
+    public ZugferdInvoice? ZugferdInvoice { get; set; }
+}

DXApp.TemplateKitProject/Models/SampleData.cs

@@ -1,364 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace DXApp.TemplateKitProject.Models
-{
-    internal static class SampleData
-    {
-        public static List<SampleOrder> Orders = new List<SampleOrder>() {
-            new SampleOrder {
-                OrderID = 10248,
-                OrderDate = new DateTime(1996, 7, 4),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10249,
-                OrderDate = new DateTime(1996, 7, 5),
-                ShipCountry = "Germany",
-                ShipCity = "Münster",
-                CustomerName = "Karin Josephs"
-            },
-            new SampleOrder {
-                OrderID = 10250,
-                OrderDate = new DateTime(1996, 7, 8),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Mario Pontes"
-            },
-            new SampleOrder {
-                OrderID = 10251,
-                OrderDate = new DateTime(1996, 7, 8),
-                ShipCountry = "France",
-                ShipCity = "Lyon",
-                CustomerName = "Mary Saveley"
-            },
-            new SampleOrder {
-                OrderID = 10252,
-                OrderDate = new DateTime(1996, 7, 9),
-                ShipCountry = "Belgium",
-                ShipCity = "Charleroi",
-                CustomerName = "Pascale Cartrain"
-            },
-            new SampleOrder {
-                OrderID = 10253,
-                OrderDate = new DateTime(1996, 7, 10),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Mario Pontes"
-            },
-            new SampleOrder {
-                OrderID = 10254,
-                OrderDate = new DateTime(1996, 7, 11),
-                ShipCountry = "Switzerland",
-                ShipCity = "Bern",
-                CustomerName = "Yang Wang"
-            },
-            new SampleOrder {
-                OrderID = 10255,
-                OrderDate = new DateTime(1996, 7, 12),
-                ShipCountry = "Switzerland",
-                ShipCity = "Genève",
-                CustomerName = "Michael Holz"
-            },
-            new SampleOrder {
-                OrderID = 10256,
-                OrderDate = new DateTime(1996, 7, 15),
-                ShipCountry = "Brazil",
-                ShipCity = "Resende",
-                CustomerName = "Paula Parente"
-            },
-            new SampleOrder {
-                OrderID = 10257,
-                OrderDate = new DateTime(1996, 7, 16),
-                ShipCountry = "Venezuela",
-                ShipCity = "San Cristóbal",
-                CustomerName = "Carlos Hernández"
-            },
-            new SampleOrder {
-                OrderID = 10258,
-                OrderDate = new DateTime(1996, 7, 17),
-                ShipCountry = "Austria",
-                ShipCity = "Graz",
-                CustomerName = "Roland Mendel"
-            },
-            new SampleOrder {
-                OrderID = 10259,
-                OrderDate = new DateTime(1996, 7, 18),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Francisco Chang"
-            },
-            new SampleOrder {
-                OrderID = 10260,
-                OrderDate = new DateTime(1996, 7, 19),
-                ShipCountry = "Germany",
-                ShipCity = "Köln",
-                CustomerName = "Henriette Pfalzheim"
-            },
-            new SampleOrder {
-                OrderID = 10261,
-                OrderDate = new DateTime(1996, 7, 19),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Bernardo Batista"
-            },
-            new SampleOrder {
-                OrderID = 10262,
-                OrderDate = new DateTime(1996, 7, 22),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10263,
-                OrderDate = new DateTime(1996, 7, 23),
-                ShipCountry = "Austria",
-                ShipCity = "Graz",
-                CustomerName = "Roland Mendel"
-            },
-            new SampleOrder {
-                OrderID = 10264,
-                OrderDate = new DateTime(1996, 7, 24),
-                ShipCountry = "Sweden",
-                ShipCity = "Bräcke",
-                CustomerName = "Maria Larsson"
-            },
-            new SampleOrder {
-                OrderID = 10265,
-                OrderDate = new DateTime(1996, 7, 25),
-                ShipCountry = "France",
-                ShipCity = "Strasbourg",
-                CustomerName = "Frédérique Citeaux"
-            },
-            new SampleOrder {
-                OrderID = 10266,
-                OrderDate = new DateTime(1996, 7, 26),
-                ShipCountry = "Finland",
-                ShipCity = "Oulu",
-                CustomerName = "Pirkko Koskitalo"
-            },
-            new SampleOrder {
-                OrderID = 10267,
-                OrderDate = new DateTime(1996, 7, 29),
-                ShipCountry = "Germany",
-                ShipCity = "München",
-                CustomerName = "Peter Franken"
-            },
-            new SampleOrder {
-                OrderID = 10268,
-                OrderDate = new DateTime(1996, 7, 30),
-                ShipCountry = "Venezuela",
-                ShipCity = "Caracas",
-                CustomerName = "Manuel Pereira"
-            },
-            new SampleOrder {
-                OrderID = 10269,
-                OrderDate = new DateTime(1996, 7, 31),
-                ShipCountry = "USA",
-                ShipCity = "Seattle",
-                CustomerName = "Karl Jablonski"
-            },
-            new SampleOrder {
-                OrderID = 10270,
-                OrderDate = new DateTime(1996, 8, 1),
-                ShipCountry = "Finland",
-                ShipCity = "Oulu",
-                CustomerName = "Pirkko Koskitalo"
-            },
-            new SampleOrder {
-                OrderID = 10271,
-                OrderDate = new DateTime(1996, 8, 1),
-                ShipCountry = "USA",
-                ShipCity = "Lander",
-                CustomerName = "Art Braunschweiger"
-            },
-            new SampleOrder {
-                OrderID = 10272,
