fix: avoid stale desktop auto-update checking state

[anthhub]

What

Fix desktop auto-update startup state so packaged macOS builds do not get stuck showing a stale checking/loading banner during automatic background update checks.

Why

On Apple Silicon packaged builds, the first visible update popup could remain in a checking/loading state for a long time before finally switching to downloading or ready. This made startup update UX feel broken and hid the real updater progress.

How

• only emit update:checking for user-initiated update checks
• keep automatic background checks silent in the main updater flow
• expose typed update:get-status state through the desktop host bridge
• hydrate the desktop auto-update hook from main-process status so renderer state catches up to background downloads / ready state
• add regression tests for background checks staying silent and for hook status hydration

Affected areas

• Desktop app (Electron shell)
• Controller (backend / API)
• Web dashboard (React UI)
• OpenClaw runtime
• Skills
• Shared schemas / packages
• Build / CI / Tooling

Checklist

• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes
• pnpm generate-types run (if API routes/schemas changed)
• No credentials or tokens in code or logs
• No any types introduced (use unknown with narrowing)

Screenshots / recordings

• Packaged arm64 + local mock feed regression now shows 正在下载更新… as the first visible update state instead of a stale checking/loading popup.

Notes for reviewers

• Verified end-to-end with a packaged arm64 app against a local mock update feed.
• Full local validation passed: pnpm typecheck, pnpm lint, pnpm test.

[sentry]

Codecov Report

❌ Patch coverage is 63.63636% with 20 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
apps/desktop/src/hooks/use-auto-update.ts	67.44%	14 Missing ⚠️
apps/desktop/main/updater/update-manager.ts	33.33%	6 Missing ⚠️

📢 Thoughts on this report? Let us know!

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