- Fix: Limits usage fetch wraps BOTH token refresh and usage call inside proxy context (fixes SOCKS5 Codex accounts)
- Fix: CI integration test v1/models gracefully handles empty models list
- Fix: Settings proxy test button results now render with priority over health data
- Feat: Playground account selector dropdown for testing specific connections
- Merge: PR #623 LongCat API base URL path correction
Introduce full AI orchestration ecosystem:
- MCP Server with 16 tools, scoped auth, and audit logging
- A2A v0.3 server with JSON-RPC 2.0, SSE streaming, and task manager
- Auto-Combo engine with 6-factor scoring and self-healing
- VS Code extension with smart dispatch and budget tracking
- Harden CI pipeline: add static checks, remove continue-on-error
- Add translator schema validation tests
- Update .gitignore and CHANGELOG for release checklist
