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_bge.yaml

@@ -0,0 +1,7 @@
+model: BAAI/bge-large-en-v1.5
+host: "0.0.0.0"
+port: 8002
+uvicorn-log-level: "info"
+gpu-memory-utilization: 0.15
+dtype: float16
+task: embed