From e7d483620cbd8c9e4699c69cb303f424eeec935b Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:28:41 +0800
Subject: [PATCH 1/9] feat: Implement language caching and improve language
 handling in i18n module

---
 core/app/service/setting.go |  2 +
 core/i18n/i18n.go           | 84 ++++++++++++++++++++++++-------------
 2 files changed, 58 insertions(+), 28 deletions(-)

diff --git a/core/app/service/setting.go b/core/app/service/setting.go
index 0741bd82d7bd..b1e4c819f7ef 100644
--- a/core/app/service/setting.go
+++ b/core/app/service/setting.go
@@ -26,6 +26,7 @@ import (
 	"github.com/1Panel-dev/1Panel/core/buserr"
 	"github.com/1Panel-dev/1Panel/core/constant"
 	"github.com/1Panel-dev/1Panel/core/global"
+	"github.com/1Panel-dev/1Panel/core/i18n"
 	"github.com/1Panel-dev/1Panel/core/utils/common"
 	"github.com/1Panel-dev/1Panel/core/utils/controller"
 	"github.com/1Panel-dev/1Panel/core/utils/encrypt"
@@ -148,6 +149,7 @@ func (u *SettingService) Update(key, value string) error {
 	case "UserName", "Password":
 		_ = global.SESSION.Clean()
 	case "Language":
+		i18n.SetCachedDBLanguage(value)
 		if err := xpack.Sync(constant.SyncLanguage); err != nil {
 			global.LOG.Errorf("sync language to node failed, err: %v", err)
 		}
diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 802a60850d17..c5db242e966e 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -2,8 +2,10 @@ package i18n
 
 import (
 	"embed"
-	"github.com/1Panel-dev/1Panel/core/app/repo"
 	"strings"
+	"sync/atomic"
+
+	"github.com/1Panel-dev/1Panel/core/app/repo"
 
 	"github.com/1Panel-dev/1Panel/core/global"
 
@@ -13,6 +15,23 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
+const defaultLang = "en"
+
+var langFiles = map[string]string{
+	"zh":      "lang/zh.yaml",
+	"en":      "lang/en.yaml",
+	"zh-Hant": "lang/zh-Hant.yaml",
+	"fa":      "lang/fa.yaml",
+	"pt":      "lang/pt.yaml",
+	"pt-BR":   "lang/pt-BR.yaml",
+	"ja":      "lang/ja.yaml",
+	"ru":      "lang/ru.yaml",
+	"ms":      "lang/ms.yaml",
+	"ko":      "lang/ko.yaml",
+	"tr":      "lang/tr.yaml",
+	"es-ES":   "lang/es-ES.yaml",
+}
+
 func GetMsgWithMap(key string, maps map[string]interface{}) string {
 	var content string
 	if maps == nil {
@@ -112,43 +131,35 @@ var bundle *i18n.Bundle
 
 func UseI18n() gin.HandlerFunc {
 	return func(context *gin.Context) {
-		lang := context.GetHeader("Accept-Language")
-		if lang == "" {
-			lang = GetLanguageFromDB()
-		}
-		global.I18n = i18n.NewLocalizer(bundle, lang)
+		global.I18n = i18n.NewLocalizer(bundle, GetLanguage())
 	}
 }
 
 func Init() {
 	bundle = i18n.NewBundle(language.Chinese)
 	bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/zh.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/en.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/zh-Hant.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/fa.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/pt.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/pt-BR.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/ja.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/ru.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/ms.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/ko.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/tr.yaml")
-	_, _ = bundle.LoadMessageFileFS(fs, "lang/es-ES.yaml")
-	lang := GetLanguageFromDB()
-	global.I18n = i18n.NewLocalizer(bundle, lang)
+
+	for _, file := range langFiles {
+		if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
+			global.LOG.Warnf("failed to load language file %s: %v", file, err)
+		}
+	}
+
+	dbLang := getLanguageFromDBInternal()
+	SetCachedDBLanguage(dbLang)
+	if dbLang == "" {
+		dbLang = defaultLang
+	}
+	global.I18n = i18n.NewLocalizer(bundle, dbLang)
 }
 
 func UseI18nForCmd(lang string) {
 	if lang == "" {
-		lang = "en"
-	}
-
-	if bundle == nil {
-		Init()
+		lang = defaultLang
 	}
 	global.I18nForCmd = i18n.NewLocalizer(bundle, lang)
 }
+
 func GetMsgByKeyForCmd(key string) string {
 	if global.I18nForCmd == nil {
 		UseI18nForCmd("")
@@ -158,6 +169,7 @@ func GetMsgByKeyForCmd(key string) string {
 	})
 	return content
 }
+
 func GetMsgWithMapForCmd(key string, maps map[string]interface{}) string {
 	if global.I18nForCmd == nil {
 		UseI18nForCmd("")
@@ -181,13 +193,29 @@ func GetMsgWithMapForCmd(key string, maps map[string]interface{}) string {
 	}
 }
 
-func GetLanguageFromDB() string {
+func getLanguageFromDBInternal() string {
 	if global.DB == nil {
-		return "en"
+		return defaultLang
 	}
 	lang, _ := repo.NewISettingRepo().GetValueByKey("Language")
 	if lang == "" {
-		return "en"
+		return defaultLang
 	}
 	return lang
 }
+
+var cachedDBLang atomic.Value
+
+func GetLanguage() string {
+	if v := cachedDBLang.Load(); v != nil {
+		return v.(string)
+	}
+	return defaultLang
+}
+
+func SetCachedDBLanguage(lang string) {
+	if lang == "" {
+		lang = defaultLang
+	}
+	cachedDBLang.Store(lang)
+}

From 83874f4c2738731b2c02dccdbb5c90a85fe8bdce Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:35:28 +0800
Subject: [PATCH 2/9] refactor: Optimize i18n initialization with sync.Once for
 thread safety

---
 core/i18n/i18n.go | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index c5db242e966e..e57824ed6f96 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -3,6 +3,7 @@ package i18n
 import (
 	"embed"
 	"strings"
+	"sync"
 	"sync/atomic"
 
 	"github.com/1Panel-dev/1Panel/core/app/repo"
@@ -136,24 +137,29 @@ func UseI18n() gin.HandlerFunc {
 }
 
 func Init() {
-	bundle = i18n.NewBundle(language.Chinese)
-	bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
-
-	for _, file := range langFiles {
-		if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
-			global.LOG.Warnf("failed to load language file %s: %v", file, err)
+	initOnce.Do(func() {
+		bundle = i18n.NewBundle(language.Chinese)
+		bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
+
+		for _, file := range langFiles {
+			if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
+				global.LOG.Warnf("failed to load language file %s: %v", file, err)
+			}
 		}
-	}
 
-	dbLang := getLanguageFromDBInternal()
-	SetCachedDBLanguage(dbLang)
-	if dbLang == "" {
-		dbLang = defaultLang
-	}
-	global.I18n = i18n.NewLocalizer(bundle, dbLang)
+		dbLang := getLanguageFromDBInternal()
+		SetCachedDBLanguage(dbLang)
+		if dbLang == "" {
+			dbLang = defaultLang
+		}
+		global.I18n = i18n.NewLocalizer(bundle, dbLang)
+	})
 }
 
 func UseI18nForCmd(lang string) {
+	if bundle == nil {
+		Init()
+	}
 	if lang == "" {
 		lang = defaultLang
 	}
@@ -205,6 +211,7 @@ func getLanguageFromDBInternal() string {
 }
 
 var cachedDBLang atomic.Value
+var initOnce sync.Once
 
 func GetLanguage() string {
 	if v := cachedDBLang.Load(); v != nil {

From 18114c545ab43626b7599472bd37ad56efe45ef3 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:40:23 +0800
Subject: [PATCH 3/9] fix: Replace logging with fmt.Println for language file
 loading errors in i18n module