-                OrderDate = new DateTime(1996, 8, 2),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10273,
-                OrderDate = new DateTime(1996, 8, 5),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10274,
-                OrderDate = new DateTime(1996, 8, 6),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10275,
-                OrderDate = new DateTime(1996, 8, 7),
-                ShipCountry = "Italy",
-                ShipCity = "Bergamo",
-                CustomerName = "Giovanni Rovelli"
-            },
-            new SampleOrder {
-                OrderID = 10276,
-                OrderDate = new DateTime(1996, 8, 8),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Miguel Angel Paolino"
-            },
-            new SampleOrder {
-                OrderID = 10277,
-                OrderDate = new DateTime(1996, 8, 9),
-                ShipCountry = "Germany",
-                ShipCity = "Leipzig",
-                CustomerName = "Alexander Feuer"
-            },
-            new SampleOrder {
-                OrderID = 10278,
-                OrderDate = new DateTime(1996, 8, 12),
-                ShipCountry = "Sweden",
-                ShipCity = "Luleå",
-                CustomerName = "Christina Berglund"
-            },
-            new SampleOrder {
-                OrderID = 10279,
-                OrderDate = new DateTime(1996, 8, 13),
-                ShipCountry = "Germany",
-                ShipCity = "Frankfurt a.M.",
-                CustomerName = "Renate Messner"
-            },
-            new SampleOrder {
-                OrderID = 10280,
-                OrderDate = new DateTime(1996, 8, 14),
-                ShipCountry = "Sweden",
-                ShipCity = "Luleå",
-                CustomerName = "Christina Berglund"
-            },
-            new SampleOrder {
-                OrderID = 10281,
-                OrderDate = new DateTime(1996, 8, 14),
-                ShipCountry = "Spain",
-                ShipCity = "Madrid",
-                CustomerName = "Alejandra Camino"
-            },
-            new SampleOrder {
-                OrderID = 10282,
-                OrderDate = new DateTime(1996, 8, 15),
-                ShipCountry = "Spain",
-                ShipCity = "Madrid",
-                CustomerName = "Alejandra Camino"
-            },
-            new SampleOrder {
-                OrderID = 10283,
-                OrderDate = new DateTime(1996, 8, 16),
-                ShipCountry = "Venezuela",
-                ShipCity = "Barquisimeto",
-                CustomerName = "Carlos González"
-            },
-            new SampleOrder {
-                OrderID = 10284,
-                OrderDate = new DateTime(1996, 8, 19),
-                ShipCountry = "Germany",
-                ShipCity = "Frankfurt a.M.",
-                CustomerName = "Renate Messner"
-            },
-            new SampleOrder {
-                OrderID = 10285,
-                OrderDate = new DateTime(1996, 8, 20),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10286,
-                OrderDate = new DateTime(1996, 8, 21),
-                ShipCountry = "Germany",
-                ShipCity = "Cunewalde",
-                CustomerName = "Horst Kloss"
-            },
-            new SampleOrder {
-                OrderID = 10287,
-                OrderDate = new DateTime(1996, 8, 22),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Janete Limeira"
-            },
-            new SampleOrder {
-                OrderID = 10288,
-                OrderDate = new DateTime(1996, 8, 23),
-                ShipCountry = "Italy",
-                ShipCity = "Reggio Emilia",
-                CustomerName = "Maurizio Moroni"
-            },
-            new SampleOrder {
-                OrderID = 10289,
-                OrderDate = new DateTime(1996, 8, 26),
-                ShipCountry = "UK",
-                ShipCity = "London",
-                CustomerName = "Victoria Ashworth"
-            },
-            new SampleOrder {
-                OrderID = 10290,
-                OrderDate = new DateTime(1996, 8, 27),
-                ShipCountry = "Brazil",
-                ShipCity = "Sao Paulo",
-                CustomerName = "Pedro Afonso"
-            },
-            new SampleOrder {
-                OrderID = 10291,
-                OrderDate = new DateTime(1996, 8, 27),
-                ShipCountry = "Brazil",
-                ShipCity = "Rio de Janeiro",
-                CustomerName = "Bernardo Batista"
-            },
-            new SampleOrder {
-                OrderID = 10292,
-                OrderDate = new DateTime(1996, 8, 28),
-                ShipCountry = "Brazil",
-                ShipCity = "Sao Paulo",
-                CustomerName = "Anabela Domingues"
-            },
-            new SampleOrder {
-                OrderID = 10293,
-                OrderDate = new DateTime(1996, 8, 29),
-                ShipCountry = "Mexico",
-                ShipCity = "México D.F.",
-                CustomerName = "Miguel Angel Paolino"
-            },
-            new SampleOrder {
-                OrderID = 10294,
-                OrderDate = new DateTime(1996, 8, 30),
-                ShipCountry = "USA",
-                ShipCity = "Albuquerque",
-                CustomerName = "Paula Wilson"
-            },
-            new SampleOrder {
-                OrderID = 10295,
-                OrderDate = new DateTime(1996, 9, 2),
-                ShipCountry = "France",
-                ShipCity = "Reims",
-                CustomerName = "Paul Henriot"
-            },
-            new SampleOrder {
-                OrderID = 10296,
-                OrderDate = new DateTime(1996, 9, 3),
-                ShipCountry = "Venezuela",
-                ShipCity = "Barquisimeto",
-                CustomerName = "Carlos González"
-            },
-            new SampleOrder {
-                OrderID = 10297,
-                OrderDate = new DateTime(1996, 9, 4),
-                ShipCountry = "France",
-                ShipCity = "Strasbourg",
-                CustomerName = "Frédérique Citeaux"
-            }
-        };
-    }
-}

