Add debug logging to recipe upload and get

To help diagnose why recipes are not found after upload.

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

app/services/recipe_service.py

@@ -33,10 +33,15 @@ class RecipeService:
     async def get_recipe(self, recipe_id: str) -> Optional[Recipe]:
         """Get a recipe by ID (content hash)."""
         import yaml
+        import logging
+        logger = logging.getLogger(__name__)
 
         # Get from cache (content-addressed storage)
+        logger.info(f"get_recipe: Looking up recipe_id={recipe_id[:16]}...")
         path = self.cache.get_by_cid(recipe_id)
+        logger.info(f"get_recipe: cache.get_by_cid returned path={path}")
         if not path or not path.exists():
+            logger.warning(f"get_recipe: Recipe {recipe_id[:16]}... not found in cache")
             return None
 
         with open(path) as f:
@@ -160,14 +165,18 @@ class RecipeService:
             return None, f"Compile error: {e}"
 
         # Write to temp file for caching
+        import logging
+        logger = logging.getLogger(__name__)
         try:
             with tempfile.NamedTemporaryFile(delete=False, suffix=".sexp", mode="w") as tmp:
                 tmp.write(content)
                 tmp_path = Path(tmp.name)
 
             # Store in cache (content-addressed, auto-pins to IPFS)
+            logger.info(f"upload_recipe: Storing recipe in cache from {tmp_path}")
             cached, ipfs_cid = self.cache.put(tmp_path, node_type="recipe", move=True)
             recipe_id = ipfs_cid or cached.cid  # Prefer IPFS CID
+            logger.info(f"upload_recipe: Stored recipe, cached.cid={cached.cid[:16]}..., ipfs_cid={ipfs_cid[:16] if ipfs_cid else None}, recipe_id={recipe_id[:16]}...")
 
             # Track ownership in item_types and assign friendly name
             if uploader: