Add file deletion endpoint with multi-tag filtering support and redesigned editor UI with icon-only buttons

backend/search.py

@@ -8,6 +8,12 @@ from backend.indexer import index, get_vault_data
 logger = logging.getLogger("obsigate.search")
 
 
+def _normalize_tag_filter(tag_filter: Optional[str]) -> List[str]:
+    if not tag_filter:
+        return []
+    return [tag.strip().lstrip("#") for tag in tag_filter.split(",") if tag.strip()]
+
+
 def _read_file_content(vault_name: str, file_path: str) -> str:
     """Read raw markdown content of a file from disk."""
     vault_data = get_vault_data(vault_name)
@@ -52,8 +58,9 @@ def search(
     """
     query = query.strip() if query else ""
     has_query = len(query) > 0
+    selected_tags = _normalize_tag_filter(tag_filter)
 
-    if not has_query and not tag_filter:
+    if not has_query and not selected_tags:
         return []
 
     results: List[Dict[str, Any]] = []
@@ -63,7 +70,7 @@ def search(
             continue
 
         for file_info in vault_data["files"]:
-            if tag_filter and tag_filter not in file_info["tags"]:
+            if selected_tags and not all(tag in file_info["tags"] for tag in selected_tags):
                 continue
 
             score = 0