feat(notify): 重构通信内核并补齐 stream/bulk/record/transfer 能力

- 引入 LogicalConn/TransportConn 分层，ClientConn 保留兼容适配层
  - 新增 Stream、Bulk、RecordStream 三条数据面能力及对应控制路径
  - 完成 transfer/file 传输内核与状态快照、诊断能力
  - 补齐 reconnect、inbound dispatcher、modern psk 等基础模块
  - 增加大规模回归、并发与基准测试覆盖
  - 更新依赖库

server_client_registry.go

@@ -0,0 +1,120 @@
+package notify
+
+import (
+	"net"
+	"sort"
+)
+
+func (s *ServerCommon) GetLogicalConn(id string) *LogicalConn {
+	registry := s.getPeerRegistry()
+	if registry == nil {
+		return nil
+	}
+	return registry.getLogical(id)
+}
+
+func (s *ServerCommon) GetClient(id string) *ClientConn {
+	logical := s.GetLogicalConn(id)
+	if logical == nil {
+		return nil
+	}
+	return logical.compatClientConn()
+}
+
+func (s *ServerCommon) GetCurrentTransportConn(id string) *TransportConn {
+	logical := s.GetLogicalConn(id)
+	if logical == nil {
+		return nil
+	}
+	return s.GetCurrentTransportConnByLogical(logical)
+}
+
+func (s *ServerCommon) GetCurrentTransportConnByLogical(c *LogicalConn) *TransportConn {
+	if c == nil {
+		return nil
+	}
+	return s.resolveOutboundTransport(c)
+}
+
+func (s *ServerCommon) resolveLogicalBySource(source string) *LogicalConn {
+	registry := s.getPeerRegistry()
+	if registry == nil {
+		return nil
+	}
+	return registry.resolveLogicalBySource(source)
+}
+
+func (s *ServerCommon) GetClientLists() []*ClientConn {
+	logicals := s.GetLogicalConnList()
+	list := make([]*ClientConn, 0, len(logicals))
+	for _, logical := range logicals {
+		client := logical.compatClientConn()
+		if client != nil {
+			list = append(list, client)
+		}
+	}
+	return list
+}
+
+func (s *ServerCommon) GetLogicalConnList() []*LogicalConn {
+	registry := s.getPeerRegistry()
+	if registry == nil {
+		return nil
+	}
+	return registry.logicalList()
+}
+
+func (s *ServerCommon) GetCurrentTransportConnList() []*TransportConn {
+	logicals := s.GetLogicalConnList()
+	list := make([]*TransportConn, 0, len(logicals))
+	for _, logical := range logicals {
+		if logical == nil {
+			continue
+		}
+		transport := s.resolveOutboundTransport(logical)
+		if transport == nil {
+			continue
+		}
+		list = append(list, transport)
+	}
+	sort.Slice(list, func(i int, j int) bool {
+		if list[i].ClientID() == list[j].ClientID() {
+			return list[i].TransportGeneration() < list[j].TransportGeneration()
+		}
+		return list[i].ClientID() < list[j].ClientID()
+	})
+	return list
+}
+
+func (s *ServerCommon) GetClientAddrs() []net.Addr {
+	logicals := s.GetLogicalConnList()
+	list := make([]net.Addr, 0, len(logicals))
+	for _, logical := range logicals {
+		addr := logical.RemoteAddr()
+		if addr == nil {
+			continue
+		}
+		list = append(list, addr)
+	}
+	return list
+}
+
+func (s *ServerCommon) snapshotDetachedLogicals() []*LogicalConn {
+	registry := s.getPeerRegistry()
+	if registry == nil {
+		return nil
+	}
+	list := registry.detachedLogicals()
+	sort.Slice(list, func(i int, j int) bool {
+		left := list[i]
+		right := list[j]
+		if left == nil || right == nil {
+			return left != nil
+		}
+		if left.ID() == right.ID() {
+			return addrString(left.RemoteAddr()) < addrString(right.RemoteAddr())
+		}
+		return left.ID() < right.ID()
+	})
+	return list
+}