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/admin/config.go

@@ -13,10 +13,10 @@ import (
 type Config struct {
 }
 
-// ServerConfig RUSTDESK服务配置
+// ServerConfig RUSTDESKservice config
 // @Tags ADMIN
-// @Summary RUSTDESK服务配置
-// @Description 服务配置,给webclient提供api-server
+// @Summary RUSTDESKservice config
+// @Description service config, provides an api-server for the webclient
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response
@@ -33,10 +33,10 @@ func (co *Config) ServerConfig(c *gin.Context) {
 	response.Success(c, cf)
 }
 
-// AppConfig APP服务配置
+// AppConfig APPservice config
 // @Tags ADMIN
-// @Summary APP服务配置
-// @Description APP服务配置
+// @Summary APPservice config
+// @Description APPservice config
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response
@@ -49,10 +49,10 @@ func (co *Config) AppConfig(c *gin.Context) {
 	})
 }
 
-// AdminConfig ADMIN服务配置
+// AdminConfig ADMINservice config
 // @Tags ADMIN
-// @Summary ADMIN服务配置
-// @Description ADMIN服务配置
+// @Summary ADMINservice config
+// @Description ADMINservice config
 // @Accept  json
 // @Produce  json
 // @Success 200 {object} response.Response