feat: 重构前后端架构，添加Go后端和Python Agent服务

- 新增 Go 语言后端服务(server/)，包含用户认证、Agent管理、数据库连接等API
- 新增 Python Agent 服务(agent/)，实现Agent核心逻辑和工具集
- 前端从原生HTML迁移到Vue.js框架(web/src/)
- 添加 Docker Compose 支持(docker-compose.yml)
- 添加项目架构文档(docs/ARCHITECTURE.md)
- 添加环境变量示例(.env.example)和本地启动脚本(start-local.ps1)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/temp_reset.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+func main() {
+	dsn := "root:881116142@tcp(10.10.10.189:3306)/mysql?charset=utf8mb4&parseTime=True&loc=Local&allowOldStrings=true"
+	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
+	if err != nil {
+		panic("连接失败: " + err.Error())
+	}
+
+	// 删除所有 root 用户
+	sqls := []string{
+		"DROP USER IF EXISTS 'root'@'%'",
+		"DROP USER IF EXISTS 'root'@'10.10.10.122'",
+		"DROP USER IF EXISTS 'root'@'localhost'",
+		"DROP USER IF EXISTS 'root'@'127.0.0.1'",
+		"CREATE USER 'root'@'%' IDENTIFIED BY '881116142'",
+		"GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION",
+		"FLUSH PRIVILEGES",
+	}
+
+	for _, sql := range sqls {
+		if err := db.Exec(sql).Error; err != nil {
+			println("执行: " + sql + " - 错误: " + err.Error())
+		} else {
+			println("成功: " + sql)
+		}
+	}
+
+	println("完成!")
+}