---
 core/i18n/i18n.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index e57824ed6f96..8e5d335d9fbe 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -2,6 +2,7 @@ package i18n
 
 import (
 	"embed"
+	"fmt"
 	"strings"
 	"sync"
 	"sync/atomic"
@@ -143,7 +144,7 @@ func Init() {
 
 		for _, file := range langFiles {
 			if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
-				global.LOG.Warnf("failed to load language file %s: %v", file, err)
+				fmt.Println("failed to load language file %s: %v", file, err)
 			}
 		}
 

From b057a4b1bdc8048e5fb02efcc08bee3146627450 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:42:06 +0800
Subject: [PATCH 4/9] fix: Correct format string in error logging for language
 file loading in i18n module

---
 core/i18n/i18n.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 8e5d335d9fbe..0438761f21a7 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -144,7 +144,7 @@ func Init() {
 
 		for _, file := range langFiles {
 			if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
-				fmt.Println("failed to load language file %s: %v", file, err)
+				fmt.Printf("failed to load language file %s: %v\n", file, err)
 			}
 		}
 

From bf437900428466f9b70e3f57cccb1d0d5232b381 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:55:07 +0800
Subject: [PATCH 5/9] fix: Update language files and improve error handling in
 i18n module

---
 core/i18n/i18n.go           | 10 +++++++---
 core/i18n/lang/en.yaml      | 10 +++++-----
 core/i18n/lang/es-ES.yaml   | 10 +++++-----
 core/i18n/lang/ja.yaml      | 10 +++++-----
 core/i18n/lang/ko.yaml      | 10 +++++-----
 core/i18n/lang/pt-BR.yaml   | 10 +++++-----
 core/i18n/lang/ru.yaml      | 10 +++++-----
 core/i18n/lang/tr.yaml      | 10 +++++-----
 core/i18n/lang/zh-Hant.yaml | 10 +++++-----
 9 files changed, 47 insertions(+), 43 deletions(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 0438761f21a7..911e80e94af4 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -23,12 +23,10 @@ var langFiles = map[string]string{
 	"zh":      "lang/zh.yaml",
 	"en":      "lang/en.yaml",
 	"zh-Hant": "lang/zh-Hant.yaml",
-	"fa":      "lang/fa.yaml",
-	"pt":      "lang/pt.yaml",
 	"pt-BR":   "lang/pt-BR.yaml",
 	"ja":      "lang/ja.yaml",
 	"ru":      "lang/ru.yaml",
-	"ms":      "lang/ms.yaml",
+	"ms":      "lang/ms.yml",
 	"ko":      "lang/ko.yaml",
 	"tr":      "lang/tr.yaml",
 	"es-ES":   "lang/es-ES.yaml",
@@ -142,12 +140,18 @@ func Init() {
 		bundle = i18n.NewBundle(language.Chinese)
 		bundle.RegisterUnmarshalFunc("yaml", yaml.Unmarshal)
 
+		isSuccess := true
 		for _, file := range langFiles {
 			if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
 				fmt.Printf("failed to load language file %s: %v\n", file, err)
+				isSuccess = false
 			}
 		}
 
+		if !isSuccess {
+			panic("failed to load language files, See log above for details")
+		}
+
 		dbLang := getLanguageFromDBInternal()
 		SetCachedDBLanguage(dbLang)
 		if dbLang == "" {
diff --git a/core/i18n/lang/en.yaml b/core/i18n/lang/en.yaml
index ebf786366d88..6579df3fad67 100644
--- a/core/i18n/lang/en.yaml
+++ b/core/i18n/lang/en.yaml
@@ -37,11 +37,11 @@ MasterNode: "Master Node"
 # app
 CustomAppStoreFileValid: "Application store package requires .tar.gz format"
 ErrFileNotFound: "{{ .name }} file does not exist"
-AppBackup: 'Application backup',
-AppBackupPush: 'Transfer application backup file {{.file}} to node {{ .name }}',
-ErrSourceTargetSame: 'Source node and target node cannot be the same!',
-AppInstall: 'Install application {{ .name }} on node {{ .targetNode }}',
-AppInstallCheck: 'Check application installation environment',
+AppBackup: 'Application backup'
+AppBackupPush: 'Transfer application backup file {{.file}} to node {{ .name }}'
+ErrSourceTargetSame: 'Source node and target node cannot be the same!'
+AppInstall: 'Install application {{ .name }} on node {{ .targetNode }}'
+AppInstallCheck: 'Check application installation environment'
 
 # backup
 ErrBackupInUsed: "This backup account is used in scheduled tasks and cannot be deleted"
diff --git a/core/i18n/lang/es-ES.yaml b/core/i18n/lang/es-ES.yaml
index efce69f02bd0..f4dff0f456ca 100644
--- a/core/i18n/lang/es-ES.yaml
+++ b/core/i18n/lang/es-ES.yaml
@@ -37,11 +37,11 @@ MasterNode: "Nodo Maestro"
 # app
 CustomAppStoreFileValid: "El paquete de la tienda de aplicaciones debe tener formato .tar.gz"
 ErrFileNotFound: "El archivo {{ .name }} no existe"
-AppBackup: 'Copia de seguridad de aplicación',
-AppBackupPush: 'Transferir archivo de copia de seguridad de aplicación {{.file}} al nodo {{ .name }}',
-ErrSourceTargetSame: '¡El nodo de origen y el nodo de destino no pueden ser el mismo!',
-AppInstall: 'Instalar aplicación {{ .name }} en nodo {{ .targetNode }}',
-AppInstallCheck: 'Verificar entorno de instalación de aplicación',
+AppBackup: 'Copia de seguridad de aplicación'
+AppBackupPush: 'Transferir archivo de copia de seguridad de aplicación {{.file}} al nodo {{ .name }}'
+ErrSourceTargetSame: '¡El nodo de origen y el nodo de destino no pueden ser el mismo!'
+AppInstall: 'Instalar aplicación {{ .name }} en nodo {{ .targetNode }}'
+AppInstallCheck: 'Verificar entorno de instalación de aplicación'
 
 # backup
 ErrBackupInUsed: "Esta cuenta de respaldo se utiliza en tareas programadas y no se puede eliminar"
diff --git a/core/i18n/lang/ja.yaml b/core/i18n/lang/ja.yaml
index a120817ea3bf..fe2d19913b10 100644
--- a/core/i18n/lang/ja.yaml
+++ b/core/i18n/lang/ja.yaml
@@ -37,11 +37,11 @@ MasterNode: "マスターノード"
 # app
 CustomAppStoreFileValid: "アプリストアパッケージは .tar.gz 形式である必要があります"
 ErrFileNotFound: "{{ .name }} ファイルが存在しません"
-AppBackup: 'アプリケーションバックアップ',
-AppBackupPush: 'アプリケーションバックアップファイル {{.file}} をノード {{ .name }} に転送',
-ErrSourceTargetSame: 'ソースノードとターゲットノードは同じにできません！',
-AppInstall: 'ノード {{ .targetNode }} にアプリケーション {{ .name }} をインストール',
-AppInstallCheck: 'アプリケーションインストール環境を確認',
+AppBackup: 'アプリケーションバックアップ'
+AppBackupPush: 'アプリケーションバックアップファイル {{.file}} をノード {{ .name }} に転送'
+ErrSourceTargetSame: 'ソースノードとターゲットノードは同じにできません！'
+AppInstall: 'ノード {{ .targetNode }} にアプリケーション {{ .name }} をインストール'
+AppInstallCheck: 'アプリケーションインストール環境を確認'
 
