feat(api): add live status tracking for speakers and BGP sessions

- Introduced new schemas for `SpeakerLiveStatus`, `BgpSessionLive`, and `LiveSpeakerPoll` in OpenAPI documentation to support live status queries.
- Enhanced the `/v1/speakers` endpoint to include a `live` query parameter, allowing retrieval of real-time speaker and BGP status.
- Updated the HTTP API to collect and return live status data for speakers, improving monitoring capabilities.
- Modified frontend components to display live status information, enhancing user visibility into speaker health and BGP session states.
- Added a new endpoint `/v1/bird/status` for retrieving the local BIRD status, further enriching the network monitoring features.

internal/httpapi/routes.go

@@ -385,9 +385,22 @@ func (s *Server) handleListSpeakers(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	speakers := s.store.ListSpeakersForTenant(a.TenantID)
+	fresh := r != nil && strings.EqualFold(strings.TrimSpace(r.URL.Query().Get("live")), "1")
+	var liveByID map[string]map[string]any
+	if fresh {
+		ctx, cancel := context.WithTimeout(r.Context(), 12*time.Second)
+		defer cancel()
+		liveByID = s.collectSpeakerLiveStatus(ctx, a.TenantID, true, speakers)
+	}
 	items := make([]map[string]any, 0, len(speakers))
 	for _, sp := range speakers {
-		items = append(items, speakerJSONFromStore(s.store, sp))
+		row := speakerJSONFromStore(s.store, sp)
+		if liveByID != nil {
+			if live, ok := liveByID[sp.ID]; ok {
+				row["live"] = live
+			}
+		}
+		items = append(items, row)
 	}
 	writeJSON(w, http.StatusOK, map[string]any{
 		"items": items, "next_cursor": nil, "has_more": false,