Initial commit: TaskPool React panel

- React frontend with route-level code splitting
- Backend rebranded from Baihu to TaskPool
- DB brand migration script and local compatibility

internal/tunnel/conn.go

@@ -0,0 +1,98 @@
+package tunnel
+
+import (
+	"io"
+	"net"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+// Copyright (c) 2026 engigu (TaskPool). All rights reserved.
+// Use of this source code is governed by the Apache License 2.0.
+// 
+// 【重要声明 / IMPORTANT NOTICE】
+// 本代码（包括其架构设计与核心实现）属于任务池（TaskPool）开源项目的一部分。
+// 任何个人或组织在引用、移植、修改或重新分发此文件中的任何代码时，必须保留本版权声明，
+// 并在您的衍生作品、文档、软件关于页面或说明文件中显式声明引用自任务池（TaskPool）。
+// 
+// Anyone referencing, porting, modifying, or redistributing this code must retain this 
+// copyright notice and explicitly state the source: TaskPool (github.com/engigu/taskpool).
+
+// wsConn 包装 gorilla websocket 以实现 net.Conn 接口
+type wsConn struct {
+	conn   *websocket.Conn
+	reader io.Reader
+}
+
+// NetConn 将 WebSocket 连接转换为标准 net.Conn
+func NetConn(conn *websocket.Conn) net.Conn {
+	return &wsConn{
+		conn: conn,
+	}
+}
+
+func (c *wsConn) Read(b []byte) (n int, err error) {
+	for {
+		if c.reader == nil {
+			_, r, err := c.conn.NextReader()
+			if err != nil {
+				return 0, err
+			}
+			c.reader = r
+		}
+		n, err = c.reader.Read(b)
+		if err == io.EOF {
+			c.reader = nil
+			if n > 0 {
+				return n, nil
+			}
+			continue
+		}
+		return n, err
+	}
+}
+
+func (c *wsConn) Write(b []byte) (n int, err error) {
+	// Yamux 保证了对底层连接的序列化写入（不会出现并发写），
+	// 因此我们这里不需要加互斥锁 (Mutex)。
+	w, err := c.conn.NextWriter(websocket.BinaryMessage)
+	if err != nil {
+		return 0, err
+	}
+	n, err = w.Write(b)
+
+	// 必须关闭 writer 以触发 WebSocket 的消息帧封包发送
+	closeErr := w.Close()
+	if err == nil {
+		err = closeErr
+	}
+	return n, err
+}
+
+func (c *wsConn) Close() error {
+	return c.conn.Close()
+}
+
+func (c *wsConn) LocalAddr() net.Addr {
+	return c.conn.LocalAddr()
+}
+
+func (c *wsConn) RemoteAddr() net.Addr {
+	return c.conn.RemoteAddr()
+}
+
+func (c *wsConn) SetDeadline(t time.Time) error {
+	if err := c.conn.SetReadDeadline(t); err != nil {
+		return err
+	}
+	return c.conn.SetWriteDeadline(t)
+}
+
+func (c *wsConn) SetReadDeadline(t time.Time) error {
+	return c.conn.SetReadDeadline(t)
+}
+
+func (c *wsConn) SetWriteDeadline(t time.Time) error {
+	return c.conn.SetWriteDeadline(t)
+}