Clean up retired metadata path

app.py

@@ -35,8 +35,6 @@ from app_support import (
     CONFIG_PATH,
     DEFAULT_CONFIG,
     MAX_JSON_BODY_BYTES,
-    METADATA_API,
-    METADATA_REFERER,
     MODE_CHOICES,
     QUALITY_CHOICES,
     send_discord_webhook_event,
@@ -101,37 +99,6 @@ WATCHLIST_JELLYFIN_SYNC = None
 WATCHLIST_BACKUP_FORMAT_VERSION = 1
 
 
-def graph_request(query, variables, timeout=25):
-    payload = json.dumps({"variables": variables, "query": query}).encode("utf-8")
-    request = urllib.request.Request(
-        f"{METADATA_API}/api",
-        data=payload,
-        headers={
-            "Content-Type": "application/json",
-            "Referer": METADATA_REFERER,
-            "User-Agent": AGENT,
-        },
-        method="POST",
-    )
-    try:
-        with urllib.request.urlopen(request, timeout=timeout) as response:
-            raw = response.read().decode("utf-8")
-    except urllib.error.URLError as exc:
-        raise RuntimeError(f"Could not reach metadata service: {exc}") from exc
-    except TimeoutError as exc:
-        raise RuntimeError("Metadata request timed out") from exc
-
-    try:
-        data = json.loads(raw)
-    except json.JSONDecodeError as exc:
-        raise RuntimeError("Metadata service returned an unreadable response") from exc
-
-    if data.get("errors"):
-        message = data["errors"][0].get("message", "Metadata service returned an error")
-        raise RuntimeError(message)
-    return data.get("data", {})
-
-
 def parse_iso_timestamp(value):
     text = str(value or "").strip()
     if not text:
@@ -2209,8 +2176,8 @@ class WatchlistStore:
         if include_thumbnail and self.has_show(normalized_show_id):
             try:
                 self.ensure_thumbnail(normalized_show_id)
-            except Exception:
-                pass
+            except Exception as exc:
+                debug_log("watchlist.refresh.thumbnail_failed", show_id=normalized_show_id, error=exc)
         item = self.get(normalized_show_id)
         item["previous_sub_count"] = previous_sub_count
         item["previous_dub_count"] = previous_dub_count
@@ -2802,8 +2769,8 @@ class WatchlistStore:
                 continue
             try:
                 self.ensure_thumbnail(show_id, force=force)
-            except Exception:
-                pass
+            except Exception as exc:
+                debug_log("watchlist.ensure_thumbnails.failed", show_id=show_id, error=exc)
             try:
                 updated.append(self.get(show_id))
             except KeyError: