feat: 连接相关提示信息国际化

- 右键连接: 成功/失败弹出 ElMessage 提示
- 测试连接: testSuccess/testFailed 替换硬编码
- 保存连接: created/updated/saveFailed 替换硬编码
- 导入/导出: exported/imported/importTitle 替换硬编码
- connection store: serverInfoUnavailable/connectFailed 国际化
- 新增 11 个 i18n key (5 语言): hostRequired, nameHostRequired,
  connectSuccess, connectFailed, created, updated, saveFailed,
  exported, importTitle, imported, serverInfoUnavailable

src/renderer/src/components/connection/ConnectionList.vue

@@ -31,9 +31,19 @@ function closeCtxMenu() {
   ctxMenu.value.visible = false
 }
 
-function ctxConnect() {
-  if (ctxMenu.value.conn) connStore.connect(ctxMenu.value.conn)
+async function ctxConnect() {
+  if (!ctxMenu.value.conn) return
   closeCtxMenu()
+  try {
+    await connStore.connect(ctxMenu.value.conn)
+    if (connStore.error) {
+      ElMessage.error(connStore.error || t('connection.connectFailed'))
+    } else {
+      ElMessage.success(t('connection.connectSuccess'))
+    }
+  } catch (err: any) {
+    ElMessage.error(err.message || t('connection.connectFailed'))
+  }
 }
 
 function ctxDisconnect() {
@@ -140,7 +150,7 @@ async function handleExport() {
     a.download = `jredis-connections-${new Date().toISOString().slice(0, 10)}.json`
     a.click()
     URL.revokeObjectURL(url)
-    ElMessage.success('Connections exported')
+    ElMessage.success(t('connection.exported'))
   } catch (err: any) {
     ElMessage.error(err.message)
   }
@@ -149,12 +159,12 @@ async function handleExport() {
 async function handleImport() {
   try {
     const result = await window.electronAPI.dialog.openFile({
-      title: 'Import Connections',
+      title: t('connection.importTitle'),
       filters: [{ name: 'JSON', extensions: ['json'] }],
     })
     if (result) {
       const count = await connStore.importConnections(result.content)
-      ElMessage.success(`Imported ${count} connection(s)`)
+      ElMessage.success(t('connection.imported', { n: count }))
       await connStore.loadConnections()
     }
   } catch (err: any) {

src/renderer/src/components/connection/NewConnectionDialog.vue

@@ -134,7 +134,7 @@ async function selectTlsKeyFile() {
 
 async function handleTest() {
   if (!form.host.trim()) {
-    ElMessage.warning('Host is required')
+    ElMessage.warning(t('connection.hostRequired'))
     return
   }
   testing.value = true
@@ -164,9 +164,9 @@ async function handleTest() {
       sshPassphrase: form.sshPassphrase,
     } as any)
     if (result.success) {
-      ElMessage.success('Connection successful')
+      ElMessage.success(t('connection.testSuccess'))
     } else {
-      ElMessage.error(result.error || 'Connection failed')
+      ElMessage.error(result.error || t('connection.testFailed'))
     }
   } finally {
     testing.value = false
@@ -175,7 +175,7 @@ async function handleTest() {
 
 async function handleSave() {
   if (!form.name.trim() || !form.host.trim()) {
-    ElMessage.warning('Name and host are required')
+    ElMessage.warning(t('connection.nameHostRequired'))
     return
   }
   saving.value = true
@@ -211,10 +211,10 @@ async function handleSave() {
       createdAt: props.connection?.createdAt ?? Date.now(),
     }
     await connStore.saveConnection(conn)
-    ElMessage.success(isEdit.value ? 'Connection updated' : 'Connection created')
+    ElMessage.success(isEdit.value ? t('connection.updated') : t('connection.created'))
     close()
   } catch (err: any) {
-    ElMessage.error(err.message || 'Failed to save connection')
+    ElMessage.error(err.message || t('connection.saveFailed'))
   } finally {
     saving.value = false
   }

src/renderer/src/i18n/locales/de.ts

@@ -74,6 +74,17 @@ export default {
     duplicate: 'Duplizieren',
     setColor: 'Farbe festlegen',
     duplicated: 'Verbindung dupliziert',
+    hostRequired: 'Host ist erforderlich',
+    nameHostRequired: 'Name und Host sind erforderlich',
+    connectSuccess: 'Verbunden',
+    connectFailed: 'Verbindung fehlgeschlagen',
+    created: 'Verbindung erstellt',
+    updated: 'Verbindung aktualisiert',
+    saveFailed: 'Verbindung konnte nicht gespeichert werden',
+    exported: 'Verbindungen exportiert',
+    importTitle: 'Verbindungen importieren',
+    imported: '{n} Verbindung(en) importiert',
+    serverInfoUnavailable: 'Verbindung hergestellt, aber Serverinformationen nicht verfügbar',
   },
   key: {
     title: 'Schlüssel',

