fix(tools): exit backfillProfiles script after completion

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/tools/seed/backfillProfiles.ts

@@ -107,4 +107,5 @@ export const backfillProfiles = async () => {
   payload.logger.info(`Profiles after: ${profilesAfterCount}`);
 };
 
-await backfillProfiles();
+await backfillProfiles();
+process.exit(0);