v3.11.0: merge cobra PR, smart-continue, hot-reload, XML extraction
- Merge PR #5 from cobra91: concurrency semaphore, auto-continue, SO_REUSEADDR,
proxy-stderr.log, stream diagnostics, timeout handler, restart proxy fix
- Tool call argument normalizer, smart-continue loop, XML extraction
- API key hot-reload with mtime tracking + /admin/ endpoints
- GUI hot-reload on endpoint edit with upstream verification
- Synthetic tool-results disabled (caused deepseek-v4-pro truncation)
- Version bump 3.10.12 -> 3.11.0, rebuild .deb