fix: allow members to query own group mute

server/db/mysql/tenant_groups.go

@@ -930,6 +930,24 @@ func (a *adapter) TenantGroupMuteList(id t.TenantID, topic, cursor string, limit
 	return items, next, rows.Err()
 }
 
+func (a *adapter) TenantGroupMuteGet(id t.TenantID, topic string, uid t.Uid) (*t.GroupMute, error) {
+	if tenantAdp, err := a.routeGroupTenant(id); err != nil {
+		return nil, err
+	} else if tenantAdp != a {
+		return tenantAdp.TenantGroupMuteGet(id, topic, uid)
+	}
+	if topic == "" || uid.IsZero() {
+		return nil, t.ErrMalformed
+	}
+	now := time.Now().UTC()
+	ctx, cancel := a.getContext()
+	if cancel != nil {
+		defer cancel()
+	}
+	return a.groupMuteByQuery(ctx, "SELECT "+groupMuteSelectColumns+" FROM im_group_mutes WHERE topic=? AND user_id=? AND status=? AND (expires_at IS NULL OR expires_at>?)",
+		topic, decodeUID(uid), t.GroupMuteStatusActive, now)
+}
+
 func (a *adapter) TenantGroupMuteUpsert(id t.TenantID, mute *t.GroupMute) (*t.GroupMute, error) {
 	if tenantAdp, err := a.routeGroupTenant(id); err != nil {
 		return nil, err