Revert ranked functions to show all annotations

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/app/protein/tsv_loader.py

@@ -194,11 +194,11 @@ def get_sequence(pdb_id: str, auth_asym_id: str) -> Tuple[Optional[str], Optiona
 
 
 def get_functions(pdb_id: str, auth_asym_id: str) -> Optional[List[str]]:
-    """Return ranked GO-term annotations for a chain, or None if not in node table."""
+    """Return ranked function list for a chain, or None if not in node table."""
     row = get_node_row(pdb_id, auth_asym_id)
     if row is None:
         return None
-    return [f for f in _parse_functions(row["ranked_functions"]) if f.startswith("The GO term")]
+    return _parse_functions(row["ranked_functions"])
 
 
 def get_state_id(pdb_id: str, auth_asym_id: str) -> Optional[str]: