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/sdk/message/email.go

@@ -0,0 +1,62 @@
+package message
+
+import (
+	"fmt"
+
+	"gopkg.in/gomail.v2"
+)
+
+// 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).
+
+
+type EmailMessage struct {
+	Server   string
+	Port     int
+	Account  string
+	Passwd   string
+	FromName string
+	GM       *gomail.Dialer
+}
+
+func (e *EmailMessage) Init(host string, port int, account string, passwd string, fromName string) {
+	e.Server = host
+	e.Port = port
+	e.Account = account
+	e.Passwd = passwd
+	e.FromName = fromName
+	e.GM = gomail.NewDialer(host, port, account, passwd)
+}
+
+func (e *EmailMessage) sendMessage(toEmail string, title string, content string, contentType string) string {
+	m := gomail.NewMessage()
+	if e.FromName != "" {
+		m.SetAddressHeader("From", e.Account, e.FromName)
+	} else {
+		m.SetHeader("From", e.Account)
+	}
+	m.SetHeader("To", toEmail)
+	m.SetHeader("Subject", title)
+	m.SetBody(contentType, content)
+
+	if err := e.GM.DialAndSend(m); err != nil {
+		return fmt.Sprintf("邮件发送失败: %s", err)
+	}
+	return ""
+}
+
+func (e *EmailMessage) SendTextMessage(toEmail string, title string, content string) string {
+	return e.sendMessage(toEmail, title, content, "text/plain")
+}
+
+func (e *EmailMessage) SendHtmlMessage(toEmail string, title string, content string) string {
+	return e.sendMessage(toEmail, title, content, "text/html")
+}