 # backup
 ErrBackupInUsed: "このバックアップアカウントはスケジュールタスクで使用されており、削除できません"
diff --git a/core/i18n/lang/ko.yaml b/core/i18n/lang/ko.yaml
index 22149304abb5..2508f1a47949 100644
--- a/core/i18n/lang/ko.yaml
+++ b/core/i18n/lang/ko.yaml
@@ -37,11 +37,11 @@ MasterNode: "마스터 노드"
 # app
 CustomAppStoreFileValid: "앱 스토어 패키지는 .tar.gz 형식이어야 합니다"
 ErrFileNotFound: "{{ .name }} 파일이 존재하지 않습니다"
-AppBackup: '애플리케이션 백업',
-AppBackupPush: '애플리케이션 백업 파일 {{.file}}을(를) 노드 {{ .name }}(으)로 전송',
-ErrSourceTargetSame: '소스 노드와 대상 노드는 동일할 수 없습니다!',
-AppInstall: '노드 {{ .targetNode }}에 애플리케이션 {{ .name }} 설치',
-AppInstallCheck: '애플리케이션 설치 환경 확인',
+AppBackup: '애플리케이션 백업'
+AppBackupPush: '애플리케이션 백업 파일 {{.file}}을(를) 노드 {{ .name }}(으)로 전송'
+ErrSourceTargetSame: '소스 노드와 대상 노드는 동일할 수 없습니다!'
+AppInstall: '노드 {{ .targetNode }}에 애플리케이션 {{ .name }} 설치'
+AppInstallCheck: '애플리케이션 설치 환경 확인'
 
 # backup
 ErrBackupInUsed: "이 백업 계정은 예약된 작업에 사용 중이며 삭제할 수 없습니다"
diff --git a/core/i18n/lang/pt-BR.yaml b/core/i18n/lang/pt-BR.yaml
index c40f3daee155..2b30d717f957 100644
--- a/core/i18n/lang/pt-BR.yaml
+++ b/core/i18n/lang/pt-BR.yaml
@@ -37,11 +37,11 @@ MasterNode: "Nó Mestre"
 # app
 CustomAppStoreFileValid: "O pacote da loja de aplicativos deve estar no formato .tar.gz"
 ErrFileNotFound: "Arquivo {{ .name }} não encontrado"
-AppBackup: 'Backup de aplicação',
-AppBackupPush: 'Transferir arquivo de backup de aplicação {{.file}} para o nó {{ .name }}',
-ErrSourceTargetSame: 'O nó de origem e o nó de destino não podem ser os mesmos!',
-AppInstall: 'Instalar aplicação {{ .name }} no nó {{ .targetNode }}',
-AppInstallCheck: 'Verificar ambiente de instalação da aplicação',
+AppBackup: 'Backup de aplicação'
+AppBackupPush: 'Transferir arquivo de backup de aplicação {{.file}} para o nó {{ .name }}'
+ErrSourceTargetSame: 'O nó de origem e o nó de destino não podem ser os mesmos!'
+AppInstall: 'Instalar aplicação {{ .name }} no nó {{ .targetNode }}'
+AppInstallCheck: 'Verificar ambiente de instalação da aplicação'
 
