Sort CSV aliases by UDISE code on save

alias_store.py

@@ -114,6 +114,9 @@ def save_aliases(new_entries: list[dict]) -> str:
         return f"ℹ️ All {skipped_count} name(s) already in CSV — nothing new to save."
 
     df = pd.concat([df, pd.DataFrame(new_rows)], ignore_index=True)
+    
+    # Sort by UDISE so all aliases for the same school are grouped together in Excel
+    df = df.sort_values(by=["UDISE_Code", "Source"]).reset_index(drop=True)
 
     # Upload to HF
     try: