feat(session): 实现同平台抢登互踢功能，优化会话踢下线逻辑

新增同平台会话踢下线能力，将iOS/Android/mobile归为同一移动分组，web仅匹配web；扩展会话存储接口支持按平台、带原因踢除会话，同步更新集群广播逻辑与各调用点，统一传递踢下线原因参数

server/kafka_admin_commands.go

@@ -437,7 +437,7 @@ func executeKafkaUserGovernanceCommand(tenantID types.TenantID, envelope kafkaEn
 		}
 		evicted := 0
 		if globals.sessionStore != nil {
-			evicted = globals.sessionStore.EvictUserDevice(target, deviceID)
+			evicted = globals.sessionStore.EvictUserDevice(target, deviceID, "admin_device_kick")
 		}
 		publishRealtimeEvictDevice(tenantID, target, deviceID, "admin_device_kick")
 		if store.Devices != nil {
@@ -500,7 +500,7 @@ func executeKafkaUserPasswordResetCommand(tenantID types.TenantID, payload admin
 
 func evictUserSessions(tenantID types.TenantID, uid types.Uid) {
 	if globals.sessionStore != nil {
-		globals.sessionStore.EvictUser(uid, "")
+		globals.sessionStore.EvictUser(uid, "", "admin_user_evict")
 	}
 	publishRealtimeEvictUser(tenantID, uid, "admin_user_evict", "")
 }