i18n: Translate all Chinese to English across the codebase

Translate Chinese comments, log/error messages, validator labels and
Swagger annotations to English throughout the source code, generated
Swagger docs, config files and CI workflows.

Make the English README primary: README.md now holds the English docs
and README_EN.md holds the Chinese version, with cross-language links
updated accordingly.

Note: the generated docs/ swagger files were translated in place; run
`go generate ./...` (swag init) to regenerate them from the now-English
annotations when a Go toolchain is available.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

http/controller/api/webClient.go

@@ -12,10 +12,10 @@ import (
 type WebClient struct {
 }
 
-// ServerConfig 服务配置
+// ServerConfig service config
 // @Tags WEBCLIENT
-// @Summary 服务配置
-// @Description 服务配置,给webclient提供api-server
+// @Summary service config
+// @Description service config, provides an api-server for the webclient
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response
@@ -42,10 +42,10 @@ func (i *WebClient) ServerConfig(c *gin.Context) {
 	)
 }
 
-// SharedPeer 分享的peer
+// SharedPeer shared peer
 // @Tags WEBCLIENT
-// @Summary 分享的peer
-// @Description 分享的peer
+// @Summary shared peer
+// @Description shared peer
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response
@@ -65,7 +65,7 @@ func (i *WebClient) SharedPeer(c *gin.Context) {
 		return
 	}
 	if sr.Expire != 0 {
-		//判断是否过期,created_at + expire > now
+		//check whether expired,created_at + expire > now
 		ca := time.Time(sr.CreatedAt)
 		if ca.Add(time.Second * time.Duration(sr.Expire)).Before(time.Now()) {
 			response.Fail(c, 101, "share expired")
@@ -89,10 +89,10 @@ func (i *WebClient) SharedPeer(c *gin.Context) {
 	})
 }
 
-// ServerConfigV2 服务配置
+// ServerConfigV2 service config
 // @Tags WEBCLIENT_V2
-// @Summary 服务配置
-// @Description 服务配置,给webclient提供api-server
+// @Summary service config
+// @Description service config, provides an api-server for the webclient
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response