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/messenger/channels/telegram.go

@@ -0,0 +1,59 @@
+package channels
+
+import "github.com/engigu/taskpool/internal/sdk/message"
+
+// 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 TelegramChannel struct{ *BaseChannel }
+
+func NewTelegramChannel() Channel {
+	return &TelegramChannel{NewBaseChannel(ChannelTelegram, []string{FormatTypeMarkdown, FormatTypeHTML, FormatTypeText})}
+}
+
+func (c *TelegramChannel) Send(config ChannelConfig, msg *Message) (*Result, error) {
+	botToken := config.GetString("bot_token")
+	chatID := config.GetString("chat_id")
+	apiHost := config.GetString("api_host")
+	proxyURL := config.GetString("proxy_url")
+
+	if botToken == "" || chatID == "" {
+		return SendError("telegram config missing: bot_token, chat_id are required"), nil
+	}
+
+	contentType, formattedContent := c.FormatContent(msg)
+	cli := message.Telegram{
+		BotToken: botToken,
+		ChatID:   chatID,
+		ApiHost:  apiHost,
+		ProxyURL: proxyURL,
+	}
+
+	var res []byte
+	var err error
+
+	switch contentType {
+	case FormatTypeText:
+		res, err = cli.SendMessageText(formattedContent)
+	case FormatTypeMarkdown:
+		res, err = cli.SendMessageMarkdown(formattedContent)
+	case FormatTypeHTML:
+		res, err = cli.SendMessageHTML(formattedContent)
+	default:
+		return SendError("未知的Telegram发送内容类型：%s", contentType), nil
+	}
+
+	if err != nil {
+		return ErrorResult(string(res), err), nil
+	}
+	return SuccessResult(string(res)), nil
+}