feat: fix hidden files whitelist logic to require ALL hidden path components be whitelisted, add vault config to single file indexing, and improve reindex button feedback with save phase indication

backend/indexer.py

@@ -444,13 +444,14 @@ def _get_async_lock() -> asyncio.Lock:
     return _async_index_lock
 
 
-def _index_single_file_sync(vault_name: str, vault_path: str, file_path: str) -> Optional[Dict[str, Any]]:
+def _index_single_file_sync(vault_name: str, vault_path: str, file_path: str, vault_cfg: Optional[Dict[str, Any]] = None) -> Optional[Dict[str, Any]]:
     """Synchronously read and parse a single file for indexing.
 
     Args:
         vault_name: Name of the vault.
         vault_path: Absolute path to vault root.
         file_path: Absolute path to the file.
+        vault_cfg: Optional vault configuration dict with hidden files settings.
 
     Returns:
         File info dict or None if the file cannot be read.
@@ -464,7 +465,11 @@ def _index_single_file_sync(vault_name: str, vault_path: str, file_path: str) ->
 
         relative = fpath.relative_to(vault_root)
         rel_parts = relative.parts
-        if any(part.startswith(".") for part in rel_parts):
+        
+        # Check if path should be included based on hidden files configuration
+        if vault_cfg is None:
+            vault_cfg = {"includeHidden": False, "hiddenWhitelist": []}
+        if not should_include_path(rel_parts, vault_cfg):
             return None
 
         ext = fpath.suffix.lower()
@@ -614,8 +619,11 @@ async def update_single_file(vault_name: str, abs_file_path: str) -> Optional[Di
     if not vault_path:
         return None
 
+    # Get vault configuration for hidden files handling
+    vault_cfg = vault_data.get("config") or vault_config.get(vault_name, {})
+    
     loop = asyncio.get_event_loop()
-    file_info = await loop.run_in_executor(None, _index_single_file_sync, vault_name, vault_path, abs_file_path)
+    file_info = await loop.run_in_executor(None, _index_single_file_sync, vault_name, vault_path, abs_file_path, vault_cfg)
 
     lock = _get_async_lock()
     async with lock: