refactor(frontend): modularize i18n architecture

frontend/src/features/providers/components/EndpointFormDialog.vue

@@ -1002,7 +1002,7 @@
         variant="outline"
         @click="handleClose"
       >
-        关闭
+        {{ legacyT('关闭') }}
       </Button>
     </template>
   </Dialog>
@@ -1010,10 +1010,10 @@
   <!-- 删除端点确认弹窗 -->
   <AlertDialog
     :model-value="deleteConfirmOpen"
-    title="删除端点"
+    :title="legacyT('删除端点')"
     :description="deleteConfirmDescription"
-    confirm-text="删除"
-    cancel-text="取消"
+    :confirm-text="legacyT('删除')"
+    :cancel-text="legacyT('取消')"
     type="danger"
     @update:model-value="deleteConfirmOpen = $event"
     @confirm="confirmDeleteEndpoint"
@@ -1047,6 +1047,7 @@ import { Settings, Trash2, Check, X, Power, ChevronRight, Plus, Shuffle, RotateC
 import { useToast } from '@/composables/useToast'
 import { parseApiError } from '@/utils/errorParser'
 import { log } from '@/utils/logger'
+import { useI18n } from '@/i18n'
 import AlertDialog from '@/components/common/AlertDialog.vue'
 import EndpointConditionEditor from './EndpointConditionEditor.vue'
 import ProxyNodeSelect from './ProxyNodeSelect.vue'
@@ -1142,16 +1143,21 @@ const isEndpointFormatConversionDisabled = computed(() => {
 // 获取禁用提示
 const formatConversionDisabledTooltip = computed(() => {
   if (props.systemFormatConversionEnabled) {
-    return '请先关闭系统级开关'
+    return legacyT('请先关闭系统级开关')
   }
   if (props.providerFormatConversionEnabled) {
-    return '请先关闭提供商级开关'
+    return legacyT('请先关闭提供商级开关')
   }
   return ''
 })
 
 const { success, error: showError } = useToast()
 const proxyNodesStore = useProxyNodesStore()
+const { legacyT, locale } = useI18n()
+
+function localizedApiError(error: unknown, fallback: string): string {
+  return legacyT(parseApiError(error, fallback))
+}
 
 // 规则 Select 的展开状态（与 Collapsible 分开管理）
 const ruleSelectOpen = ref<Record<string, boolean>>({})
@@ -1488,58 +1494,70 @@ function isJsonObject(value: unknown): value is Record<string, unknown> {
   return value !== null && typeof value === 'object' && !Array.isArray(value)
 }
 
+function formatJsonRuleFieldLabel(label: string, index: number, field: string): string {
+  return locale.value === 'en-US'
+    ? `${label} entry ${index + 1}: ${field}`
+    : `${label}第 ${index + 1} 条：${field}`
+}
+
+function formatJsonRuleError(label: string, index: number, message: string): string {
+  return locale.value === 'en-US'
+    ? `${label} entry ${index + 1}: ${legacyT(message)}`
+    : `${label}第 ${index + 1} 条：${legacyT(message)}`
+}
+
 function readJsonRulesArray(root: Record<string, unknown>, key: keyof EndpointRulesJsonPayload, label: string): { value: unknown[]; error: string | null } {
   const raw = root[key]
   if (raw === undefined || raw === null) return { value: [], error: null }
-  if (!Array.isArray(raw)) return { value: [], error: `${label} 必须是数组或 null` }
+  if (!Array.isArray(raw)) return { value: [], error: `${label} ${legacyT('必须是数组或 null')}` }
   return { value: raw, error: null }
 }
 
 function validateJsonCondition(rule: Record<string, unknown>, label: string, index: number): string | null {
   const raw = rule.condition
   if (raw === undefined || raw === null) return null
-  if (!isJsonObject(raw)) return `${label}第 ${index + 1} 条：condition 必须是对象`
-  const shapeError = validateJsonConditionShape(raw, `${label}第 ${index + 1} 条：condition`)
+  if (!isJsonObject(raw)) return formatJsonRuleError(label, index, 'condition 必须是对象')
+  const shapeError = validateJsonConditionShape(raw, formatJsonRuleFieldLabel(label, index, 'condition'))
   if (shapeError) return shapeError
   const editable = conditionToEditable(raw as BodyRule['condition'])
   const err = validateEditableCondition(editable)
-  return err ? `${label}第 ${index + 1} 条：${err}` : null
+  return err ? formatJsonRuleError(label, index, err) : null
 }
 
 function validateJsonConditionShape(condition: Record<string, unknown>, label: string): string | null {
   if (Object.prototype.hasOwnProperty.call(condition, 'all')) {
-    if (!Array.isArray(condition.all)) return `${label}.all 必须是数组`
+    if (!Array.isArray(condition.all)) return `${label}.all ${legacyT('必须是数组')}`
     for (let i = 0; i < condition.all.length; i++) {
       const child = condition.all[i]
-      if (!isJsonObject(child)) return `${label}.all[${i}] 必须是对象`
+      if (!isJsonObject(child)) return `${label}.all[${i}] ${legacyT('必须是对象')}`
       const err = validateJsonConditionShape(child, `${label}.all[${i}]`)
       if (err) return err
     }
     return null
   }
   if (Object.prototype.hasOwnProperty.call(condition, 'any')) {
-    if (!Array.isArray(condition.any)) return `${label}.any 必须是数组`
+    if (!Array.isArray(condition.any)) return `${label}.any ${legacyT('必须是数组')}`
     for (let i = 0; i < condition.any.length; i++) {
       const child = condition.any[i]
-      if (!isJsonObject(child)) return `${label}.any[${i}] 必须是对象`
+      if (!isJsonObject(child)) return `${label}.any[${i}] ${legacyT('必须是对象')}`
       const err = validateJsonConditionShape(child, `${label}.any[${i}]`)
       if (err) return err
     }
     return null
   }
 
-  if (typeof condition.path !== 'string') return `${label}.path 必须是字符串`
+  if (typeof condition.path !== 'string') return `${label}.path ${legacyT('必须是字符串')}`
   if (typeof condition.op !== 'string' || !CONDITION_JSON_OPS.has(condition.op)) {
-    return `${label}.op 无效`
+    return `${label}.op ${legacyT('无效')}`
   }
   if (condition.source !== undefined && (typeof condition.source !== 'string' || !CONDITION_JSON_SOURCES.has(condition.source))) {
-    return `${label}.source 无效`
+    return `${label}.source ${legacyT('无效')}`
   }
   return null
 }
 
 function requireJsonString(rule: Record<string, unknown>, key: string, label: string, index: number): string | null {
-  return typeof rule[key] === 'string' ? null : `${label}第 ${index + 1} 条：${key} 必须是字符串`
+  return typeof rule[key] === 'string' ? null : formatJsonRuleError(label, index, `${key} ${legacyT('必须是字符串')}`)
 }
 
 function normalizeHeaderRuleName(raw: string): string {
@@ -1548,12 +1566,12 @@ function normalizeHeaderRuleName(raw: string): string {
 
 function reservedHeaderRuleError(raw: string): string | null {
   const name = normalizeHeaderRuleName(raw)
-  return name && RESERVED_HEADERS.has(name) ? `"${raw}" 是系统保留的请求头` : null
+  return name && RESERVED_HEADERS.has(name) ? `"${raw}" ${legacyT('是系统保留的请求头')}` : null
 }
 
 function reservedResponseHeaderRuleError(raw: string): string | null {
   const name = normalizeHeaderRuleName(raw)
-  return name && RESERVED_RESPONSE_HEADERS.has(name) ? `"${raw}" 是系统保留的响应头` : null
+  return name && RESERVED_RESPONSE_HEADERS.has(name) ? `"${raw}" ${legacyT('是系统保留的响应头')}` : null
 }
 
 function bodyRuleTopLevelField(rawPath: string): string | null {
@@ -1567,7 +1585,7 @@ function bodyRuleTopLevelField(rawPath: string): string | null {
 function reservedBodyRuleFieldError(rawPath: string): string | null {
   const topField = bodyRuleTopLevelField(rawPath)
   return topField && RESERVED_BODY_FIELDS.has(topField)
-    ? `"${topField}" 是系统保留的顶层字段`
+    ? `"${topField}" ${legacyT('是系统保留的顶层字段')}`
     : null
 }
 
@@ -1577,13 +1595,13 @@ function validateHeaderRuleJson(
   index: number,
   reservedNameError: (raw: string) => string | null = reservedHeaderRuleError
 ): string | null {
-  if (!isJsonObject(rule)) return `${label}第 ${index + 1} 条必须是对象`
+  if (!isJsonObject(rule)) return formatJsonRuleError(label, index, '必须是对象')
   if (rule.enabled !== undefined && typeof rule.enabled !== 'boolean') {
-    return `${label}第 ${index + 1} 条：enabled 必须是布尔值`
+    return formatJsonRuleError(label, index, 'enabled 必须是布尔值')
   }
   const action = rule.action
   if (action !== 'set' && action !== 'drop' && action !== 'rename') {
-    return `${label}第 ${index + 1} 条：action 必须是 set/drop/rename`
+    return formatJsonRuleError(label, index, 'action 必须是 set/drop/rename')
   }
   if (action === 'set') {
     return requireJsonString(rule, 'key', label, index)
@@ -1604,19 +1622,19 @@ function validateHeaderRuleJson(
 }
 
