Add Windows tray launcher and improve Bridge behavior on Windows

[11233321323]

Summary

This change adds a Windows tray launcher and improves Bridge behavior for Windows users.

• Add a WinForms tray launcher under apps/windows-tray with bilingual Chinese/English UI.
• Start, stop, restart, and inspect the Bridge from a desktop tray app without keeping a terminal window open.
• Add cross-platform npm lifecycle scripts so Windows users can run npm install and npm run bridge without WSL-only shell utilities.
• Relax the local Claude auth preflight so third-party or proxy-compatible runtimes can provide their own authentication.
• Merge Codex app-server thread listing with local session scanning so recent sessions appear without restarting Codex.
• Add Windows tray documentation and release notes.

Verification

• npx tsc --noEmit -p packages\bridge\tsconfig.json
• npm --workspace=packages/bridge run test:windows-smoke
• dotnet build apps\windows-tray\CCPocketTray.csproj -c Release

Notes

The tray launcher prefers the built Bridge output when available and falls back to the existing npm Bridge command during development. Build artifacts, local Cowart canvas drafts, and screenshots are ignored and not included in this PR.