feat(api): implement task management API with handlers for creating, listing, retrieving, and canceling tasks

- Added Handlers struct and methods for task operations
- Implemented task progress tracking and storage
- Created server setup with middleware for logging and recovery
- Added support for Telegram file extraction and Telegraph image extraction
- Introduced webhook functionality for task status updates
- Defined request and response types for API interactions

config.example.toml

@@ -29,6 +29,17 @@ secret = ""
 # 转存完成后删除 Aria2 下载的本地文件
 remove_after_transfer = true
 
+# HTTP API 配置
+[api]
+# 启用 HTTP API
+enable = false
+# 监听地址
+host = "0.0.0.0"
+# 监听端口
+port = 8080
+# 认证 Token (必需)
+token = ""
+
 # 存储列表
 [[storages]]
 # 标识名, 需要唯一