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/feishu.go

@@ -0,0 +1,56 @@
+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 FeishuChannel struct{ *BaseChannel }
+
+func NewFeishuChannel() Channel {
+	return &FeishuChannel{NewBaseChannel(ChannelFeishu, []string{FormatTypeMarkdown, FormatTypeText})}
+}
+
+func (c *FeishuChannel) Send(config ChannelConfig, msg *Message) (*Result, error) {
+	accessToken := config.GetString("access_token")
+	secret := config.GetString("secret")
+
+	if accessToken == "" {
+		return SendError("feishu config missing: access_token is required"), nil
+	}
+
+	contentType, formattedContent := c.FormatContent(msg)
+	atMobiles := msg.GetAtMobiles()
+	atUserIds := msg.GetAtUserIds()
+	atList := append(atMobiles, atUserIds...)
+	if msg.AtAll {
+		atList = append(atList, "all")
+	}
+
+	cli := message.Feishu{AccessToken: accessToken, Secret: secret}
+	var res []byte
+	var err error
+
+	switch contentType {
+	case FormatTypeText:
+		res, err = cli.SendMessageText(formattedContent, atList...)
+	case FormatTypeMarkdown:
+		res, err = cli.SendMessageMarkdown(msg.Title, formattedContent, atList...)
+	default:
+		return SendError("未知的飞书发送内容类型：%s", contentType), nil
+	}
+
+	if err != nil {
+		return ErrorResult(string(res), err), nil
+	}
+	return SuccessResult(string(res)), nil
+}