4b5960ada6
- llm_coordinator.py: LLMCoordinator server (runs in Nexus) FIFO queue + semaphore, max_concurrent configurable local_acquire/release for Nexus, MQTT request/release for sub-agents - base_agent.py: _llm_slot_acquire/_llm_slot_release around _llm_loop MQTT round-trip to agents/llm/request, 90s timeout degraded fallback Enabled via use_llm_coordinator: true in config Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>