feat: 支持上传图片到钉钉平台，在图片生成流程中使用钉钉的图片 CDN 能力 (#225)

public/public.go

@@ -4,12 +4,16 @@ import (
 	"github.com/eryajf/chatgpt-dingtalk/config"
 	"github.com/eryajf/chatgpt-dingtalk/pkg/cache"
 	"github.com/eryajf/chatgpt-dingtalk/pkg/db"
+	"github.com/eryajf/chatgpt-dingtalk/pkg/dingbot"
 	"github.com/sashabaranov/go-openai"
 )
 
 var UserService cache.UserServiceInterface
 var Config *config.Configuration
 var Prompt *[]config.Prompt
+var DingTalkClientManager dingbot.DingTalkClientManagerInterface
+
+const DingTalkClientIdKeyName = "DingTalkClientId"
 
 func InitSvc() {
 	// 加载配置
@@ -18,6 +22,8 @@ func InitSvc() {
 	Prompt = config.LoadPrompt()
 	// 初始化缓存
 	UserService = cache.NewUserService()
+	// 初始化钉钉开放平台的客户端，用于访问上传图片等能力
+	DingTalkClientManager = dingbot.NewDingTalkClientManager(Config)
 	// 初始化数据库
 	db.InitDB()
 	// 暂时不在初始化时获取余额