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/router/api.go

@@ -18,7 +18,7 @@ func ApiInit(g *gin.Engine) {
 	if global.Config.App.ShowSwagger == 1 {
 		g.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler, ginSwagger.InstanceName("api")))
 	}
-	// 加载 HTML 模板
+	// load HTML template
 	g.LoadHTMLGlob("resources/templates/*")
 
 	frg := g.Group("/api")
@@ -33,7 +33,7 @@ func ApiInit(g *gin.Engine) {
 
 	{
 		l := &api.Login{}
-		// 如果返回oidc则可以通过oidc登录
+		// if oidc is returned, login via oidc is possible
 		frg.GET("/login-options", l.LoginOptions)
 		frg.POST("/login", l.Login)
 
@@ -56,7 +56,7 @@ func ApiInit(g *gin.Engine) {
 	}
 	{
 		pe := &api.Peer{}
-		//提交系统信息
+		//submit system info
 		frg.POST("/sysinfo", pe.SysInfo)
 		frg.POST("/sysinfo_ver", pe.SysInfoVer)
 	}
@@ -93,14 +93,14 @@ func ApiInit(g *gin.Engine) {
 
 	{
 		ab := &api.Ab{}
-		//获取地址
+		//get address
 		frg.GET("/ab", ab.Ab)
-		//更新地址
+		//update address
 		frg.POST("/ab", ab.UpAb)
 	}
 
 	PersonalRoutes(frg)
-	//访问静态文件
+	//access static files
 	g.StaticFS("/upload", http.Dir(global.Config.Gin.ResourcesPath+"/public/upload"))
 }