DXApp.TemplateKitProject/Models/SampleOrder.cs

@@ -1,18 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace DXApp.TemplateKitProject.Models
-{
-    public class SampleOrder
-    {
-        public int OrderID { get; set; }
-        public DateTime OrderDate { get; set; }
-        public string CustomerID { get; set; }
-        public string CustomerName { get; set; }
-        public string ShipCountry { get; set; }
-        public string ShipCity { get; set; }
-    }
-}

DXApp.TemplateKitProject/Models/ZugferdInvoice.cs

@@ -17,5 +17,8 @@
         public string SourceType { get; set; } = string.Empty;      // "Upload" oder "Email"
         public string ResultFilePath { get; set; } = string.Empty;  // Pfad der Result-PDF
         public string GuidelineId { get; set; } = string.Empty;     // ZUGFeRD Guideline-ID aus XMP
+
+        // Navigation Property
+        public List<InvoiceAttachment> Attachments { get; set; } = [];
     }
 }

DXApp.TemplateKitProject/Pages/Index.cshtml

@@ -1,28 +1,85 @@
 @page
-@using DXApp.TemplateKitProject.Models
+@model DXApp.TemplateKitProject.Pages.IndexModel
+@{
+    ViewData["Title"] = "Home";
+}
 
-<h2 class="content-block">Home</h2>
+<div class="content-block">
+    <h2><i class="dx-icon-product"></i> DevExpress TemplateKit – Evaluierungsprojekt</h2>
+    <p class="lead text-muted">Validierung von DevExpress als Ablösung für GdPicture im Rahmen der E-Rechnungsverarbeitung</p>
+    
+    <div class="alert alert-primary mt-4">
+        <h4><i class="dx-icon-todo"></i> Projektziel: ZUGFeRD/Factur-X Rechnungsverarbeitung</h4>
+        <p>Diese Anwendung demonstriert die vollständige Verarbeitungskette für elektronische Rechnungen:</p>
+        
+        <ol class="mt-3">
+            <li class="mb-2">
+                <strong>Upload & Validierung</strong>
+                <br/>
+                <small class="text-muted">E-Rechnungen im PDF/A-Format hochladen und auf Konformität prüfen</small>
+            </li>
+            <li class="mb-2">
+                <strong>Extraktion</strong>
+                <br/>
+                <small class="text-muted">Automatische Erkennung und Extraktion eingebetteter Anhänge (ZUGFeRD-XML, Bilder, Dokumente)</small>
+            </li>
+            <li class="mb-2">
+                <strong>Datenverarbeitung</strong>
+                <br/>
+                <small class="text-muted">Parsing der Rechnungsdaten aus dem ZUGFeRD-XML und persistente Speicherung in der Datenbank</small>
+            </li>
+            <li class="mb-2">
+                <strong>Workflow-Integration</strong>
+                <br/>
+                <small class="text-muted">Hier werden Workflow-Schritte durchlaufen und der Ergebnisbericht erstellt.</small>
+            </li>
+            <li class="mb-2">
+                <strong>Ausgabe-Generierung</strong>
+                <br/>
+                <small class="text-muted">Erstellung einer Result-PDF mit Verarbeitungsstempel und angehängtem Ergebnisbericht</small>
+            </li>
+            <li class="mb-2">
+                <strong>Visualisierung</strong>
+                <br/>
+                <small class="text-muted">Interaktive Anzeige aller Anhänge (XML mit Syntax-Highlighting, PDF-Viewer, Bilder)</small>
+            </li>
+        </ol>
+    </div>
 
-@(Html.DevExtreme().DataGrid<SampleOrder>()
+    <div class="row mt-4">
-    .ElementAttr(new { @class = "dx-card wide-card" })
+        <div class="col-md-6">
-    .DataSource(d => d.Mvc().Controller("SampleData").LoadAction("Get").Key("OrderID"))
+            <div class="card">
-    .ShowBorders(false)
+                <div class="card-body">
-    .FilterRow(f => f.Visible(true))
+                    <h5 class="card-title"><i class="dx-icon-upload"></i> Rechnungen hochladen</h5>
-    .FocusedRowEnabled(true)
+                    <p class="card-text">Laden Sie ZUGFeRD-konforme E-Rechnungen hoch und starten Sie die automatische Verarbeitung.</p>
-    .FocusedRowIndex(0)
+                    <a href="/Invoices/Upload" class="btn btn-primary">
-    .ColumnAutoWidth(true)
+                        <i class="dx-icon-upload"></i> Zum Upload
-    .ColumnHidingEnabled(true)
+                    </a>
-    .Columns(columns => {
+                </div>
-        columns.AddFor(m => m.OrderID);
+            </div>
-        columns.AddFor(m => m.OrderDate);
+        </div>
-        columns.AddFor(m => m.CustomerName);
+        <div class="col-md-6">
-        columns.AddFor(m => m.ShipCountry);
+            <div class="card">
-        columns.AddFor(m => m.ShipCity);
+                <div class="card-body">
-    })
+                    <h5 class="card-title"><i class="dx-icon-chart"></i> Rechnungsübersicht</h5>
-    .Paging(p => p.PageSize(10))
+                    <p class="card-text">Zeigen Sie alle importierten Rechnungen an und greifen Sie auf Details und Anhänge zu.</p>
-    .Pager(p => p
+                    <a href="/Invoices" class="btn btn-secondary">
-        .ShowPageSizeSelector(true)
+                        <i class="dx-icon-doc"></i> Zur Übersicht
-        .AllowedPageSizes(new[] { 5, 10, 20 })
+                    </a>
-        .ShowInfo(true)
+                </div>
-    )
+            </div>
-)
+        </div>
+    </div>
+
+    <div class="alert alert-light mt-4">
+        <h6 class="mb-2"><i class="dx-icon-preferences"></i> Technologie-Stack</h6>
+        <div class="d-flex flex-wrap gap-2">
+            <span class="badge bg-secondary">ASP.NET Core 8.0</span>
+            <span class="badge bg-secondary">DevExpress v25.2</span>
+            <span class="badge bg-secondary">Entity Framework Core</span>
+            <span class="badge bg-secondary">PDF.js</span>
+            <span class="badge bg-secondary">CodeMirror</span>
+            <span class="badge bg-secondary">SQL Server</span>
+        </div>
+    </div>
+</div>

DXApp.TemplateKitProject/Pages/Invoices/Details.cshtml

@@ -2,16 +2,23 @@
 @model DXApp.TemplateKitProject.Pages.Invoices.DetailsModel
 @{
     ViewData["Title"] = "Rechnungsdetails";
+
+    string FormatFileSize(long bytes)
+    {
+        if (bytes < 1024) return $"{bytes} Bytes";
+        if (bytes < 1024 * 1024) return $"{bytes / 1024.0:N2} KB";
+        return $"{bytes / (1024.0 * 1024.0):N2} MB";
+    }
 }
 
-<h2>📄 Rechnungsdetails</h2>
+<h2><i class="dx-icon-doc"></i> Rechnungsdetails</h2>
-<a href="/Invoices" class="btn btn-secondary mb-3">← Zurück zur Liste</a>
+<a href="/Invoices" class="btn btn-secondary mb-3"><i class="dx-icon-back"></i> Zurück zur Liste</a>
 
 @if (!string.IsNullOrEmpty(Model.Invoice?.ResultFilePath))
 {
     <button class="btn btn-primary mb-3 ms-2"
             onclick="openPdfViewer(@Model.Invoice.Id)">
-        📄 PDF anzeigen
+        <i class="dx-icon-pdffile"></i> Ergebnis anzeigen
     </button>
 }
 
