feat: add PipeWire muter functionality and service files for Sendspin audio player

internal/live/http.go

@@ -259,6 +259,19 @@ type stateView struct {
 
 func (h *HTTPServer) getState(w http.ResponseWriter, _ *http.Request) {
 	active, pb, vol, members := h.mgr.State()
+	// Fill in names for offline members from the roster — the manager
+	// only knows names of currently-connected clients.
+	if len(members) > 0 {
+		roster := map[string]string{}
+		for _, e := range h.roster.List() {
+			roster[e.ClientID] = e.Name
+		}
+		for i := range members {
+			if members[i].Name == "" {
+				members[i].Name = roster[members[i].ClientID]
+			}
+		}
+	}
 	writeJSON(w, http.StatusOK, stateView{
 		ActivePreset: active,
 		Playback:     pb,