[Bug]: CLI daemon silently swallows 39+ errors via empty .catch()

[GenerQAQ]

Describe the Bug

39+ instances of .catch(() => {}) throughout src/cli/daemon/daemon.ts and session-runner.ts. Errors are silently swallowed, making production debugging extremely difficult.

To Reproduce

1. Trigger any error in daemon polling, WebSocket handling, or task dispatch
2. No error output is visible anywhere

Expected Behavior

Errors should be logged with structured logging. Fatal errors should be distinguished from transient ones.

Environment

• Package: @alook/cli

Additional Context

From architecture health scan 2026-05-31 (finding W3).