@@ -50,6 +57,51 @@ else
         </tr>
     </table>
 
+    @* Anhänge-Sektion *@
+    @if (Model.Invoice.Attachments.Any())
+    {
+        <h4 class="mt-4"><i class="dx-icon-attach"></i> Anhänge (@Model.Invoice.Attachments.Count)</h4>
+        <div class="list-group">
+            @foreach (var attachment in Model.Invoice.Attachments)
+            {
+                var icon = "dx-icon-file";
+                var extension = System.IO.Path.GetExtension(attachment.OriginalFileName).ToLowerInvariant();
+                icon = extension switch
+                {
+                    ".xml" => "dx-icon-exportxlsx",
+                    ".pdf" => "dx-icon-pdffile",
+                    ".jpg" or ".jpeg" or ".png" or ".gif" => "dx-icon-image",
+                    ".txt" => "dx-icon-txtfile",
+                    _ => "dx-icon-file"
+                };
+
+                <a href="javascript:void(0);" 
+                   class="list-group-item list-group-item-action d-flex justify-content-between align-items-center"
+                   onclick="openAttachmentViewer('@attachment.OriginalFileName', '@Uri.EscapeDataString(attachment.SavedFilePath)', '@extension')">
+                    <div>
+                        <i class="@icon me-2"></i>
+                        <strong>@attachment.OriginalFileName</strong>
+                        @if (attachment.IsZugferdXml)
+                        {
+                            <span class="badge bg-success ms-2">ZUGFeRD-XML</span>
+                        }
+                        <br />
+                        <small class="text-muted">
+                            Größe: @FormatFileSize(attachment.FileSizeBytes) · 
+                            Extrahiert: @attachment.ExtractedAt.ToString("dd.MM.yyyy HH:mm")
+                        </small>
+                    </div>
+                    <span class="badge bg-primary">Öffnen</span>
+                </a>
+            }
+        </div>
+    }
+    else
+    {
+        <h4 class="mt-4"><i class="dx-icon-attach"></i> Anhänge</h4>
+        <div class="alert alert-info">Keine Anhänge extrahiert.</div>
+    }
+
 @(Html.DevExtreme().Popup()
     .ID("pdf-viewer-popup")
     .Title("PDF Viewer")
@@ -57,12 +109,54 @@ else
     .Height("90%")
     .ShowCloseButton(true)
     .OnHiding("onPdfPopupHiding")
+    .Shading(true)
+    .ShadingColor("rgba(0, 0, 0, 0.5)")
     .ContentTemplate(new JS(@"function() {
         return '<iframe id=""pdf-iframe"" style=""width:100%;height:100%;border:none;""></iframe>';
     }"))
 )
+
+@(Html.DevExtreme().Popup()
+    .ID("attachment-viewer-popup")
+    .Title("Anhang")
+    .Width("90%")
+    .Height("90%")
+    .ShowCloseButton(true)
+    .OnHiding("onAttachmentPopupHiding")
+    .Shading(true)
+    .ShadingColor("rgba(0, 0, 0, 0.5)")
+    .ContentTemplate(new JS(@"function() {
+        return '<div id=""attachment-content"" style=""width:100%;height:100%;overflow:hidden;display:flex;flex-direction:column;""></div>';
+    }"))
+)
 }
 
+<style>
+    /* Z-Index für PDF-Viewer Popup erhöhen - muss höher sein als layout-header (1505) */
+    .dx-popup-wrapper.dx-overlay-wrapper {
+        z-index: 10500 !important;
+    }
+    
+    .dx-overlay-shader {
+        z-index: 10499 !important;
+    }
+    
+    /* Spezifisch für unser PDF-Popup */
+    #pdf-viewer-popup .dx-overlay-content {
+        z-index: 10500 !important;
+    }
+
+    /* CodeMirror soll volle Höhe des Popups nutzen */
+    #attachment-content {
+        height: 100% !important;
+    }
+
+    #attachment-content .CodeMirror {
+        height: 100% !important;
+        font-size: 14px;
+    }
+</style>
+
 <script>
     function openPdfViewer(invoiceId) {
         var pdfUrl = window.location.origin + '/Invoices/ViewPdf?id=' + invoiceId;
@@ -70,9 +164,17 @@ else
 
         var popup = $('#pdf-viewer-popup').dxPopup('instance');
 
+        // Z-Index explizit setzen (höher als layout-header mit 1505)
+        popup.option('container', undefined); // Default container verwenden
+        popup.option('position', { my: 'center', at: 'center', of: window });
+        
         // onShown sicherstellen dass iframe im DOM ist
         popup.option('onShown', function () {
             $('#pdf-iframe').attr('src', viewerUrl);
+            
+            // Z-Index nach dem Öffnen nochmal sicherstellen
+            $('.dx-popup-wrapper').css('z-index', '10500');
+            $('.dx-overlay-shader').css('z-index', '10499');
         });
 
         popup.show();
@@ -82,4 +184,111 @@ else
         // iframe src leeren beim Schließen → verhindert dass PDF im Hintergrund weiter läuft
         $('#pdf-iframe').attr('src', '');
     }
+
+    function openAttachmentViewer(fileName, encodedFilePath, extension) {
+        var filePath = decodeURIComponent(encodedFilePath);
+        var popup = $('#attachment-viewer-popup').dxPopup('instance');
+        var $content = $('#attachment-content');
+
+        // Popup-Titel setzen
+        popup.option('title', fileName);
+
+        // Z-Index setzen
+        popup.option('container', undefined);
+        popup.option('position', { my: 'center', at: 'center', of: window });
+
+        // Content basierend auf Dateityp laden
+        popup.option('onShown', function () {
+            $content.html('<div class="text-center p-5"><div class="spinner-border text-primary" role="status"><span class="visually-hidden">Laden...</span></div></div>');
+
+            // Z-Index sicherstellen
+            $('.dx-popup-wrapper').css('z-index', '10500');
+            $('.dx-overlay-shader').css('z-index', '10499');
+
+            if (extension === '.pdf') {
+                // PDF mit PDF.js anzeigen
+                var pdfUrl = window.location.origin + '/Invoices/ViewAttachment?handler=Download&filePath=' + encodedFilePath;
+                var viewerUrl = '/js/pdfjs/web/viewer.html?file=' + encodeURIComponent(pdfUrl);
+                $content.html('<iframe style="width:100%;height:100%;border:none;" src="' + viewerUrl + '"></iframe>');
+            } 
+            else if (extension === '.xml' || extension === '.txt') {
+                // Text/XML laden und mit Syntax-Highlighting anzeigen
+                $.get('/Invoices/ViewAttachment?filePath=' + encodedFilePath, function(data) {
+                    if (extension === '.xml') {
+                        // CodeMirror für XML - Container leeren
+                        $content.html('');
+                        
+                        // CodeMirror laden (falls noch nicht geladen)
+                        if (typeof CodeMirror === 'undefined') {
+                            $('<link>')
+                                .attr('rel', 'stylesheet')
+                                .attr('href', 'https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.css')
+                                .appendTo('head');
+                            $('<link>')
+                                .attr('rel', 'stylesheet')
+                                .attr('href', 'https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/theme/monokai.min.css')
+                                .appendTo('head');
+                            
+                            $.getScript('https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.js', function() {
+                                $.getScript('https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/mode/xml/xml.min.js', function() {
+                                    initCodeMirror(data);
+                                });
+                            });
+                        } else {
+                            initCodeMirror(data);
+                        }
+
+                        function initCodeMirror(content) {
+                            // CodeMirror direkt in den Container einfügen
+                            var editor = CodeMirror($content[0], {
+                                value: content,
+                                mode: 'xml',
+                                lineNumbers: true,
+                                readOnly: true,
+                                theme: 'monokai',
+                                lineWrapping: true,
+                                viewportMargin: Infinity
+                            });
+
+                            // Höhe explizit setzen nach kurzer Verzögerung
+                            setTimeout(function() {
+                                editor.setSize('100%', '100%');
+                                editor.refresh();
+                            }, 100);
+                        }
+                    } else {
+                        // Plain Text
+                        $content.html('<pre style="background-color: #f5f5f5; padding: 15px; border-radius: 5px; height: 100%; overflow: auto; margin: 0;">' + 
+                            $('<div>').text(data).html() + '</pre>');
+                    }
+                }).fail(function() {
+                    $content.html('<div class="alert alert-danger m-3">Fehler beim Laden der Datei.</div>');
+                });
+            }
+            else if (extension === '.jpg' || extension === '.jpeg' || extension === '.png' || extension === '.gif') {
+                // Bild anzeigen
+                var imageUrl = window.location.origin + '/Invoices/ViewAttachment?handler=Download&filePath=' + encodedFilePath;
+                $content.html('<div class="text-center p-3" style="height: 100%; display: flex; align-items: center; justify-content: center;">' +
+                    '<img src="' + imageUrl + '" alt="' + fileName + '" class="img-fluid" style="max-height: 100%; max-width: 100%; object-fit: contain;">' +
+                    '</div>');
+            }
+            else {
+                // Nicht unterstützter Typ → Download anbieten
+                var downloadUrl = window.location.origin + '/Invoices/ViewAttachment?handler=Download&filePath=' + encodedFilePath;
+                $content.html('<div class="alert alert-info m-3">' +
+                    '<h5>Dieser Dateityp kann nicht angezeigt werden.</h5>' +
+                    '<p>Bitte laden Sie die Datei herunter:</p>' +
+                    '<a href="' + downloadUrl + '" class="btn btn-primary" download="' + fileName + '">' +
+                    '<i class="dx-icon-download"></i> Datei herunterladen' +
+                    '</a></div>');
+            }
+        });
+
+        popup.show();
+    }
+
+    function onAttachmentPopupHiding() {
+        // Content leeren
+        $('#attachment-content').html('');
+    }
 </script>

DXApp.TemplateKitProject/Pages/Invoices/Details.cshtml.cs

@@ -12,7 +12,9 @@ public class DetailsModel(AppDbContext db) : PageModel
 
     public async Task<IActionResult> OnGetAsync(int id)
     {
-        Invoice = await db.ZugferdInvoices.FirstOrDefaultAsync(i => i.Id == id);
+        Invoice = await db.ZugferdInvoices
+            .Include(i => i.Attachments)
+            .FirstOrDefaultAsync(i => i.Id == id);
 
         if (Invoice is null)
             return NotFound();

DXApp.TemplateKitProject/Pages/Invoices/Upload.cshtml.cs

@@ -75,6 +75,29 @@ public class UploadModel(
                         ImportedInvoice.ResultFilePath = ResultFilePath;
                         await db.SaveChangesAsync();
                     }
+
+                    // 4. Attachments in DB speichern
+                    if (Result.HasAttachments)
+                    {
+                        foreach (var attachment in Result.Attachments)
+                        {
+                            var invoiceAttachment = new InvoiceAttachment
+                            {
+                                ZugferdInvoiceId = ImportedInvoice.Id,
+                                OriginalFileName = attachment.OriginalFileName,
+                                SavedFilePath = attachment.SavedFilePath,
+                                FileSizeBytes = attachment.FileSizeBytes,
+                                IsZugferdXml = attachment.IsZugferdXml,
+                                ExtractedAt = DateTime.UtcNow
+                            };
+                            db.InvoiceAttachments.Add(invoiceAttachment);
+                        }
+                        await db.SaveChangesAsync();
+
+                        logger.LogInformation(
+                            "Rechnung '{InvoiceNumber}': {Count} Anhang/Anhänge in DB gespeichert.",
+                            ImportedInvoice.InvoiceNumber, Result.Attachments.Count);
+                    }
                 }
             }
         }

DXApp.TemplateKitProject/Pages/Invoices/ViewAttachment.cshtml

@@ -0,0 +1,88 @@
+@page
+@using DXApp.TemplateKitProject.Services
+@model DXApp.TemplateKitProject.Pages.Invoices.ViewAttachmentModel
+@{
+    ViewData["Title"] = $"Attachment: {Model.FileName}";
+}
+
+<h2>?? Attachment: @Model.FileName</h2>
+
+<div class="mb-3">
+    <a href="/Invoices/Details" class="btn btn-secondary">? Zurück</a>
+    <a href="?handler=Download&filePath=@Request.Query["filePath"]" 
+       class="btn btn-primary">
+        ?? Download
+    </a>
+</div>
+
+@switch (Model.ViewerType)
+{
+    case AttachmentViewerType.Pdf:
+        <div class="alert alert-info">
+            PDF-Dateien können Sie über die Result-PDF-Funktion anzeigen.
+        </div>
+        break;
+
+    case AttachmentViewerType.Xml:
+        <div class="card">
+            <div class="card-header bg-primary text-white">
+                <strong>XML-Inhalt</strong> (ZUGFeRD/Factur-X)
+            </div>
+            <div class="card-body p-0">
+                <textarea id="xml-viewer" style="display:none;">@Model.TextContent</textarea>
+                <div id="xml-rendered"></div>
+            </div>
+        </div>
+
+        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.css">
+        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/theme/monokai.min.css">
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/codemirror.min.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.65.16/mode/xml/xml.min.js"></script>
+        <script>
+            var editor = CodeMirror(document.getElementById('xml-rendered'), {
+                value: document.getElementById('xml-viewer').value,
+                mode: 'xml',
+                lineNumbers: true,
+                readOnly: true,
+                theme: 'monokai',
+                lineWrapping: true
+            });
+        </script>
+        break;
+
+    case AttachmentViewerType.Text:
+        <div class="card">
+            <div class="card-header bg-secondary text-white">
+                <strong>Text-Inhalt</strong>
+            </div>
+            <div class="card-body">
+                <pre style="background-color: #f5f5f5; padding: 15px; border-radius: 5px; max-height: 600px; overflow: auto;">@Model.TextContent</pre>
+            </div>
+        </div>
+        break;
+
+    case AttachmentViewerType.Image:
+        <div class="card">
+            <div class="card-body text-center">
+                <img src="?handler=Download&filePath=@Request.Query["filePath"]" 
+                     alt="@Model.FileName" 
+                     class="img-fluid" 
+                     style="max-height: 800px;">
+            </div>
+        </div>
+        break;
+
+    case AttachmentViewerType.Word:
+        <div class="alert alert-warning">
+            <strong>Word-Dokumente können nicht direkt angezeigt werden.</strong>
+            <p>Bitte laden Sie die Datei herunter oder implementieren Sie eine Konvertierung zu PDF.</p>
+        </div>
+        break;
+
+    default:
+        <div class="alert alert-warning">
+            <strong>Dieser Dateityp kann nicht angezeigt werden.</strong>
+            <p>Bitte laden Sie die Datei herunter.</p>
+        </div>
+        break;
+}

