Enhance metadata handling by introducing ShowKind parameter across various components. Update SearchShowMetadataQuery and related handlers to support querying by show type, ensuring accurate metadata retrieval for series and films. Implement validation to prevent episodes from being associated with non-series shows. Update frontend API to include ShowKind in metadata search requests, improving overall functionality and user experience.

backend/tests/TeleWave.Application.Tests/Metadata/FindMissingEpisodesTests.cs

@@ -50,6 +50,29 @@ public class FindMissingEpisodesTests
         Assert.Equal([2, 3], s2.Missing);
     }
 
+    [Fact]
+    public async Task Fails_ForNonSeries()
+    {
+        // У полнометражки сезонов нет, и запрос ушёл бы в /tv/{id} с идентификатором фильма.
+        var fixture = new TestDb();
+        var show = Show.Create("A", ShowKind.Single);
+        show.ApplyMetadata("tmdb", "123", null, 2000, null);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        var resolver = Substitute.For<IMetadataProviderResolver>();
+        await using var db = fixture.New();
+        var result = await new FindMissingEpisodesQueryHandler(db, resolver).Handle(
+            new FindMissingEpisodesQuery(show.Id),
+            CancellationToken.None
+        );
+
+        Assert.False(result.IsSuccess);
+    }
+
     [Fact]
     public async Task Fails_WhenNoLinkedSource()
     {