Personalized playlists: ruff B905 — explicit strict= on zip()

CI ruff check failed on the seasonal_mix tuple-row coercion path
where a `zip(columns, row)` call lacked an explicit `strict=`.

Set `strict=False` to preserve the original intent (tolerant if
the row shape ever drifts from the column tuple). The SELECT
always returns 8 columns so the lengths match in practice; using
strict=False just avoids a future raise if a generator drift
changes that.

Live happy path stays unchanged: rows from sqlite3.Row hit the
`hasattr(r, 'keys')` branch above and never reach the zip line.
The zip branch only runs for plain-tuple rows in tests.

core/personalized/generators/seasonal_mix.py

@@ -81,6 +81,7 @@ def _hydrate_seasonal_tracks(db, season_key: str, source: str, track_ids: List[s
                 ('spotify_track_id', 'track_name', 'artist_name', 'album_name',
                  'album_cover_url', 'duration_ms', 'popularity', 'track_data_json'),
                 r,
+                strict=False,
             ))
         td = r.get('track_data_json')
         if isinstance(td, str):