合并本地领先源码：旧UI、GM疲劳燃烧、白金徽章孔、宠物修复、支援兵普攻开关

server/internal/services/dnfbridge/service.go

@@ -85,6 +85,12 @@ type Service struct {
 	// 配置按账号落库（repos.Settings），运行态按副本冻结；这把锁只保护那一段
 	// "读当前 revision → 校验 → 写回"的临界区，避免并发保存把 revision 撞掉。
 	companionConfigMu sync.Mutex
+	// companionPresenceMu guards the synthetic sessions that expose a volunteer
+	// in the native friend list / party frame. These sessions have no socket and
+	// are deliberately NOT stored in gameSessions: only the social and party
+	// projection helpers below may resolve them.
+	companionPresenceMu sync.Mutex
+	companionSessions   map[uint16]*gameSession
 
 	mu            sync.Mutex
 	catalog       *channelcatalog.Catalog