[codex] Add daemon lifecycle retry and visibility tests

[jwalin-shah]

Summary

• add deterministic tests for daemon lifecycle retry/backoff behavior
• cover max-attempt handling and reset behavior
• cover visibility-based pause/resume auto-start behavior

Problem

Daemon lifecycle behavior around retry timing and visibility-driven auto-start paths had no focused test coverage, making regressions in reconnect handling harder to catch.

Solution

Add a dedicated useDaemonLifecycle test file that uses fake timers, mocked daemon health hooks, and real daemon store state to verify retry growth, max-attempt cutoffs, reset behavior, and hidden/visible resume logic.

Submission Checklist

• Unit tests — targeted Vitest coverage added
• E2E / integration — N/A; hook-level lifecycle coverage only
• Doc comments — existing file-level docs remain sufficient
• Inline comments — added around the resume-vs-initial-auto-start timing distinction

Impact

No intended product behavior change. Improves confidence in daemon startup/reconnect behavior on the desktop app.

Related

• Issue(s): none
• Follow-up PR(s)/TODOs: none

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: a58a56ea-32ba-419f-8a9e-4b8624246efc

📥 Commits

Reviewing files that changed from the base of the PR and between b3b451f and 77c6482.

📒 Files selected for processing (1)

• app/src/hooks/__tests__/useDaemonLifecycle.test.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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