新增: AI工单处理工作台 v1.0

- Go Gin 后端 (19个源文件): 认证、工单CRUD、GLM AI分析、状态流转、备注、操作日志
- Arco Design Vue 前端: 登录、工单列表/详情/创建、AI分析触发与确认
- MySQL 5表: ticket_user/ticket_info/ticket_ai_analysis/ticket_operation_log/ticket_note
- 部署: tk.1216.top HTTPS, Nginx反代

backend/internal/config/config.go

@@ -0,0 +1,43 @@
+package config
+
+import (
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Server   ServerConfig   `mapstructure:"server"`
+	Database DatabaseConfig `mapstructure:"db"`
+	GLM      GLMConfig      `mapstructure:"glm"`
+}
+
+type ServerConfig struct {
+	Port int `mapstructure:"port"`
+}
+
+type DatabaseConfig struct {
+	Host     string `mapstructure:"host"`
+	Port     int    `mapstructure:"port"`
+	User     string `mapstructure:"user"`
+	Password string `mapstructure:"password"`
+	DBName   string `mapstructure:"dbname"`
+}
+
+type GLMConfig struct {
+	APIKey  string `mapstructure:"api_key"`
+	BaseURL string `mapstructure:"base_url"`
+	Model   string `mapstructure:"model"`
+}
+
+func Load(path string) (*Config, error) {
+	v := viper.New()
+	v.SetConfigFile(path)
+	v.SetConfigType("yaml")
+	if err := v.ReadInConfig(); err != nil {
+		return nil, err
+	}
+	var cfg Config
+	if err := v.Unmarshal(&cfg); err != nil {
+		return nil, err
+	}
+	return &cfg, nil
+}