Fixed missing imports bug and fixed linting

lightrag/api/lightrag_server.py

@@ -684,7 +684,9 @@ def create_app(args):
                         trace_exception(e)
                         logging.error(f"Error indexing file {file_path}: {str(e)}")
 
-                ASCIIColors.info(f"Indexed {len(new_files)} documents from {args.input_dir}")
+                ASCIIColors.info(
+                    f"Indexed {len(new_files)} documents from {args.input_dir}"
+                )
             except Exception as e:
                 logging.error(f"Error during startup indexing: {str(e)}")
         yield
@@ -917,7 +919,6 @@ def create_app(args):
         else:
             logging.warning(f"No content extracted from file: {file_path}")
 
-
     @app.post("/documents/scan", dependencies=[Depends(optional_api_key)])
     async def scan_for_new_documents():
         """

lightrag/api/static/index.html

@@ -622,7 +622,7 @@
           const data = await response.json();
           // Convert indexed_files to array if it's not already
           const files = Array.isArray(data.indexed_files) ? data.indexed_files : data.indexed_files.split(',');
-          
+
           healthInfo.innerHTML = `
             <div class="space-y-4">
               <div class="flex items-center">