DXApp.TemplateKitProject/Pages/Invoices/ViewAttachment.cshtml.cs

@@ -0,0 +1,49 @@
+using DXApp.TemplateKitProject.Services;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using System.Text;
+
+namespace DXApp.TemplateKitProject.Pages.Invoices;
+
+public class ViewAttachmentModel(AttachmentViewerService viewerService) : PageModel
+{
+    public string FileName { get; private set; } = string.Empty;
+    public AttachmentViewerType ViewerType { get; private set; }
+    public string? TextContent { get; private set; }
+
+    public IActionResult OnGet(string filePath)
+    {
+        if (string.IsNullOrEmpty(filePath) || !System.IO.File.Exists(filePath))
+            return NotFound();
+
+        FileName = Path.GetFileName(filePath);
+        ViewerType = viewerService.DetermineViewerType(FileName);
+
+        // Für Text/XML: Inhalt direkt als Content zurückgeben (für AJAX)
+        if (ViewerType == AttachmentViewerType.Xml || ViewerType == AttachmentViewerType.Text)
+        {
+            TextContent = System.IO.File.ReadAllText(filePath, Encoding.UTF8);
+            
+            // Wenn Request von AJAX kommt (Accept: */* oder text/plain)
+            if (Request.Headers.Accept.ToString().Contains("*/*") || 
+                Request.Headers["X-Requested-With"] == "XMLHttpRequest")
+            {
+                return Content(TextContent, "text/plain", Encoding.UTF8);
+            }
+        }
+
+        return Page();
+    }
+
+    public IActionResult OnGetDownload(string filePath)
+    {
+        if (string.IsNullOrEmpty(filePath) || !System.IO.File.Exists(filePath))
+            return NotFound();
+
+        var fileName = Path.GetFileName(filePath);
+        var mimeType = viewerService.GetMimeType(fileName);
+        var bytes = System.IO.File.ReadAllBytes(filePath);
+
+        return File(bytes, mimeType, fileName);
+    }
+}

DXApp.TemplateKitProject/Program.cs

@@ -18,6 +18,7 @@ builder.Services.AddScoped<PdfResultPackageService>();
 builder.Services.AddScoped<ZugferdExtractorService>();
 builder.Services.AddScoped<ZugferdParserService>();
 builder.Services.AddScoped<ZugferdImportService>();
+builder.Services.AddScoped<AttachmentViewerService>();
 
 var app = builder.Build();
 

DXApp.TemplateKitProject/Services/AttachmentViewerService.cs

@@ -0,0 +1,49 @@
+using DXApp.TemplateKitProject.Models;
+
+namespace DXApp.TemplateKitProject.Services;
+
+public class AttachmentViewerService
+{
+    public AttachmentViewerType DetermineViewerType(string fileName)
+    {
+        var extension = Path.GetExtension(fileName).ToLowerInvariant();
+
+        return extension switch
+        {
+            ".pdf" => AttachmentViewerType.Pdf,
+            ".xml" => AttachmentViewerType.Xml,
+            ".txt" => AttachmentViewerType.Text,
+            ".jpg" or ".jpeg" or ".png" or ".gif" => AttachmentViewerType.Image,
+            ".docx" or ".doc" => AttachmentViewerType.Word,
+            _ => AttachmentViewerType.Download
+        };
+    }
+
+    public string GetMimeType(string fileName)
+    {
+        var extension = Path.GetExtension(fileName).ToLowerInvariant();
+
+        return extension switch
+        {
+            ".pdf" => "application/pdf",
+            ".xml" => "application/xml",
+            ".txt" => "text/plain",
+            ".jpg" or ".jpeg" => "image/jpeg",
+            ".png" => "image/png",
+            ".gif" => "image/gif",
+            ".docx" => "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+            ".doc" => "application/msword",
+            _ => "application/octet-stream"
+        };
+    }
+}
+
+public enum AttachmentViewerType
+{
+    Pdf,        // PDF.js Viewer
+    Xml,        // Syntax-highlighted XML
+    Text,       // Plain Text
+    Image,      // <img> Tag
+    Word,       // Konvertierung zu PDF (optional)
+    Download    // Nur Download-Button
+}

DXApp.TemplateKitProject/Services/PdfResultPackageService.cs

@@ -56,7 +56,7 @@ public class PdfResultPackageService(
             converter.SaveDocument(convertedStream);
             convertedStream.Position = 0;
 
-            // Schritt 3: Anhang einbetten
+            // Schritt 3: Hauptdokument laden
             using var processor = new PdfDocumentProcessor();
             processor.LoadDocument(convertedStream);
 
@@ -68,15 +68,23 @@ public class PdfResultPackageService(
             processor.Document.Subject  = string.Empty;
             processor.Document.Keywords = string.Empty;
 
-            processor.AttachFile(new PdfFileAttachment
+            // Schritt 3a: Berichts-Seiten ans Ende anhängen
+            int reportPageCount;
+            using (var reportStream = new FileStream(reportPath, FileMode.Open, FileAccess.Read))
             {
-                FileName = Path.GetFileName(reportPath),
+                // Temporäres Dokument öffnen um Seitenanzahl zu ermitteln
-                Description = "Ergebnisbericht",
+                using var tempProcessor = new PdfDocumentProcessor();
-                MimeType = "application/pdf",
+                tempProcessor.LoadDocument(reportStream);
-                Relationship = PdfAssociatedFileRelationship.Supplement,
+                reportPageCount = tempProcessor.Document.Pages.Count;
-                CreationDate = DateTime.Now,
+
-                Data = File.ReadAllBytes(reportPath)
+                logger.LogDebug(
-            });
+                    "Hänge {PageCount} Seite(n) aus Bericht an das Dokument an.",
+                    reportPageCount);
+
+                // Stream zurücksetzen und ans Hauptdokument anhängen
+                reportStream.Position = 0;
+                processor.AppendDocument(reportStream);
+            }
 
