Rename data to app.py

data → app.py

@@ -9,4 +9,8 @@ def init_sqlite_db():
     c = conn.cursor()
     # ... rest of the database initialization code ...
     conn.commit()
-    return conn
+    return conn
+    # Create file storage directory
+os.makedirs('/data/files', exist_ok=True)
+if not os.access('/data/files', os.W_OK):
+    raise PermissionError("No write permission for /data/files directory")