 function validateBodyRuleJson(rule: unknown, label: string, index: number): string | null {
-  if (!isJsonObject(rule)) return `${label}第 ${index + 1} 条必须是对象`
+  if (!isJsonObject(rule)) return formatJsonRuleError(label, index, '必须是对象')
   if (rule.enabled !== undefined && typeof rule.enabled !== 'boolean') {
-    return `${label}第 ${index + 1} 条：enabled 必须是布尔值`
+    return formatJsonRuleError(label, index, 'enabled 必须是布尔值')
   }
   const action = typeof rule.action === 'string' ? rule.action : ''
   if (!BODY_RULE_JSON_ACTIONS.has(action)) {
-    return `${label}第 ${index + 1} 条：action 无效`
+    return formatJsonRuleError(label, index, 'action 无效')
   }
 
   if (action === 'set' || action === 'append') {
     return requireJsonString(rule, 'path', label, index)
       || reservedBodyRuleFieldError(rule.path as string)
-      || (Object.prototype.hasOwnProperty.call(rule, 'value') ? null : `${label}第 ${index + 1} 条：value 不能为空`)
+      || (Object.prototype.hasOwnProperty.call(rule, 'value') ? null : formatJsonRuleError(label, index, 'value 不能为空'))
       || validateJsonCondition(rule, label, index)
   }
   if (action === 'drop') {
@@ -1634,20 +1652,20 @@ function validateBodyRuleJson(rule: unknown, label: string, index: number): stri
   if (action === 'insert') {
     if (requireJsonString(rule, 'path', label, index)) return requireJsonString(rule, 'path', label, index)
     if (reservedBodyRuleFieldError(rule.path as string)) return reservedBodyRuleFieldError(rule.path as string)
-    if (!Number.isInteger(rule.index)) return `${label}第 ${index + 1} 条：index 必须是整数`
-    if (!Object.prototype.hasOwnProperty.call(rule, 'value')) return `${label}第 ${index + 1} 条：value 不能为空`
+    if (!Number.isInteger(rule.index)) return formatJsonRuleError(label, index, 'index 必须是整数')
+    if (!Object.prototype.hasOwnProperty.call(rule, 'value')) return formatJsonRuleError(label, index, 'value 不能为空')
     return validateJsonCondition(rule, label, index)
   }
   if (action === 'regex_replace') {
     if (requireJsonString(rule, 'path', label, index)) return requireJsonString(rule, 'path', label, index)
     if (reservedBodyRuleFieldError(rule.path as string)) return reservedBodyRuleFieldError(rule.path as string)
     if (requireJsonString(rule, 'pattern', label, index)) return requireJsonString(rule, 'pattern', label, index)
-    if (typeof rule.replacement !== 'string') return `${label}第 ${index + 1} 条：replacement 必须是字符串`
-    if (rule.flags !== undefined && typeof rule.flags !== 'string') return `${label}第 ${index + 1} 条：flags 必须是字符串`
-    if (rule.count !== undefined && !Number.isInteger(rule.count)) return `${label}第 ${index + 1} 条：count 必须是整数`
+    if (typeof rule.replacement !== 'string') return formatJsonRuleError(label, index, 'replacement 必须是字符串')
+    if (rule.flags !== undefined && typeof rule.flags !== 'string') return formatJsonRuleError(label, index, 'flags 必须是字符串')
+    if (rule.count !== undefined && !Number.isInteger(rule.count)) return formatJsonRuleError(label, index, 'count 必须是整数')
     return validateJsonCondition(rule, label, index)
   }
-  return `${label}第 ${index + 1} 条：action 无效`
+  return formatJsonRuleError(label, index, 'action 无效')
 }
 
 function parseEndpointRulesJsonDraft(draft: string): { value: EndpointRulesJsonPayload | null; error: string | null } {
@@ -1660,9 +1678,9 @@ function parseEndpointRulesJsonDraft(draft: string): { value: EndpointRulesJsonP
   try {
     parsed = JSON.parse(raw)
   } catch (error: unknown) {
-    return { value: null, error: error instanceof Error ? error.message : 'JSON 格式无效' }
+    return { value: null, error: error instanceof Error ? error.message : legacyT('JSON 格式无效') }
   }
-  if (!isJsonObject(parsed)) return { value: null, error: '规则 JSON 必须是对象' }
+  if (!isJsonObject(parsed)) return { value: null, error: legacyT('规则 JSON 必须是对象') }
 
   const header = readJsonRulesArray(parsed, 'header_rules', 'header_rules')
   if (header.error) return { value: null, error: header.error }
@@ -1707,14 +1725,14 @@ function applyEndpointRulesJsonDraft(
   const parsed = parseEndpointRulesJsonDraft(endpointRulesJsonDraft.value[endpointId] ?? '')
   if (!parsed.value) {
     endpointRulesJsonError.value[endpointId] = parsed.error
-    if (notifyError) showError(parsed.error || '规则 JSON 无效')
+    if (notifyError) showError(legacyT(parsed.error || '规则 JSON 无效'))
     return false
   }
 
   const state = ensureEndpointEditState(endpointId)
   if (!state) {
-    endpointRulesJsonError.value[endpointId] = '端点编辑状态不可用'
-    if (notifyError) showError('端点编辑状态不可用')
+    endpointRulesJsonError.value[endpointId] = legacyT('端点编辑状态不可用')
+    if (notifyError) showError(legacyT('端点编辑状态不可用'))
     return false
   }
 
@@ -1734,14 +1752,14 @@ function applyEndpointRulesJsonDraft(
     || getBodyValidationErrorForEndpoint(endpointId)
   if (validationError) {
     endpointRulesJsonError.value[endpointId] = validationError
-    if (notifyError) showError(validationError)
+    if (notifyError) showError(legacyT(validationError))
     return false
   }
 
   endpointRulesJsonDraft.value[endpointId] = stringifyEndpointRulesJsonPayload(parsed.value)
   endpointRulesJsonError.value[endpointId] = null
   endpointRulesJsonDirty.value[endpointId] = false
-  if (options.notify !== false) success('JSON 规则已应用')
+  if (options.notify !== false) success(legacyT('JSON 规则已应用'))
   return true
 }
 
@@ -1878,7 +1896,9 @@ const availableFormats = computed(() => {
 const deleteConfirmDescription = computed(() => {
   if (!endpointToDelete.value) return ''
   const formatLabel = formatApiFormat(endpointToDelete.value.api_format)
-  return `确定要删除 ${formatLabel} 端点吗？关联密钥将移除对该 API 格式的支持。`
+  return locale.value === 'en-US'
+    ? `Delete the ${formatLabel} endpoint? Linked keys will no longer support this API format.`
+    : `确定要删除 ${formatLabel} 端点吗？关联密钥将移除对该 API 格式的支持。`
 })
 
 function defaultBodyRulesCacheKey(apiFormat: string): string {
@@ -1985,14 +2005,14 @@ function endpointProxyNodeId(endpoint: ProviderEndpoint): string {
 
 function getEndpointProxyNodeName(endpoint: ProviderEndpoint): string {
   const nodeId = endpointProxyNodeId(endpoint)
-  if (!nodeId) return '未知节点'
+  if (!nodeId) return legacyT('未知节点')
   const node = proxyNodesStore.nodes.find(n => n.id === nodeId)
   return node ? node.name : `${nodeId.slice(0, 8)}...`
 }
 
 function getEndpointProxyTitle(endpoint: ProviderEndpoint): string {
   const nodeId = endpointProxyNodeId(endpoint)
-  return nodeId ? `端点代理: ${getEndpointProxyNodeName(endpoint)}` : '设置端点代理节点'
+  return nodeId ? `${legacyT('端点代理')}: ${getEndpointProxyNodeName(endpoint)}` : legacyT('设置端点代理节点')
 }
 
 function handleEndpointProxyPopoverToggle(endpointId: string, open: boolean) {
@@ -2019,10 +2039,10 @@ async function setEndpointProxy(endpoint: ProviderEndpoint, nodeId: string) {
     })
     replaceLocalEndpoint(updated)
     endpointProxyPopoverOpen.value[endpoint.id] = false
-    success('端点代理已更新')
+    success(legacyT('端点代理已更新'))
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '更新代理失败'), '错误')
+    showError(localizedApiError(error, '更新代理失败'), legacyT('错误'))
   } finally {
     savingEndpointId.value = null
   }
@@ -2034,10 +2054,10 @@ async function clearEndpointProxy(endpoint: ProviderEndpoint) {
     const updated = await updateEndpoint(endpoint.id, { proxy: null })
     replaceLocalEndpoint(updated)
     endpointProxyPopoverOpen.value[endpoint.id] = false
-    success('端点代理已清除')
+    success(legacyT('端点代理已清除'))
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '清除代理失败'), '错误')
+    showError(localizedApiError(error, '清除代理失败'), legacyT('错误'))
   } finally {
     savingEndpointId.value = null
   }
@@ -2399,7 +2419,7 @@ function validateRuleKeyForEndpoint(endpointId: string, key: string, index: numb
     )
   )
   if (duplicate >= 0) {
-    return '请求头名称重复'
+    return legacyT('请求头名称重复')
   }
 
   return null
@@ -2423,7 +2443,7 @@ function validateRenameFromForEndpoint(endpointId: string, from: string, index:
        (r.action === 'rename' && r.from.trim().toLowerCase() === trimmedFrom))
   )
   if (duplicate >= 0) {
-    return '该请求头已被其他规则处理'
+    return legacyT('该请求头已被其他规则处理')
   }
 
   return null
@@ -2446,7 +2466,7 @@ function validateRenameToForEndpoint(endpointId: string, to: string, index: numb
        (r.action === 'rename' && r.to.trim().toLowerCase() === trimmedTo))
   )
   if (duplicate >= 0) {
-    return '请求头名称重复'
+    return legacyT('请求头名称重复')
   }
 
   return null
@@ -2575,7 +2595,7 @@ function validateBodyRulePathForEndpoint(endpointId: string, path: string, index
   const dotPart = raw.includes('[') ? raw.slice(0, raw.indexOf('[')) : raw
   const parts = dotPart ? parseBodyRulePathParts(dotPart) : [raw.split('[')[0] || raw]
   if (!parts) {
-    return '路径格式无效'
+    return legacyT('路径格式无效')
   }
 
   const reservedErr = reservedBodyRuleFieldError(raw)
@@ -2594,7 +2614,7 @@ function validateBodyRulePathForEndpoint(endpointId: string, path: string, index
     )
   )
   if (duplicate >= 0) {
-    return '字段路径重复'
+    return legacyT('字段路径重复')
   }
 
   return null
@@ -2607,7 +2627,7 @@ function validateBodyRenameFromForEndpoint(endpointId: string, from: string, ind
 
   const parts = parseBodyRulePathParts(raw)
   if (!parts) {
-    return '路径格式无效（不允许 .a / a. / a..b）'
+    return legacyT('路径格式无效（不允许 .a / a. / a..b）')
   }
 
   const reservedErr = reservedBodyRuleFieldError(raw)
@@ -2625,7 +2645,7 @@ function validateBodyRenameFromForEndpoint(endpointId: string, from: string, ind
        (r.action === 'rename' && r.from.trim().toLowerCase() === normalizedFrom))
   )
   if (duplicate >= 0) {
-    return '该路径已被其他规则处理'
+    return legacyT('该路径已被其他规则处理')
   }
 
   return null
@@ -2638,7 +2658,7 @@ function validateBodyRenameToForEndpoint(endpointId: string, to: string, index:
 
   const parts = parseBodyRulePathParts(raw)
   if (!parts) {
-    return '路径格式无效（不允许 .a / a. / a..b）'
+    return legacyT('路径格式无效（不允许 .a / a. / a..b）')
   }
 
   const reservedErr = reservedBodyRuleFieldError(raw)
@@ -2655,7 +2675,7 @@ function validateBodyRenameToForEndpoint(endpointId: string, to: string, index:
        (r.action === 'rename' && r.to.trim().toLowerCase() === normalizedTo))
   )
   if (duplicate >= 0) {
-    return '字段路径重复'
+    return legacyT('字段路径重复')
   }
 
   return null
@@ -2665,12 +2685,12 @@ function validateBodySetValue(rule: EditableBodyRule): string | null {
   if (rule.action !== 'set' && rule.action !== 'append' && rule.action !== 'insert') return null
 
   const raw = rule.value.trim()
-  if (!raw) return '值不能为空'
+  if (!raw) return legacyT('值不能为空')
   try {
     JSON.parse(prepareValueForJsonParse(raw))
   } catch (err: unknown) {
     const msg = err instanceof Error ? err.message : String(err)
-    return `JSON 格式错误：${msg}`
+    return locale.value === 'en-US' ? `JSON format error: ${msg}` : `JSON 格式错误：${msg}`
   }
   return null
 }
@@ -2712,12 +2732,12 @@ function getRegexPatternValidation(rule: EditableBodyRule): boolean | null {
 // 获取正则验证提示
 function getRegexPatternValidationTip(rule: EditableBodyRule): string {
   const validation = getRegexPatternValidation(rule)
-  if (validation === null) return '输入正则表达式'
-  if (validation === true) return '有效的正则表达式'
+  if (validation === null) return legacyT('输入正则表达式')
+  if (validation === true) return legacyT('有效的正则表达式')
   try {
     new RegExp(rule.pattern.trim())
     // 正则有效但 flags 无效
-    return '无效的 flags（仅允许 i/m/s）'
+    return legacyT('无效的 flags（仅允许 i/m/s）')
   } catch (err: unknown) {
     return err instanceof Error ? err.message : String(err)
   }
@@ -2726,11 +2746,21 @@ function getRegexPatternValidationTip(rule: EditableBodyRule): string {
 // 获取验证提示
 function getBodySetValueValidationTip(rule: EditableBodyRule): string {
   const validation = getBodySetValueValidation(rule)
-  if (validation === null) return '点击验证 JSON'
+  if (validation === null) return legacyT('点击验证 JSON')
   if (validation === true) {
     const parsed = restoreOriginalPlaceholder(JSON.parse(prepareValueForJsonParse(rule.value.trim())))
-    const type = Array.isArray(parsed) ? '数组' : typeof parsed === 'object' && parsed !== null ? '对象' : typeof parsed === 'string' ? '字符串' : typeof parsed === 'number' ? '数字' : typeof parsed === 'boolean' ? '布尔' : 'null'
-    return `有效的 JSON (${type})`
+    const type = Array.isArray(parsed)
+      ? legacyT('数组')
+      : typeof parsed === 'object' && parsed !== null
+        ? legacyT('对象')
+        : typeof parsed === 'string'
+          ? legacyT('字符串')
+          : typeof parsed === 'number'
+            ? legacyT('数字')
+            : typeof parsed === 'boolean'
+              ? legacyT('布尔')
+              : 'null'
+    return `${legacyT('有效的 JSON')} (${type})`
   }
   try {
     JSON.parse(prepareValueForJsonParse(rule.value.trim()))
@@ -2793,43 +2823,43 @@ function getTotalRulesCount(endpoint: ProviderEndpoint): number {
 // 格式化请求头规则的显示标签
 function _formatHeaderRuleLabel(rule: EditableRule): string {
   if (rule.action === 'set') {
-    if (!rule.key) return '(未设置)'
+    if (!rule.key) return legacyT('(未设置)')
     return `${rule.key}=${rule.value || '...'}`
   } else if (rule.action === 'drop') {
-    if (!rule.key) return '(未设置)'
+    if (!rule.key) return legacyT('(未设置)')
     return `-${rule.key}`
   } else if (rule.action === 'rename') {
-    if (!rule.from || !rule.to) return '(未设置)'
+    if (!rule.from || !rule.to) return legacyT('(未设置)')
     return `${rule.from}→${rule.to}`
   }
-  return '(未知)'
+  return legacyT('(未知)')
 }
 
 // 格式化请求体规则的显示标签
 function _formatBodyRuleLabel(rule: EditableBodyRule): string {
   if (rule.action === 'set') {
-    if (!rule.path) return '(未设置)'
+    if (!rule.path) return legacyT('(未设置)')
     return `${rule.path}=${rule.value || '...'}`
   } else if (rule.action === 'drop') {
-    if (!rule.path) return '(未设置)'
+    if (!rule.path) return legacyT('(未设置)')
     return `-${rule.path}`
   } else if (rule.action === 'rename') {
-    if (!rule.from || !rule.to) return '(未设置)'
+    if (!rule.from || !rule.to) return legacyT('(未设置)')
     return `${rule.from}→${rule.to}`
   } else if (rule.action === 'append') {
-    if (!rule.path) return '(未设置)'
+    if (!rule.path) return legacyT('(未设置)')
     return `${rule.path}[]+=${rule.value || '...'}`
   } else if (rule.action === 'insert') {
-    if (!rule.path) return '(未设置)'
-    const idx = rule.index?.trim() || '末尾'
+    if (!rule.path) return legacyT('(未设置)')
+    const idx = rule.index?.trim() || legacyT('末尾')
     return `${rule.path}[${idx}]+=${rule.value || '...'}`
   } else if (rule.action === 'regex_replace') {
-    if (!rule.path || !rule.pattern) return '(未设置)'
+    if (!rule.path || !rule.pattern) return legacyT('(未设置)')
     const flags = rule.flags.trim()
     const count = rule.count.trim()
     return `${rule.path}: s/${rule.pattern}/${rule.replacement || ''}/${flags}${count ? ` ×${count}` : ''}`
   }
-  return '(未知)'
+  return legacyT('(未知)')
 }
 
