Fix stats counting to use ownership-based database queries

- Media: Only count video/image/audio/unknown types, not effects/recipes
- Effects: Use database count_user_items instead of filesystem scan
- Recipes: Use database count_user_items instead of loading all recipes

This ensures stats reflect user ownership via item_types table,
and prevents effects from being double-counted as media.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/routers/home.py

@@ -19,21 +19,23 @@ router = APIRouter()
 async def get_user_stats(actor_id: str) -> dict:
     """Get stats for a user."""
     import database
-    from ..services.recipe_service import RecipeService
     from ..services.run_service import RunService
     from ..dependencies import get_redis_client, get_cache_manager
 
     stats = {}
 
     try:
-        stats["media"] = await database.count_user_items(actor_id)
+        # Count only actual media types (video, image, audio), not effects/recipes
+        media_count = 0
+        for media_type in ["video", "image", "audio", "unknown"]:
+            media_count += await database.count_user_items(actor_id, item_type=media_type)
+        stats["media"] = media_count
     except Exception:
         stats["media"] = 0
 
     try:
-        recipe_service = RecipeService(get_redis_client(), get_cache_manager())
-        recipes = await recipe_service.list_recipes(actor_id)
-        stats["recipes"] = len(recipes)
+        # Count user's recipes from database (ownership-based)
+        stats["recipes"] = await database.count_user_items(actor_id, item_type="recipe")
     except Exception:
         stats["recipes"] = 0
 
@@ -51,11 +53,8 @@ async def get_user_stats(actor_id: str) -> dict:
         stats["storage"] = 0
 
     try:
-        effects_dir = Path(get_cache_manager().cache_dir) / "_effects"
-        if effects_dir.exists():
-            stats["effects"] = len([d for d in effects_dir.iterdir() if d.is_dir()])
-        else:
-            stats["effects"] = 0
+        # Count user's effects from database (ownership-based)
+        stats["effects"] = await database.count_user_items(actor_id, item_type="effect")
     except Exception:
         stats["effects"] = 0