             // Schritt 4: Stempel auf Seite 1 zeichnen
             var firstPage = processor.Document.Pages[0];
@@ -126,10 +134,15 @@ public class PdfResultPackageService(
                     processor.Document.Pages[0], 96, 96);
             }
 
-            // Schritt 4: Speichern
+            // Schritt 5: Speichern
             try
             {
                 processor.SaveDocument(outputPath);
+                
+                logger.LogInformation(
+                    "Result-PDF erstellt mit {TotalPages} Seiten (Original + {ReportPages} Berichtseiten).",
+                    processor.Document.Pages.Count,
+                    reportPageCount);
             }
             catch (Exception ex)
             {

DXApp.TemplateKitProject/package-lock.json

@@ -19,6 +19,7 @@
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.29.2.tgz",
       "integrity": "sha512-JiDShH45zKHWyGe4ZNVRrCjBz8Nh9TMmZG1kh4QTK8hCBTWBi8Da+i7s1fJw7/lYpM4ccepSNfqzZ/QvABBi5g==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=6.9.0"
       }
@@ -28,6 +29,7 @@
       "resolved": "https://registry.npmjs.org/@devexpress/utils/-/utils-2.1.1.tgz",
       "integrity": "sha512-hlemXR3L0yDPsMdhTQl9EtjiEYxIHklH7I4RKPkOhfrF5+jb4f3kkfvbKT7nA9aoFEHPPF0/hll43gOBpUpY0g==",
       "license": "SEE LICENSE IN README.md",
+      "peer": true,
       "dependencies": {
         "tslib": "2.3.1"
       }
@@ -37,6 +39,7 @@
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
       "integrity": "sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@jridgewell/sourcemap-codec": "^1.5.0",
         "@jridgewell/trace-mapping": "^0.3.24"
@@ -47,6 +50,7 @@
       "resolved": "https://registry.npmjs.org/@jridgewell/remapping/-/remapping-2.3.5.tgz",
       "integrity": "sha512-LI9u/+laYG4Ds1TDKSJW2YPrIlcVYOwi2fUC6xB43lueCjgxV4lffOCZCtYFiH6TNOX+tQKXx97T4IKHbhyHEQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@jridgewell/gen-mapping": "^0.3.5",
         "@jridgewell/trace-mapping": "^0.3.24"
@@ -57,6 +61,7 @@
       "resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
       "integrity": "sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=6.0.0"
       }
@@ -65,13 +70,15 @@
       "version": "1.5.5",
       "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.5.tgz",
       "integrity": "sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/@jridgewell/trace-mapping": {
       "version": "0.3.31",
       "resolved": "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.31.tgz",
       "integrity": "sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@jridgewell/resolve-uri": "^3.1.0",
         "@jridgewell/sourcemap-codec": "^1.4.14"
@@ -82,6 +89,7 @@
       "resolved": "https://registry.npmjs.org/@preact/signals-core/-/signals-core-1.14.2.tgz",
       "integrity": "sha512-RZHdBj9ZF4n40Rp4jS052EHHjBWf96P9oNdXPfhQTovCuWY9iQn3Gq+gOTJSgBO9A/JBuPfMOWsSX/lIU9Pc/A==",
       "license": "MIT",
+      "peer": true,
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/preact"
@@ -93,6 +101,7 @@
       "integrity": "sha512-es1U2+YTtzpwkxVLwAFdSpaIMyQaq0PBgm3YD1W3Qpsn1NAmO3KSgZfu+oGSWVu6NvLHoHCV/aYcsE5wiB7ALg==",
       "hasInstallScript": true,
       "license": "MIT",
+      "peer": true,
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/core-js"
@@ -102,19 +111,22 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
       "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/csstype": {
       "version": "3.2.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
       "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/devexpress-diagram": {
       "version": "2.2.29",
       "resolved": "https://registry.npmjs.org/devexpress-diagram/-/devexpress-diagram-2.2.29.tgz",
       "integrity": "sha512-6QS1zKP736QlIU6lMeZdq52Fe85BSa6vh1TwDIxSAKNwT6gHnGKm5paI71epRJ9H6GC4SLtv/zhlH8QCjwNnXQ==",
       "license": "SEE LICENSE IN README.md",
+      "peer": true,
       "dependencies": {
         "@devexpress/utils": "^2.1.1",
         "es6-object-assign": "^1.1.0"
@@ -125,6 +137,7 @@
       "resolved": "https://registry.npmjs.org/devexpress-gantt/-/devexpress-gantt-4.1.68.tgz",
       "integrity": "sha512-pilTDWwCv1EthcCV9uFj5krbSkA3MdjiKCgJdCmGaTA+lDNiWP5Xc2JzNK1sOOTMUmzN+3h7kAtcLxzTfjWTRg==",
       "license": "SEE LICENSE IN README.md",
+      "peer": true,
       "dependencies": {
         "@devexpress/utils": "^2.1.1",
         "tslib": "2.3.1"
@@ -175,6 +188,7 @@
       "resolved": "https://registry.npmjs.org/devextreme-quill/-/devextreme-quill-1.7.9.tgz",
       "integrity": "sha512-UEkR16+I/7P/4+7dUmc65lv+VRdRGk0kFvZXgHnM2UFcEBKqm1kVDdVPBolGRFwuOFuDttJxp2SXUAyiuSC8wA==",
       "license": "BSD-3-Clause",
+      "peer": true,
       "dependencies": {
         "core-js": "^3.34.0",
         "eventemitter3": "^4.0.7",
@@ -188,25 +202,29 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/es6-object-assign/-/es6-object-assign-1.1.0.tgz",
       "integrity": "sha512-MEl9uirslVwqQU369iHNWZXsI8yaZYGg/D65aOgZkeyFJwHYSxilf7rQzXKI7DdDuBPrBXbfk3sl9hJhmd5AUw==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/eventemitter3": {
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
       "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/fast-diff": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.3.0.tgz",
       "integrity": "sha512-VxPP4NqbUjj6MaAOafWeUn2cXWLcCtljklUtZf0Ind4XQ+QPtmA0b18zZy0jIQx+ExRVCR/ZQpBmik5lXshNsw==",
-      "license": "Apache-2.0"
+      "license": "Apache-2.0",
+      "peer": true
     },
     "node_modules/immediate": {
       "version": "3.0.6",
       "resolved": "https://registry.npmjs.org/immediate/-/immediate-3.0.6.tgz",