 # backup
 ErrBackupInUsed: "Esta conta de backup está em uso em tarefas agendadas e não pode ser excluída"
diff --git a/core/i18n/lang/ru.yaml b/core/i18n/lang/ru.yaml
index 084aec387c55..d2e80b8ed5cf 100644
--- a/core/i18n/lang/ru.yaml
+++ b/core/i18n/lang/ru.yaml
@@ -37,11 +37,11 @@ MasterNode: "Главный узел"
 # app
 CustomAppStoreFileValid: "Пакет магазина приложений должен быть в формате .tar.gz"
 ErrFileNotFound: "Файл {{ .name }} не найден"
-AppBackup: 'Резервная копия приложения',
-AppBackupPush: 'Передать файл резервной копии приложения {{.file}} на узел {{ .name }}',
-ErrSourceTargetSame: 'Исходный узел и целевой узел не могут быть одинаковыми!',
-AppInstall: 'Установить приложение {{ .name }} на узел {{ .targetNode }}',
-AppInstallCheck: 'Проверить среду установки приложения',
+AppBackup: 'Резервная копия приложения'
+AppBackupPush: 'Передать файл резервной копии приложения {{.file}} на узел {{ .name }}'
+ErrSourceTargetSame: 'Исходный узел и целевой узел не могут быть одинаковыми!'
+AppInstall: 'Установить приложение {{ .name }} на узел {{ .targetNode }}'
+AppInstallCheck: 'Проверить среду установки приложения'
 
 # backup
 ErrBackupInUsed: "Эта учетная запись резервного копирования используется в запланированных задачах и не может быть удалена"
diff --git a/core/i18n/lang/tr.yaml b/core/i18n/lang/tr.yaml
index 7b220cc7af21..0390bb2e53a3 100644
--- a/core/i18n/lang/tr.yaml
+++ b/core/i18n/lang/tr.yaml
@@ -37,11 +37,11 @@ MasterNode: "Ana Düğüm"
 # app
 CustomAppStoreFileValid: "Uygulama mağazası paketi .tar.gz formatında olmalıdır"
 ErrFileNotFound: "{{ .name }} dosyası mevcut değil"
-AppBackup: 'Uygulama yedekleme',
-AppBackupPush: 'Uygulama yedek dosyası {{.file}} düğüm {{ .name }} a aktar',
-ErrSourceTargetSame: 'Kaynak düğüm ve hedef düğüm aynı olamaz!',
-AppInstall: 'Düğüm {{ .targetNode }} üzerine {{ .name }} uygulamasını yükle',
-AppInstallCheck: 'Uygulama kurulum ortamını kontrol et',
+AppBackup: 'Uygulama yedekleme'
+AppBackupPush: 'Uygulama yedek dosyası {{.file}} düğüm {{ .name }} a aktar'
+ErrSourceTargetSame: 'Kaynak düğüm ve hedef düğüm aynı olamaz!'
+AppInstall: 'Düğüm {{ .targetNode }} üzerine {{ .name }} uygulamasını yükle'
+AppInstallCheck: 'Uygulama kurulum ortamını kontrol et'
 
 # backup
 ErrBackupInUsed: "Bu yedekleme hesabı zamanlanmış görevlerde kullanılıyor ve silinemez"
diff --git a/core/i18n/lang/zh-Hant.yaml b/core/i18n/lang/zh-Hant.yaml
index 18834f5454d5..818b6e4eda7f 100644
--- a/core/i18n/lang/zh-Hant.yaml
+++ b/core/i18n/lang/zh-Hant.yaml
@@ -37,11 +37,11 @@ MasterNode: "主節點"
 #app
 CustomAppStoreFileValid: "應用商店包需要 .tar.gz 格式"
 ErrFileNotFound: "{{ .name }} 檔案不存在"
-AppBackup: '應用備份',
-AppBackupPush: '傳輸應用備份文件 {{.file}} 到節點 {{ .name }}',
-ErrSourceTargetSame: '源節點和目標節點不能相同！',
-AppInstall: '在 {{ .targetNode }} 節點安裝應用 {{ .name }}',
-AppInstallCheck: '檢查應用安裝環境',
+AppBackup: '應用備份'
+AppBackupPush: '傳輸應用備份文件 {{.file}} 到節點 {{ .name }}'
+ErrSourceTargetSame: '源節點和目標節點不能相同！'
+AppInstall: '在 {{ .targetNode }} 節點安裝應用 {{ .name }}'
+AppInstallCheck: '檢查應用安裝環境'
 
