fix - Timeout Handler Not Awaiting Async Cleanup

[0saurabh0]

preExit() is NOT awaited before process.exit(1).

This means when the 45-minute timeout fires, the process exits immediately without waiting for:

• SDK cache to be saved to R2 storage
• Any in-flight database writes to complete

This can cause data loss - cached adapter responses and computation results are lost, forcing re-computation on next run.

[0saurabh0]

@g1nt0ki, can you have a look here
Thanks