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/userToken.go

@@ -13,15 +13,15 @@ import (
 type UserToken struct {
 }
 
-// List 列表
-// @Tags 登录凭证
-// @Summary 登录凭证列表
-// @Description 登录凭证列表
+// List list
+// @Tags login credential
+// @Summary login credential list
+// @Description login credential list
 // @Accept  json
 // @Produce  json
-// @Param page query int false "页码"
-// @Param page_size query int false "页大小"
-// @Param user_id query int false "用户ID"
+// @Param page query int false "page number"
+// @Param page_size query int false "page size"
+// @Param user_id query int false "userID"
 // @Success 200 {object} response.Response{data=model.UserTokenList}
 // @Failure 500 {object} response.Response
 // @Router /admin/user_token/list [get]
@@ -41,13 +41,13 @@ func (ct *UserToken) List(c *gin.Context) {
 	response.Success(c, res)
 }
 
-// Delete 删除
-// @Tags 登录凭证
-// @Summary 登录凭证删除
-// @Description 登录凭证删除
+// Delete delete
+// @Tags login credential
+// @Summary delete login credential
+// @Description delete login credential
 // @Accept  json
 // @Produce  json
-// @Param body body model.UserToken true "登录凭证信息"
+// @Param body body model.UserToken true "login credential info"
 // @Success 200 {object} response.Response
 // @Failure 500 {object} response.Response
 // @Router /admin/user_token/delete [post]
@@ -82,13 +82,13 @@ func (ct *UserToken) Delete(c *gin.Context) {
 	response.Fail(c, 101, response.TranslateMsg(c, "ItemNotFound"))
 }
 
-// BatchDelete 批量删除
-// @Tags 登录凭证
-// @Summary 登录凭证批量删除
-// @Description 登录凭证批量删除
+// BatchDelete batch delete
+// @Tags login credential
+// @Summary batch delete login credentials
+// @Description batch delete login credentials
 // @Accept  json
 // @Produce  json
-// @Param body body admin.UserTokenBatchDeleteForm true "登录凭证信息"
+// @Param body body admin.UserTokenBatchDeleteForm true "login credential info"
 // @Success 200 {object} response.Response
 // @Failure 500 {object} response.Response
 // @Router /admin/user_token/batchDelete [post]