Fix cache title hydration

backend/app/db.py

@@ -76,6 +76,40 @@ def _extract_title_year_from_payload(payload_json: Optional[str]) -> tuple[Optio
     return _normalize_title_value(title), _normalize_year_value(year)
 
 
+def _extract_tmdb_from_payload(payload_json: Optional[str]) -> tuple[Optional[int], Optional[str]]:
+    if not payload_json:
+        return None, None
+    try:
+        payload = json.loads(payload_json)
+    except (TypeError, json.JSONDecodeError):
+        return None, None
+    if not isinstance(payload, dict):
+        return None, None
+    media = payload.get("media") or {}
+    if not isinstance(media, dict):
+        media = {}
+    tmdb_id = (
+        media.get("tmdbId")
+        or payload.get("tmdbId")
+        or payload.get("tmdb_id")
+        or media.get("externalServiceId")
+        or payload.get("externalServiceId")
+    )
+    media_type = (
+        media.get("mediaType")
+        or payload.get("mediaType")
+        or payload.get("media_type")
+        or payload.get("type")
+    )
+    try:
+        tmdb_id = int(tmdb_id) if tmdb_id is not None else None
+    except (TypeError, ValueError):
+        tmdb_id = None
+    if isinstance(media_type, str):
+        media_type = media_type.strip().lower() or None
+    return tmdb_id, media_type
+
+
 def init_db() -> None:
     with _connect() as conn:
         conn.execute(
@@ -874,6 +908,34 @@ def get_request_cache_overview(limit: int = 50) -> list[Dict[str, Any]]:
     return results
 
 
+def get_request_cache_missing_titles(limit: int = 200) -> list[Dict[str, Any]]:
+    limit = max(1, min(limit, 500))
+    with _connect() as conn:
+        rows = conn.execute(
+            """
+            SELECT request_id, payload_json
+            FROM requests_cache
+            WHERE title IS NULL OR TRIM(title) = '' OR LOWER(title) = 'untitled'
+            ORDER BY updated_at DESC, request_id DESC
+            LIMIT ?
+            """,
+            (limit,),
+        ).fetchall()
+    results: list[Dict[str, Any]] = []
+    for row in rows:
+        payload_json = row[1]
+        tmdb_id, media_type = _extract_tmdb_from_payload(payload_json)
+        results.append(
+            {
+                "request_id": row[0],
+                "payload_json": payload_json,
+                "tmdb_id": tmdb_id,
+                "media_type": media_type,
+            }
+        )
+    return results
+
+
 def get_request_cache_count() -> int:
     with _connect() as conn:
         row = conn.execute("SELECT COUNT(*) FROM requests_cache").fetchone()