src/renderer/src/i18n/locales/en.ts

@@ -74,6 +74,17 @@ export default {
     duplicate: 'Duplicate',
     setColor: 'Set Color',
     duplicated: 'Connection duplicated',
+    hostRequired: 'Host is required',
+    nameHostRequired: 'Name and host are required',
+    connectSuccess: 'Connected',
+    connectFailed: 'Connection failed',
+    created: 'Connection created',
+    updated: 'Connection updated',
+    saveFailed: 'Failed to save connection',
+    exported: 'Connections exported',
+    importTitle: 'Import Connections',
+    imported: 'Imported {n} connection(s)',
+    serverInfoUnavailable: 'Connection established but server info unavailable',
   },
   key: {
     title: 'Keys',

src/renderer/src/i18n/locales/ja.ts

@@ -74,6 +74,17 @@ export default {
     duplicate: '複製',
     setColor: '色を設定',
     duplicated: '接続が複製されました',
+    hostRequired: 'ホストは必須です',
+    nameHostRequired: '名前とホストは必須です',
+    connectSuccess: '接続しました',
+    connectFailed: '接続に失敗しました',
+    created: '接続が作成されました',
+    updated: '接続が更新されました',
+    saveFailed: '接続の保存に失敗しました',
+    exported: '接続がエクスポートされました',
+    importTitle: '接続をインポート',
+    imported: '{n} 個の接続をインポートしました',
+    serverInfoUnavailable: '接続は確立されましたが、サーバー情報が利用できません',
   },
   key: {
     title: 'キー',

src/renderer/src/i18n/locales/ko.ts

@@ -74,6 +74,17 @@ export default {
     duplicate: '복제',
     setColor: '색상 설정',
     duplicated: '연결이 복제되었습니다',
+    hostRequired: '호스트는 필수입니다',
+    nameHostRequired: '이름과 호스트는 필수입니다',
+    connectSuccess: '연결됨',
+    connectFailed: '연결 실패',
+    created: '연결이 생성되었습니다',
+    updated: '연결이 업데이트되었습니다',
+    saveFailed: '연결 저장 실패',
+    exported: '연결이 내보내기되었습니다',
+    importTitle: '연결 가져오기',
+    imported: '{n}개 연결을 가져왔습니다',
+    serverInfoUnavailable: '연결이 확립되었지만 서버 정보를 사용할 수 없습니다',
   },
   key: {
     title: '키',

src/renderer/src/i18n/locales/zh-CN.ts

@@ -74,6 +74,17 @@ export default {
     duplicate: '复制连接',
     setColor: '设置颜色',
     duplicated: '连接已复制',
+    hostRequired: '主机必填',
+    nameHostRequired: '名称和主机必填',
+    connectSuccess: '连接成功',
+    connectFailed: '连接失败',
+    created: '连接已创建',
+    updated: '连接已更新',
+    saveFailed: '保存连接失败',
+    exported: '连接已导出',
+    importTitle: '导入连接',
+    imported: '已导入 {n} 个连接',
+    serverInfoUnavailable: '连接已建立但服务器信息不可用',
   },
   key: {
     title: '键值',

src/renderer/src/stores/connection.ts

@@ -1,5 +1,6 @@
 import { defineStore } from 'pinia'
 import { ref, computed } from 'vue'
+import { useI18n } from '@renderer/i18n'
 
 export interface ConnectionConfig {
   id: string
@@ -34,6 +35,7 @@ export interface ConnectionConfig {
 }
 
 export const useConnectionStore = defineStore('connection', () => {
+  const { t } = useI18n()
   const connections = ref<ConnectionConfig[]>([])
   const activeId = ref<string | null>(null)
   const connectedIds = ref<string[]>([])
@@ -138,7 +140,7 @@ export const useConnectionStore = defineStore('connection', () => {
           // leaving the renderer in a state where isConnected is true but no
           // actual Redis client exists in the main process.
           await disconnectById(conn.id)
-          error.value = 'Connection established but server info unavailable'
+          error.value = t('connection.serverInfoUnavailable')
           return
         }
         // Restore last selected DB for this connection
@@ -151,7 +153,7 @@ export const useConnectionStore = defineStore('connection', () => {
         currentDb.value = lastDb
         startHealthCheck(conn.id)
       } else {
-        error.value = result.error || 'Connection failed'
+        error.value = result.error || t('connection.connectFailed')
       }
     } catch (err: any) {
       error.value = err.message