fix(database): resolve foreign key constraint error

database/operations.py

@@ -312,6 +312,9 @@ class PromptDatabase:
             bool: True if deletion was successful, False otherwise
         """
         with self.model.get_connection() as conn:
+            # First delete related images to avoid foreign key constraint
+            conn.execute("DELETE FROM generated_images WHERE prompt_id = ?", (prompt_id,))
+            # Then delete the prompt
             cursor = conn.execute("DELETE FROM prompts WHERE id = ?", (prompt_id,))
             conn.commit()
             return cursor.rowcount > 0