style(core): format slicing syntax consistently

Author: jinliyl

flowllm/core/vector_store/chroma_vector_store.py

@@ -111,7 +111,7 @@ def _build_chroma_filters(
 
             # Strip "metadata." prefix if present (ChromaDB stores metadata fields directly)
             if key.startswith("metadata."):
-                chroma_key = key[len("metadata."):]
+                chroma_key = key[len("metadata.") :]
             else:
                 chroma_key = key
 

tests/test_memory_vector_store.py

@@ -296,7 +296,10 @@ def test_search_with_filter(self, workspace_id: str):
         logger.info(f"Filtered search returned {len(results)} results (node_type in [tech, tech_new])")
         for i, r in enumerate(results, 1):
             logger.info(f"Filtered Result {i}: {r.model_dump(exclude={'vector'})}")
-            assert r.metadata.get("node_type") in ["tech", "tech_new"], "All results should have node_type in [tech, tech_new]"
+            assert r.metadata.get("node_type") in [
+                "tech",
+                "tech_new",
+            ], "All results should have node_type in [tech, tech_new]"
 
     def test_search_with_id(self, workspace_id: str):
         """Test vector search by unique_id with empty query."""
@@ -522,7 +525,10 @@ async def test_search_with_filter(self, workspace_id: str):
         logger.info(f"Filtered search returned {len(results)} results (node_type in [tech, tech_new])")
         for i, r in enumerate(results, 1):
             logger.info(f"Filtered Result {i}: {r.model_dump(exclude={'vector'})}")
-            assert r.metadata.get("node_type") in ["tech", "tech_new"], "All results should have node_type in [tech, tech_new]"
+            assert r.metadata.get("node_type") in [
+                "tech",
+                "tech_new",
+            ], "All results should have node_type in [tech, tech_new]"
 
     async def test_search_with_id(self, workspace_id: str):
         """Test async vector search by unique_id with empty query."""