Isolate per-item Radarr failures in RecommendationPipeline.autoRequest

Matches the Go original's behavior: a lookup/addMovie failure for one
recommendation is logged and skipped rather than aborting the whole
auto-request batch.

test/app/pipelines/RecommendationPipeline.test.ts

@@ -215,6 +215,46 @@ describe('RecommendationPipeline.autoRequest', () => {
 
     await expect(pipeline.autoRequest([{ title: 'Dune', year: 2021, tmdbId: 1, reason: 'r' }])).resolves.toBeUndefined();
   });
+
+  it('logs and continues when one recommendation fails, instead of aborting the rest', async () => {
+    const radarr = {
+      lookup: vi
+        .fn()
+        .mockRejectedValueOnce(new Error('radarr down'))
+        .mockResolvedValueOnce({
+          title: 'Arrival',
+          tmdbId: 2,
+          qualityProfileId: 1,
+          rootFolderPath: '/movies',
+          monitored: true,
+          addOptions: { searchForMovie: true },
+        }),
+      addMovie: vi.fn().mockResolvedValue(undefined),
+    } as unknown as RadarrClient;
+    const logger = { error: vi.fn() } as unknown as Logger;
+
+    const pipeline = new RecommendationPipeline(makeTracer(), logger, {
+      jellyfin: {} as JellyfinClient,
+      tmdb: {} as TmdbClient,
+      radarr,
+      tool: {} as MovieRecommenderTool,
+      searchTool: {} as MovieSearchTool,
+      minRatedMovies: 1,
+      maxRetry: 0,
+    });
+
+    await pipeline.autoRequest([
+      { title: 'Dune', year: 2021, tmdbId: 1, reason: 'r1' },
+      { title: 'Arrival', year: 2016, tmdbId: 2, reason: 'r2' },
+    ]);
+
+    expect(logger.error).toHaveBeenCalledWith(
+      expect.objectContaining({ tmdbId: 1, title: 'Dune' }),
+      'Radarr auto-request failed'
+    );
+    expect(radarr.lookup).toHaveBeenCalledTimes(2);
+    expect(radarr.addMovie).toHaveBeenCalledTimes(1);
+  });
 });
 
 describe('RecommendationPipeline.searchAsync', () => {