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/request/admin/addressBook.go

@@ -27,7 +27,7 @@ type AddressBookForm struct {
 }
 
 func (a AddressBookForm) ToAddressBook() *model.AddressBook {
-	//tags转换
+	//tagsconvert
 	tags, _ := json.Marshal(a.Tags)
 
 	return &model.AddressBook{
@@ -52,7 +52,7 @@ func (a AddressBookForm) ToAddressBook() *model.AddressBook {
 
 }
 func (a AddressBookForm) ToAddressBooks() []*model.AddressBook {
-	//tags转换
+	//tagsconvert
 	tags, _ := json.Marshal(a.Tags)
 
 	abs := make([]*model.AddressBook, 0, len(a.UserIds))
@@ -92,7 +92,7 @@ type AddressBookQuery struct {
 
 type ShareByWebClientForm struct {
 	Id           string `json:"id" validate:"required"`
-	PasswordType string `json:"password_type" validate:"required,oneof=once fixed"` //只能是once,fixed
+	PasswordType string `json:"password_type" validate:"required,oneof=once fixed"` //can only be once,fixed
 	Password     string `json:"password" validate:"required"`
 	Expire       int64  `json:"expire"`
 }