feat: improve

[MusicMaster4]

Summary

• Improved agent reliability and performance with optimized projections, resilient Codex transport and reconnect behavior, synchronized transport preferences, and HTTP fallback for oversized histories.
• Unified and refreshed the mobile companion experience, improving workspace sync, storage efficiency, filtering, and agent interactions.
• Hardened public port sharing and relay delivery: added browser-style readiness checks, streaming and compressed-response handling, ownership checks, reconnect grace periods, and expired-delivery cleanup.
• Expanded workspace and agent features, including persisted tab groups and recovery, scheduled sends, usage and quota improvements, Markdown assets and local links, and a CLI proxy dashboard.

Test plan

• Run the Bun test suite and TypeScript checks.
• Run Rust checks and port-sharing tests.
• Run Android tests for the mobile experience and storage changes.