 // 检查端点请求体规则是否有修改
@@ -2921,7 +2951,7 @@ function getBodyValidationErrorForEndpoint(endpointId: string): string | null {
   for (let i = 0; i < rules.length; i++) {
     const rule = rules[i]
     if (!rule.enabled) continue
-    const prefix = `第 ${i + 1} 条请求体规则：`
+    const prefix = locale.value === 'en-US' ? `Body rule ${i + 1}: ` : `第 ${i + 1} 条请求体规则：`
 
     if (rule.action === 'set' || rule.action === 'drop') {
       const pathErr = validateBodyRulePathForEndpoint(endpointId, rule.path, i)
@@ -2944,29 +2974,32 @@ function getBodyValidationErrorForEndpoint(endpointId: string): string | null {
       const pathErr = validateBodyRulePathForEndpoint(endpointId, rule.path, i)
       if (pathErr) return `${prefix}${pathErr}`
       const indexStr = rule.index.trim()
-      if (!indexStr) return `${prefix}插入位置不能为空`
-      if (!isStrictIntegerString(indexStr)) return `${prefix}位置必须为整数`
+      if (!indexStr) return `${prefix}${legacyT('插入位置不能为空')}`
+      if (!isStrictIntegerString(indexStr)) return `${prefix}${legacyT('位置必须为整数')}`
       const valueErr = validateBodySetValue(rule)
       if (valueErr) return `${prefix}${valueErr}`
     } else if (rule.action === 'regex_replace') {
       const pathErr = validateBodyRulePathForEndpoint(endpointId, rule.path, i)
       if (pathErr) return `${prefix}${pathErr}`
-      if (!rule.pattern.trim()) return `${prefix}正则表达式不能为空`
+      if (!rule.pattern.trim()) return `${prefix}${legacyT('正则表达式不能为空')}`
       try {
         new RegExp(rule.pattern.trim())
       } catch (err: unknown) {
-        return `${prefix}正则表达式无效：${err instanceof Error ? err.message : String(err)}`
+        const message = err instanceof Error ? err.message : String(err)
+        return locale.value === 'en-US'
+          ? `${prefix}Invalid regular expression: ${message}`
+          : `${prefix}正则表达式无效：${message}`
       }
       const flags = rule.flags.trim()
       if (flags) {
         const validFlags = new Set(['i', 'm', 's'])
         for (const f of flags) {
-          if (!validFlags.has(f)) return `${prefix}flags 仅允许 i/m/s，非法字符: ${f}`
+          if (!validFlags.has(f)) return `${prefix}${legacyT('flags 仅允许 i/m/s，非法字符')}: ${f}`
         }
       }
       const count = rule.count.trim()
       if (count) {
-        if (!isStrictNonNegativeIntegerString(count)) return `${prefix}替换次数必须是大于等于 0 的整数`
+        if (!isStrictNonNegativeIntegerString(count)) return `${prefix}${legacyT('替换次数必须是大于等于 0 的整数')}`
       }
     }
 
@@ -3058,7 +3091,7 @@ async function handleResetBodyRulesToDefault(endpoint: ProviderEndpoint) {
   try {
     const defaultRules = await loadDefaultBodyRulesForFormat(endpoint.api_format, true)
     if (!defaultRules.length) {
-      showError('该端点没有默认请求体规则')
+      showError(legacyT('该端点没有默认请求体规则'))
       return
     }
 
@@ -3079,9 +3112,9 @@ async function handleResetBodyRulesToDefault(endpoint: ProviderEndpoint) {
     if (isEndpointRulesJsonMode(endpoint.id)) {
       refreshEndpointRulesJsonDraft(endpoint.id)
     }
-    success('已重置请求体为默认规则，请点击保存生效')
+    success(legacyT('已重置请求体为默认规则，请点击保存生效'))
   } catch (error: unknown) {
-    showError(parseApiError(error, '重置失败'), '错误')
+    showError(localizedApiError(error, '重置失败'), legacyT('错误'))
   } finally {
     resettingDefaultRulesEndpointId.value = null
   }
@@ -3121,7 +3154,7 @@ function getHeaderValidationErrorForEndpoint(endpointId: string): string | null
   for (let i = 0; i < rules.length; i++) {
     const rule = rules[i]
     if (!rule.enabled) continue
-    const prefix = `第 ${i + 1} 条请求头规则：`
+    const prefix = locale.value === 'en-US' ? `Header rule ${i + 1}: ` : `第 ${i + 1} 条请求头规则：`
     if (rule.action === 'set' || rule.action === 'drop') {
       const err = validateRuleKeyForEndpoint(endpointId, rule.key, i)
       if (err) return `${prefix}${err}`
@@ -3156,7 +3189,7 @@ function validateResponseHeaderNameForEndpoint(endpointId: string, name: string,
     )
   )
   if (duplicate >= 0) {
-    return field === 'from' ? '该响应头已被其他规则处理' : '响应头名称重复'
+    return legacyT(field === 'from' ? '该响应头已被其他规则处理' : '响应头名称重复')
   }
 
