fix: handle channel send errors in watch_files.rs

[jdx]

Summary

• Replace .unwrap() on channel send in src/watch_files.rs:39 with let _ = to gracefully ignore errors
• The send can fail if the receiver is dropped during shutdown, which is expected behavior

Why this matters

Previously, if the WatchFiles struct was dropped while the file watcher callback was still active, the tx.send().await.unwrap() would panic. This could happen during normal shutdown sequences.

Test plan

• All 76 tests pass
• Clippy passes with no warnings

🤖 Generated with Claude Code

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Note

Prevents a potential panic during shutdown by making the file watcher’s send non-fatal.

• In src/watch_files.rs, replace tx.send(paths).await.unwrap() with let _ = tx.send(paths).await; inside the debouncer callback so send errors (e.g., receiver dropped) are ignored

^{Written by Cursor Bugbot for commit e16c30e. This will update automatically on new commits. Configure here.}

[Copilot]

Pull request overview

This PR fixes a potential panic during shutdown by gracefully handling channel send errors in the file watcher callback.

Changes:

• Replaced .unwrap() on channel send with let _ = to ignore send errors when the receiver is dropped during shutdown

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