feat(ausstellungen): Ausstellungs-/Auszeichnungsergebnisse je Tier

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

GerbilManagerWebAPI/ApplicationContext.cs

@@ -25,6 +25,7 @@ public class ApplicationContext : DbContext
     public DbSet<Request> Requests => Set<Request>();
     public DbSet<MailSettings> MailSettings => Set<MailSettings>();
     public DbSet<Feedback> Feedback => Set<Feedback>();
+    public DbSet<ExhibitionResult> ExhibitionResults => Set<ExhibitionResult>();
 
     // Keep Gerbil.NameSearch in sync on every save (separator-insensitive search key),
     // so it can never drift from Name regardless of which code path mutates the entity.
@@ -212,6 +213,14 @@ public class ApplicationContext : DbContext
             e.HasIndex(f => f.CreatedAt);
         });
 
+        // EXHIBITION: deliberately relationship-free (same pattern as Feedback). GerbilId is a
+        // plain nullable Guid column (no navigation property → EF creates NO foreign key), so the
+        // import re-ingest wipe of Gerbils never cascades into or breaks exhibition rows.
+        modelBuilder.Entity<ExhibitionResult>(e =>
+        {
+            e.HasIndex(x => x.GerbilId);
+        });
+
         // DB-4: German collation on remaining searched/sorted text columns (Npgsql-only).
         if (isNpgsql)
         {

GerbilManagerWebAPI/Dtos/ExhibitionResultDtos.cs

@@ -0,0 +1,34 @@
+namespace GerbilManagerWebAPI.Dtos
+{
+    /// <summary>EXHIBITION: payload for POST /exhibitions.</summary>
+    public record ExhibitionResultInput(
+        Guid? GerbilId,
+        string? EntityName,
+        string EventName,
+        DateTime? Date,
+        string? Placement,
+        string? Award,
+        string? Note);
+
+    /// <summary>EXHIBITION: payload for PUT /exhibitions/{id} (all fields optional/partial).</summary>
+    public record ExhibitionResultUpdate(
+        Guid? GerbilId,
+        string? EntityName,
+        string? EventName,
+        DateTime? Date,
+        string? Placement,
+        string? Award,
+        string? Note);
+
+    /// <summary>EXHIBITION: response DTO for a stored exhibition result.</summary>
+    public record ExhibitionResultDto(
+        Guid Id,
+        Guid? GerbilId,
+        string? EntityName,
+        string EventName,
+        DateTime? Date,
+        string? Placement,
+        string? Award,
+        string? Note,
+        DateTimeOffset CreatedAt);
+}

