feat: enhance service discovery and proxy management

backend/app/api/proxy/router.py

@@ -1,7 +1,10 @@
 from pathlib import Path
 
+from core.config import settings
 from core.security import require_authenticated_user
 from fastapi import APIRouter, Depends, HTTPException, Request, status
+from integrations.docker import get_all_services_in_dir
+from integrations.docker.discovery import service_scan_root
 from models.example import AddonExampleCreateInput
 from models.proxy import ProxyCreateInput, ProxyUpdateInput
 from pymongo.errors import DuplicateKeyError
@@ -120,8 +123,12 @@ async def list_proxies_handler():
 
 
 @router.get("/services")
-async def list_services(request: Request):
-    return getattr(request.app.state, "services", [])
+async def list_services(request: Request, scan_root: str | None = None):
+    _ = settings
+    root = Path(scan_root).expanduser() if scan_root else service_scan_root()
+    services = get_all_services_in_dir(root)
+    request.app.state.services = services
+    return {"scan_root": str(root), "services": services}
 
 
 @router.get("/mitmproxy/options")