feat: add BGE embedding service and reorganize supervisor groups

- Add vLLM embedding server for BAAI/bge-large-en-v1.5 (port 8002)
- Reorganize supervisor into two logical groups:
  - comfyui-services: comfyui, webdav-sync
  - vllm-services: vllm-qwen, vllm-llama, vllm-embedding
- Update arty.yml service management scripts for new group structure
- Add individual service control scripts for all vLLM models

Note: Embedding server currently uses placeholder implementation
For production use, switch to sentence-transformers or native vLLM embedding mode

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

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

supervisord.conf

@@ -73,6 +73,23 @@ environment=HF_HOME="../huggingface_cache",HF_TOKEN="%(ENV_HF_TOKEN)s"
 priority=201
 stopwaitsecs=30
 
+# vLLM BGE Embedding Server (Port 8002)
+[program:vllm-embedding]
+command=vllm/venv/bin/python vllm/server_embedding.py
+directory=.
+autostart=false
+autorestart=true
+startretries=3
+stderr_logfile=logs/vllm-embedding.err.log
+stdout_logfile=logs/vllm-embedding.out.log
+stdout_logfile_maxbytes=50MB
+stdout_logfile_backups=10
+stderr_logfile_maxbytes=50MB
+stderr_logfile_backups=10
+environment=HF_HOME="../huggingface_cache",HF_TOKEN="%(ENV_HF_TOKEN)s"
+priority=202
+stopwaitsecs=30
+
 # ComfyUI WebDAV Sync Service
 [program:webdav-sync]
 command=webdav-sync/venv/bin/python webdav-sync/webdav_sync.py
@@ -90,6 +107,10 @@ environment=WEBDAV_URL="%(ENV_WEBDAV_URL)s",WEBDAV_USERNAME="%(ENV_WEBDAV_USERNA
 priority=150
 stopwaitsecs=10
 
-[group:ai-services]
-programs=comfyui,vllm-qwen,vllm-llama,webdav-sync
-priority=999
+[group:comfyui-services]
+programs=comfyui,webdav-sync
+priority=100
+
+[group:vllm-services]
+programs=vllm-qwen,vllm-llama,vllm-embedding
+priority=200