chore: update watchlist features and fixes

main.py

@@ -2088,7 +2088,7 @@ async def check_watchlist_item(
         raise
     except Exception as e:
         logger.error(f"Error checking watchlist item: {e}", exc_info=True)
-    raise HTTPException(status_code=500, detail=str(e))
+        raise HTTPException(status_code=500, detail=str(e))
 
 
 @app.post("/api/watchlist/{item_id}/download-all", tags=["Watchlist"])
@@ -2106,20 +2106,18 @@ async def download_all_episodes(
             raise HTTPException(status_code=403, detail="Access denied")
 
         # Temporarily set last_episode_downloaded to 0 to trigger download of ALL episodes
-        original_last_episode = item.last_episode_downloaded
-        item.last_episode_downloaded = 0
-        watchlist_manager.db.commit()
+        watchlist_manager.update(item_id, {"last_episode_downloaded": 0})
 
-        try:
-            result = await episode_checker.manual_check(item_id)
-            return {
-                "status": "success",
-                "message": f"Downloading all episodes for {item.anime_title}",
-                "result": result
-            }
-        finally:
-            item.last_episode_downloaded = original_last_episode
-            watchlist_manager.db.commit()
+        result = await episode_checker.manual_check(item_id)
+
+        # Note: download_new_episodes already updates last_episode_downloaded via update_check_time
+        # So we don't restore the original value - the new value reflects what was actually downloaded
+
+        return {
+            "status": "success",
+            "message": f"Downloading all episodes for {item.anime_title}",
+            "result": result
+        }
     except HTTPException:
         raise
     except Exception as e:
@@ -2127,9 +2125,6 @@ async def download_all_episodes(
         raise HTTPException(status_code=500, detail=str(e))
 
 
-@app.post("/api/watchlist/{item_id}/pause", response_model=WatchlistItem, tags=["Watchlist"])
-
-
 @app.post("/api/watchlist/{item_id}/pause", response_model=WatchlistItem, tags=["Watchlist"])
 async def pause_watchlist_item(
     item_id: str,