GerbilManagerWebAPI/Endpoints/ExhibitionEndpoints.cs

@@ -0,0 +1,114 @@
+using GerbilManagerWebAPI.Dtos;
+using GerbilManagerWebAPI.Models;
+using Microsoft.AspNetCore.Http.HttpResults;
+using Microsoft.EntityFrameworkCore;
+
+namespace GerbilManagerWebAPI.Endpoints
+{
+    /// <summary>
+    /// EXHIBITION: show/exhibition results &amp; awards per animal (RennmausPro `ausz_tb`).
+    ///   GET    /exhibitions[?gerbilId=…] -> list (optionally filtered to one animal), newest first.
+    ///   POST   /exhibitions              -> create a result, returns 201.
+    ///   PUT    /exhibitions/{id}         -> edit a result (partial), 404 on missing id.
+    ///   DELETE /exhibitions/{id}         -> remove a result, 404 on missing id.
+    /// Decoupled from gerbils (loose nullable GerbilId, no FK) so rows survive the import re-ingest wipe.
+    /// </summary>
+    public static class ExhibitionEndpoints
+    {
+        public static IEndpointRouteBuilder MapExhibitionEndpoints(this IEndpointRouteBuilder app)
+        {
+            var group = app.MapGroup("/exhibitions").WithTags("Exhibitions");
+
+            group.MapGet("/", async (ApplicationContext db, Guid? gerbilId) =>
+            {
+                // Filter in the query; order in memory (SQLite test host cannot ORDER BY a
+                // DateTimeOffset column — mirrors FeedbackEndpoints).
+                var query = db.ExhibitionResults.AsNoTracking();
+                if (gerbilId is { } gid)
+                    query = query.Where(x => x.GerbilId == gid);
+                var rows = await query.ToListAsync();
+                return TypedResults.Ok(rows
+                    .OrderByDescending(x => x.Date ?? DateTime.MinValue)
+                    .ThenByDescending(x => x.CreatedAt)
+                    .Select(ToDto)
+                    .ToList());
+            });
+
+            group.MapGet("/{id:guid}", async Task<Results<Ok<ExhibitionResultDto>, NotFound>> (
+                Guid id, ApplicationContext db) =>
+            {
+                var r = await db.ExhibitionResults.AsNoTracking().FirstOrDefaultAsync(x => x.Id == id);
+                return r is null ? TypedResults.NotFound() : TypedResults.Ok(ToDto(r));
+            });
+
+            group.MapPost("/", async Task<Results<Created<ExhibitionResultDto>, BadRequest<string>>> (
+                ExhibitionResultInput input, ApplicationContext db) =>
+            {
+                if (string.IsNullOrWhiteSpace(input.EventName))
+                    return TypedResults.BadRequest("EventName darf nicht leer sein.");
+
+                var entity = new ExhibitionResult
+                {
+                    Id = Guid.NewGuid(),
+                    GerbilId = input.GerbilId,
+                    EntityName = Trim(input.EntityName),
+                    EventName = input.EventName.Trim(),
+                    Date = input.Date,
+                    Placement = Trim(input.Placement),
+                    Award = Trim(input.Award),
+                    Note = Trim(input.Note),
+                    CreatedAt = DateTimeOffset.UtcNow,
+                };
+                db.ExhibitionResults.Add(entity);
+                await db.SaveChangesAsync();
+                return TypedResults.Created($"/exhibitions/{entity.Id}", ToDto(entity));
+            });
+
+            group.MapPut("/{id:guid}", async Task<Results<Ok<ExhibitionResultDto>, NotFound, BadRequest<string>>> (
+                Guid id, ExhibitionResultUpdate input, ApplicationContext db) =>
+            {
+                var entity = await db.ExhibitionResults.FirstOrDefaultAsync(x => x.Id == id);
+                if (entity is null)
+                    return TypedResults.NotFound();
+
+                if (input.EventName is not null)
+                {
+                    if (string.IsNullOrWhiteSpace(input.EventName))
+                        return TypedResults.BadRequest("EventName darf nicht leer sein.");
+                    entity.EventName = input.EventName.Trim();
+                }
+                if (input.GerbilId is not null) entity.GerbilId = input.GerbilId;
+                if (input.EntityName is not null) entity.EntityName = Trim(input.EntityName);
+                if (input.Date is not null) entity.Date = input.Date;
+                if (input.Placement is not null) entity.Placement = Trim(input.Placement);
+                if (input.Award is not null) entity.Award = Trim(input.Award);
+                if (input.Note is not null) entity.Note = Trim(input.Note);
+
+                await db.SaveChangesAsync();
+                return TypedResults.Ok(ToDto(entity));
+            });
+
+            group.MapDelete("/{id:guid}", async Task<Results<NoContent, NotFound>> (
+                Guid id, ApplicationContext db) =>
+            {
+                var entity = await db.ExhibitionResults.FirstOrDefaultAsync(x => x.Id == id);
+                if (entity is null)
+                    return TypedResults.NotFound();
+
+                db.ExhibitionResults.Remove(entity);
+                await db.SaveChangesAsync();
+                return TypedResults.NoContent();
+            });
+
+            return app;
+        }
+
+        // Empty/whitespace optional strings normalise to null.
+        private static string? Trim(string? s) =>
+            string.IsNullOrWhiteSpace(s) ? null : s.Trim();
+
+        private static ExhibitionResultDto ToDto(ExhibitionResult r) =>
+            new(r.Id, r.GerbilId, r.EntityName, r.EventName, r.Date,
+                r.Placement, r.Award, r.Note, r.CreatedAt);
+    }
+}

GerbilManagerWebAPI/Migrations/20260622201620_AddExhibitionResult.cs

@@ -0,0 +1,46 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GerbilManagerWebAPI.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddExhibitionResult : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ExhibitionResults",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    GerbilId = table.Column<Guid>(type: "uuid", nullable: true),
+                    EntityName = table.Column<string>(type: "text", nullable: true),
+                    EventName = table.Column<string>(type: "text", nullable: false),
+                    Date = table.Column<DateTime>(type: "timestamp with time zone", nullable: true),
+                    Placement = table.Column<string>(type: "text", nullable: true),
+                    Award = table.Column<string>(type: "text", nullable: true),
+                    Note = table.Column<string>(type: "text", nullable: true),
+                    CreatedAt = table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ExhibitionResults", x => x.Id);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ExhibitionResults_GerbilId",
+                table: "ExhibitionResults",
+                column: "GerbilId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ExhibitionResults");
+        }
+    }
+}

GerbilManagerWebAPI/Migrations/ApplicationContextModelSnapshot.cs

@@ -796,6 +796,44 @@ namespace GerbilManagerWebAPI.Migrations
                     b.ToTable("EnclosurePhotos");
                 });
 
+            modelBuilder.Entity("GerbilManagerWebAPI.Models.ExhibitionResult", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Award")
+                        .HasColumnType("text");
+
+                    b.Property<DateTimeOffset>("CreatedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("EntityName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("EventName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid?>("GerbilId")
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Note")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Placement")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("GerbilId");
+
+                    b.ToTable("ExhibitionResults");
+                });
+
             modelBuilder.Entity("GerbilManagerWebAPI.Models.Feedback", b =>
                 {
                     b.Property<Guid>("Id")

GerbilManagerWebAPI/Models/ExhibitionResult.cs

@@ -0,0 +1,44 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace GerbilManagerWebAPI.Models
+{
+    /// <summary>
+    /// EXHIBITION: a show/exhibition result or award for an animal (RennmausPro `ausz_tb` +
+    /// `_AUSZ` flag — present in RPRO3 but unused by this breeder; implemented fully anyway).
+    ///
+    /// Deliberately decoupled from the rest of the model, exactly like <see cref="Feedback"/>:
+    /// GerbilId is a plain nullable Guid column (NOT an enforced foreign key, no navigation
+    /// property), so the import re-ingest wipe (IngestResolvedService) can delete/recreate
+    /// gerbils without deleting or breaking exhibition rows. Captured EntityName keeps the
+    /// record human-readable even after the referenced animal is gone.
+    /// </summary>
+    public class ExhibitionResult
+    {
+        [Key]
+        public Guid Id { get; set; }
+
+        /// <summary>Loose reference (no FK) to the gerbil this result belongs to, if any.</summary>
+        public Guid? GerbilId { get; set; }
+
+        /// <summary>Captured name of the referenced animal (survives an ingest wipe).</summary>
+        public string? EntityName { get; set; }
+
+        /// <summary>Name of the show/event (Veranstaltung), e.g. "Nationale Rennmausschau 2026".</summary>
+        public required string EventName { get; set; }
+
+        /// <summary>Date of the event, if known.</summary>
+        public DateTime? Date { get; set; }
+
+        /// <summary>Placement / ranking, e.g. "1. Platz", "BOB".</summary>
+        public string? Placement { get; set; }
+
+        /// <summary>Award / title (Auszeichnung), e.g. "Best in Show", "V1".</summary>
+        public string? Award { get; set; }
+
+        /// <summary>Free-text note (Bewertung / Bemerkung).</summary>
+        public string? Note { get; set; }
+
+        /// <summary>Server-side creation time.</summary>
+        public DateTimeOffset CreatedAt { get; set; }
+    }
+}

GerbilManagerWebAPI/Program.cs

@@ -127,6 +127,7 @@ app.MapCmsEndpoints();
 app.MapRequestEndpoints();
 app.MapNamesEndpoints();
 app.MapFeedbackEndpoints();
+app.MapExhibitionEndpoints();
 
 app.Run();