feat: add BGE embedding model for concurrent operation with Llama

- Create config_bge.yaml for BAAI/bge-large-en-v1.5 on port 8002
- Reduce Llama VRAM to 70% and context to 16K for concurrent use
- Add BGE service to supervisor with vllm group

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

services/vllm/config_llama.yaml

@@ -2,7 +2,9 @@ model: meta-llama/Llama-3.1-8B-Instruct
 host: "0.0.0.0"
 port: 8001
 uvicorn-log-level: "info"
-gpu-memory-utilization: 0.95
-max-model-len: 20480
+gpu-memory-utilization: 0.70
+max-model-len: 16384
 dtype: auto
 enforce-eager: false
+enable-auto-tool-choice: true
+tool-call-parser: "llama3_json"