       "integrity": "sha512-XXOFtyqDjNDAQxVfYxuF7g9Il/IbWmmlQg2MYKOH8ExIT1qg6xc4zyS3HaEEATgs1btfzxq15ciUiY7gjSXRGQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/inferno": {
       "version": "8.2.3",
@@ -214,6 +232,7 @@
       "integrity": "sha512-LMeRlCe+RlXw8kHCLyOWRk2PsZ3Fo4jkESyAR1g4FfPT48N78i11YhTVXW2ukCx5MFjv+qrfa73JzJWU9sg4CQ==",
       "hasInstallScript": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "csstype": "^3.1.2",
         "inferno-vnode-flags": "8.2.3",
@@ -229,6 +248,7 @@
       "resolved": "https://registry.npmjs.org/inferno-create-element/-/inferno-create-element-8.2.3.tgz",
       "integrity": "sha512-YEwX4OiFlgeTutvE16uCGxkaSVwZ1DklpAPX8okjVsGaLIWQrM8QIQFxn3mTLWSu70Uea+afQfKL5wE4hxn39Q==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "inferno": "8.2.3"
       }
@@ -238,6 +258,7 @@
       "resolved": "https://registry.npmjs.org/inferno-hydrate/-/inferno-hydrate-8.2.3.tgz",
       "integrity": "sha512-AyCiswnjYg7D9veJdjiQg06Npp0/iXKhwOm2hjoY3cjadT3fIdz2XtDElLB7imU4icuJ3xOmXA8FgIfnSJfHrQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "inferno": "8.2.3"
       }
@@ -246,19 +267,22 @@
       "version": "8.2.3",
       "resolved": "https://registry.npmjs.org/inferno-vnode-flags/-/inferno-vnode-flags-8.2.3.tgz",
       "integrity": "sha512-dfC0MIwFv9PCbZCUsuk9ISejFS3fKJODC0rZ/LjxxzE+OrCk+PMwPLsUnGU6O9/jbBnPACVz1BkACDf5LWgU5Q==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
-      "license": "ISC"
+      "license": "ISC",
+      "peer": true
     },
     "node_modules/isarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
       "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/jquery": {
       "version": "3.7.1",
@@ -271,6 +295,7 @@
       "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.10.1.tgz",
       "integrity": "sha512-xXDvecyTpGLrqFrvkrUSoxxfJI5AH7U8zxxtVclpsUtMCq4JQ290LY8AW5c7Ggnr/Y/oK+bQMbqK2qmtk3pN4g==",
       "license": "(MIT OR GPL-3.0-or-later)",
+      "peer": true,
       "dependencies": {
         "lie": "~3.3.0",
         "pako": "~1.0.2",
@@ -283,6 +308,7 @@
       "resolved": "https://registry.npmjs.org/lie/-/lie-3.3.0.tgz",
       "integrity": "sha512-UaiMJzeWRlEujzAuw5LokY1L5ecNQYZKfmyZ9L7wDHb/p5etKaxXhohBcrw0EYby+G/NA52vRSN4N39dxHAIwQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "immediate": "~3.0.5"
       }
@@ -291,26 +317,30 @@
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz",
       "integrity": "sha512-H5ZhCF25riFd9uB5UCkVKo61m3S/xZk1x4wA6yp/L3RFP6Z/eHH1ymQcGLo7J3GMPfm0V/7m1tryHuGVxpqEBQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/lodash.isequal": {
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/lodash.isequal/-/lodash.isequal-4.5.0.tgz",
       "integrity": "sha512-pDo3lu8Jhfjqls6GkMgpahsF9kCyayhgykjyLMNFTKWrpVdAQtYyB4muAMWozBB4ig/dtWAmsMxLEI8wuz+DYQ==",
       "deprecated": "This package is deprecated. Use require('node:util').isDeepStrictEqual instead.",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/lodash.merge": {
       "version": "4.6.2",
       "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
       "integrity": "sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/opencollective-postinstall": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/opencollective-postinstall/-/opencollective-postinstall-2.0.3.tgz",
       "integrity": "sha512-8AV/sCtuzUeTo8gQK5qDZzARrulB3egtLzFgteqB2tcT4Mw7B8Kt7JcDHmltjz6FOAHsvTevk70gZEbhM4ZS9Q==",
       "license": "MIT",
+      "peer": true,
       "bin": {
         "opencollective-postinstall": "index.js"
       }
@@ -319,19 +349,22 @@
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
       "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
-      "license": "(MIT AND Zlib)"
+      "license": "(MIT AND Zlib)",
+      "peer": true
     },
     "node_modules/parchment": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/parchment/-/parchment-2.0.1.tgz",
       "integrity": "sha512-VBKrlEoZCBD+iwoeag0QTtY1Cti+Ma4nLpVYcc/uus/wHhMsPOi5InH3RL1s4aekahPZpabcS2ToKyGf7RMH/g==",
-      "license": "BSD-3-Clause"
+      "license": "BSD-3-Clause",
+      "peer": true
     },
     "node_modules/picomatch": {
       "version": "4.0.4",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.4.tgz",
       "integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -343,13 +376,15 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
       "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
-      "license": "MIT"
+      "license": "MIT",
+      "peer": true
     },
     "node_modules/quill-delta": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/quill-delta/-/quill-delta-5.1.0.tgz",
       "integrity": "sha512-X74oCeRI4/p0ucjb5Ma8adTXd9Scumz367kkMK5V/IatcX6A0vlgLgKbzXWy5nZmCGeNJm2oQX0d2Eqj+ZIlCA==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "fast-diff": "^1.3.0",
         "lodash.clonedeep": "^4.5.0",
@@ -364,6 +399,7 @@
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
       "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "core-util-is": "~1.0.0",
         "inherits": "~2.0.3",
@@ -379,6 +415,7 @@
       "resolved": "https://registry.npmjs.org/rrule/-/rrule-2.8.1.tgz",
       "integrity": "sha512-hM3dHSBMeaJ0Ktp7W38BJZ7O1zOgaFEsn41PDk+yHoEtfLV+PoJt9E9xAlZiWgf/iqEqionN0ebHFZIDAp+iGw==",
       "license": "BSD-3-Clause",
+      "peer": true,
       "dependencies": {
         "tslib": "^2.4.0"
       }
@@ -387,25 +424,29 @@
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
-      "license": "0BSD"
+      "license": "0BSD",
+      "peer": true
     },
     "node_modules/safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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