Fix test fixtures: two movies can't share FAKE_MOVIE's embedded video

FAKE_MOVIE carries a fixed provider_video_id ("abc123"); two different
fake movies both spreading it unmodified and getting ingested in the
same test collide on the real uq_video_provider_source unique
constraint (a video id belongs to exactly one entity). Found by
actually running the tests against Postgres on the devbox -- these
paths were only ever collect-only'd locally before now (no local DB).

Affected: test_movie_recommendations_only_include_already_ingested_movies
and test_ingest_collection_only_links_already_ingested_movies, both of
which ingest two FAKE_MOVIE-derived movies in one test. Fixed by
overriding videos to empty on the second movie in each.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

tests/integration/test_collection_ingestion.py

@@ -57,10 +57,18 @@ async def test_ingest_collection_only_links_already_ingested_movies(db_session:
     already knows about, in release-date order, never fabricate a stub for
     the other two (section 15)."""
 
+    # 604's videos overridden to empty: FAKE_MOVIE's embedded video has a
+    # fixed provider_video_id, and two different movies both ingesting it
+    # would collide on the real uq_video_provider_source unique constraint.
     provider = FakeTMDbCollectionProvider(
         movie_payloads={
             "603": {**FAKE_MOVIE, "id": 603, "title": "The Matrix"},
-            "604": {**FAKE_MOVIE, "id": 604, "title": "The Matrix Reloaded"},
+            "604": {
+                **FAKE_MOVIE,
+                "id": 604,
+                "title": "The Matrix Reloaded",
+                "videos": {"results": []},
+            },
         },
         collection_payload=FAKE_COLLECTION,
     )

tests/integration/test_movie_ingestion.py

@@ -188,7 +188,17 @@ async def test_movie_recommendations_only_include_already_ingested_movies(
     external id (section 15: never fabricate a stub for an unseen entity),
     and GET .../recommendations must return them in TMDb's ranked order."""
 
-    sequel_payload = {**FAKE_MOVIE, "id": 604, "title": "The Matrix Reloaded"}
+    # videos overridden to empty: FAKE_MOVIE's embedded video has a fixed
+    # provider_video_id, and two different movies both ingesting it would
+    # collide on the real uq_video_provider_source unique constraint --
+    # a video id is only ever attached to one entity, unlike genres/companies
+    # which are legitimately shared.
+    sequel_payload = {
+        **FAKE_MOVIE,
+        "id": 604,
+        "title": "The Matrix Reloaded",
+        "videos": {"results": []},
+    }
     await ingest_movie(db_session, FakeTMDbProvider(sequel_payload), "604")
     await db_session.flush()