Greptile Summary

This PR fixes two timer leak issues in the Nostr extension:

1. nostr-profile.ts (publishProfileEvent): Stores the per-relay timeout handle and clears it in a finally block. This prevents unhandled promise rejections when pool.publish() resolves before the timeout fires.

2. nostr-profile-import.ts (importProfileFromRelays): Stores both the overall timeout handle and an array of per-relay subscription cleanup timers, then clears all of them in the inner finally block. This ensures timers don't fire after the race concludes, and also prevents them from running after pool.close(relays) has been called in the outer finally.

Both changes are minimal, non-functional, and preserve the existing safety nets (e.g., pool.close(relays) still runs to clean up subscriptions). All 288 existing tests pass.

Confidence Score: 5/5

• This PR is safe to merge — it makes targeted, minimal changes to fix timer leaks with no functional behavior changes.
• The changes are small, well-scoped, and correct: timer handles are properly stored and cleared in finally blocks, ensuring cleanup regardless of which promise wins the race. The existing safety net (pool.close) remains intact. All 288 existing tests pass, and no new code paths are introduced.
• No files require special attention.

_{Last reviewed commit: 9de9afd}

Closing — no maintainer engagement after 12 days. Happy to reopen if there's interest.