added multi node functionality

app/services/prometheus.py

@@ -14,12 +14,12 @@ async def query(promql: str) -> list:
         return r.json()["data"]["result"]
 
 
-async def get_nf_status() -> list:
-    """Return a list of {name, state, instance} for every known NF."""
+async def get_nf_status_map() -> dict[str, dict]:
+    """Return Prometheus-backed NF status keyed by display name."""
     try:
         results = await query("up")
     except Exception:
-        return [{"name": n, "state": "unknown", "instance": ""} for n in ALL_NFS]
+        return {n: {"name": n, "state": "unknown", "instance": ""} for n in ALL_NFS}
 
     seen: dict[str, dict] = {}
     for r in results:
@@ -38,4 +38,9 @@ async def get_nf_status() -> list:
         if n not in seen:
             seen[n] = {"name": n, "state": "unknown", "instance": ""}
 
-    return list(seen.values())
+    return seen
+
+
+async def get_nf_status() -> list:
+    """Return a list of {name, state, instance} for every known NF."""
+    return list((await get_nf_status_map()).values())