fix: update API routes for sniffer and bridge operations for consistency

backend/src/network_api.py

@@ -350,7 +350,7 @@ def full_state(
         "bridges": get_bridges(),  # uses NDB internally
     }
 
-@router.post("/create")
+@router.post("/bridge/create")
 def create_bridge(req: BridgeCreateRequest, ip: IPRoute = Depends(get_iproute)):
     if bridge_exists(req.name, ip):
         raise HTTPException(400, f"Bridge {req.name} already exists")
@@ -382,7 +382,7 @@ def create_bridge(req: BridgeCreateRequest, ip: IPRoute = Depends(get_iproute)):
     }
 
 
-@router.post("/remove")
+@router.post("/bridge/remove")
 def remove_bridge(req: BridgeRemoveRequest, ip: IPRoute = Depends(get_iproute)):
     if not bridge_exists(req.name, ip):
         raise HTTPException(404, f"Bridge {req.name} not found")