 #backup
 ErrBackupInUsed: "該備份帳號已在排程任務中使用，無法刪除"

From cc350fcb61d2ea3c62530d849c4634aeab907da6 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 12:59:34 +0800
Subject: [PATCH 6/9] fix: Update Malay language file extension from .yml to
 .yaml and add new translations in i18n module

---
 core/i18n/i18n.go                  | 2 +-
 core/i18n/lang/{ms.yml => ms.yaml} | 0
 2 files changed, 1 insertion(+), 1 deletion(-)
 rename core/i18n/lang/{ms.yml => ms.yaml} (100%)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 911e80e94af4..903dbd11884a 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -26,7 +26,7 @@ var langFiles = map[string]string{
 	"pt-BR":   "lang/pt-BR.yaml",
 	"ja":      "lang/ja.yaml",
 	"ru":      "lang/ru.yaml",
-	"ms":      "lang/ms.yml",
+	"ms":      "lang/ms.yaml",
 	"ko":      "lang/ko.yaml",
 	"tr":      "lang/tr.yaml",
 	"es-ES":   "lang/es-ES.yaml",
diff --git a/core/i18n/lang/ms.yml b/core/i18n/lang/ms.yaml
similarity index 100%
rename from core/i18n/lang/ms.yml
rename to core/i18n/lang/ms.yaml

From 29f94438c6e0480f13bd285ad423a841876ef500 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 13:00:42 +0800
Subject: [PATCH 7/9] fix: Improve error messages for language file loading in
 i18n module

---
 core/i18n/i18n.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 903dbd11884a..a9df839c2c2b 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -143,13 +143,13 @@ func Init() {
 		isSuccess := true
 		for _, file := range langFiles {
 			if _, err := bundle.LoadMessageFileFS(fs, file); err != nil {
-				fmt.Printf("failed to load language file %s: %v\n", file, err)
+				fmt.Printf("[i18n] load language file %s failed: %v\n", file, err)
 				isSuccess = false
 			}
 		}
 
 		if !isSuccess {
-			panic("failed to load language files, See log above for details")
+			panic("[i18n] failed to init language files, See log above for details")
 		}
 
 		dbLang := getLanguageFromDBInternal()

From 906d6bbea39899b438f96bc5206c5cabe74436c0 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 13:15:33 +0800
Subject: [PATCH 8/9] fix: Ensure cached database language is set correctly
 during i18n initialization

---
 core/i18n/i18n.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index a9df839c2c2b..5c66b0b258d3 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -153,10 +153,11 @@ func Init() {
 		}
 
 		dbLang := getLanguageFromDBInternal()
-		SetCachedDBLanguage(dbLang)
 		if dbLang == "" {
 			dbLang = defaultLang
 		}
+		SetCachedDBLanguage(dbLang)
+
 		global.I18n = i18n.NewLocalizer(bundle, dbLang)
 	})
 }

From 81c095d3c74c74b8326c17684c9cab4527d2e953 Mon Sep 17 00:00:00 2001
From: HynoR <20227709+HynoR@users.noreply.github.com>
Date: Fri, 21 Nov 2025 13:37:10 +0800
Subject: [PATCH 9/9] fix: Enhance language detection in i18n module by using
 Accept-Language header

---
 core/i18n/i18n.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/core/i18n/i18n.go b/core/i18n/i18n.go
index 5c66b0b258d3..c8a84ed1b610 100644
--- a/core/i18n/i18n.go
+++ b/core/i18n/i18n.go
@@ -131,7 +131,11 @@ var bundle *i18n.Bundle
 
 func UseI18n() gin.HandlerFunc {
 	return func(context *gin.Context) {
-		global.I18n = i18n.NewLocalizer(bundle, GetLanguage())
+		lang := context.GetHeader("Accept-Language")
+		if lang == "" {
+			lang = GetLanguage()
+		}
+		global.I18n = i18n.NewLocalizer(bundle, lang)
 	}
 }