v0.6.1 - reinstated UI, relay > cortex pipeline working

docs/LLMS.md

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+Request Flow Chain
+1. UI (Frontend)
+   ↓ sends HTTP POST to
+   
+2. Relay Service (Node.js - server.js)
+   Location: /home/serversdown/project-lyra/core/relay/server.js
+   Port: 7078
+   Endpoint: POST /v1/chat/completions
+   ↓ calls handleChatRequest() which posts to
+   
+3. Cortex Service - Reason Endpoint (Python FastAPI - router.py)
+   Location: /home/serversdown/project-lyra/cortex/router.py
+   Port: 7081
+   Endpoint: POST /reason
+   Function: run_reason() at line 126
+   ↓ calls
+   
+4. Cortex Reasoning Module (reasoning.py)
+   Location: /home/serversdown/project-lyra/cortex/reasoning/reasoning.py
+   Function: reason_check() at line 188
+   ↓ calls
+   
+5. LLM Router (llm_router.py)
+   Location: /home/serversdown/project-lyra/cortex/llm/llm_router.py
+   Function: call_llm()
+   - Gets backend from env: CORTEX_LLM=PRIMARY (from .env line 29)
+   - Looks up PRIMARY config which has provider="mi50" (from .env line 13)
+   - Routes to the mi50 provider handler (line 62-70)
+   ↓ makes HTTP POST to
+   
+6. MI50 LLM Server (llama.cpp)
+   Location: http://10.0.0.44:8080
+   Endpoint: POST /completion
+   Hardware: AMD MI50 GPU running DeepSeek model
+Key Configuration Points
+Backend Selection: .env:29 sets CORTEX_LLM=PRIMARY
+Provider Name: .env:13 sets LLM_PRIMARY_PROVIDER=mi50
+Server URL: .env:14 sets LLM_PRIMARY_URL=http://10.0.0.44:8080
+Provider Handler: llm_router.py:62-70 implements the mi50 provider