   return null
@@ -3167,7 +3200,7 @@ function getResponseHeaderValidationErrorForEndpoint(endpointId: string): string
   for (let i = 0; i < rules.length; i++) {
     const rule = rules[i]
     if (!rule.enabled) continue
-    const prefix = `第 ${i + 1} 条响应头规则：`
+    const prefix = locale.value === 'en-US' ? `Response header rule ${i + 1}: ` : `第 ${i + 1} 条响应头规则：`
     if (rule.action === 'set' || rule.action === 'drop') {
       const err = validateResponseHeaderNameForEndpoint(endpointId, rule.key, i, 'key')
       if (err) return `${prefix}${err}`
@@ -3274,20 +3307,20 @@ async function saveEndpoint(endpoint: ProviderEndpoint) {
   // 检查规则是否有验证错误
   const headerErr = getHeaderValidationErrorForEndpoint(endpoint.id)
   if (headerErr) {
-    showError(headerErr)
+    showError(legacyT(headerErr))
     return
   }
 
   const responseHeaderErr = getResponseHeaderValidationErrorForEndpoint(endpoint.id)
   if (responseHeaderErr) {
-    showError(responseHeaderErr)
+    showError(legacyT(responseHeaderErr))
     return
   }
 
   // 检查请求体规则是否有验证错误
   const bodyErr = getBodyValidationErrorForEndpoint(endpoint.id)
   if (bodyErr) {
-    showError(bodyErr)
+    showError(legacyT(bodyErr))
     return
   }
 
@@ -3315,10 +3348,10 @@ async function saveEndpoint(endpoint: ProviderEndpoint) {
     if (Object.keys(payload).length === 0) return
 
     await updateEndpoint(endpoint.id, payload)
-    success('端点已更新')
+    success(legacyT('端点已更新'))
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '更新失败'), '错误')
+    showError(localizedApiError(error, '更新失败'), legacyT('错误'))
   } finally {
     savingEndpointId.value = null
   }
@@ -3334,10 +3367,10 @@ async function handleToggleFormatConversion(endpoint: ProviderEndpoint) {
     await updateEndpoint(endpoint.id, {
       format_acceptance_config: newEnabled ? { enabled: true } : null,
     })
-    success(newEnabled ? '已启用格式转换' : '已关闭格式转换')
+    success(legacyT(newEnabled ? '已启用格式转换' : '已关闭格式转换'))
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '操作失败'), '错误')
+    showError(localizedApiError(error, '操作失败'), legacyT('错误'))
   } finally {
     togglingFormatEndpointId.value = null
   }
@@ -3369,11 +3402,11 @@ function getUpstreamStreamButtonClass(endpoint: ProviderEndpoint): string {
 
 // 获取上游流式按钮的提示文字
 function getUpstreamStreamTooltip(endpoint: ProviderEndpoint): string {
-  if (isUpstreamStreamPolicyLocked(endpoint)) return '固定流式（Codex OpenAI Responses，已锁定）'
+  if (isUpstreamStreamPolicyLocked(endpoint)) return legacyT('固定流式（Codex OpenAI Responses，已锁定）')
   const policy = getCurrentUpstreamStreamPolicy(endpoint)
-  if (policy === 'force_stream') return '固定流式（点击切换为固定非流）'
-  if (policy === 'force_non_stream') return '固定非流（点击切换为跟随请求）'
-  return '跟随请求（点击切换为固定流式）'
+  if (policy === 'force_stream') return legacyT('固定流式（点击切换为固定非流）')
+  if (policy === 'force_non_stream') return legacyT('固定非流（点击切换为跟随请求）')
+  return legacyT('跟随请求（点击切换为固定流式）')
 }
 
 // 循环切换上游流式策略并直接保存
@@ -3387,13 +3420,13 @@ async function handleCycleUpstreamStream(endpoint: ProviderEndpoint) {
   // 循环：auto -> force_stream -> force_non_stream -> auto
   if (currentPolicy === 'auto') {
     nextPolicy = 'force_stream'
-    nextLabel = '固定流式'
+    nextLabel = legacyT('固定流式')
   } else if (currentPolicy === 'force_stream') {
     nextPolicy = 'force_non_stream'
-    nextLabel = '固定非流'
+    nextLabel = legacyT('固定非流')
   } else {
     nextPolicy = 'auto'
-    nextLabel = '跟随请求'
+    nextLabel = legacyT('跟随请求')
   }
 
   savingEndpointId.value = endpoint.id
@@ -3417,10 +3450,10 @@ async function handleCycleUpstreamStream(endpoint: ProviderEndpoint) {
       endpointEditStates.value[endpoint.id].upstreamStreamPolicy = nextPolicy
     }
 
-    success(`已切换为${nextLabel}`)
+    success(locale.value === 'en-US' ? `Switched to ${nextLabel}` : `已切换为${nextLabel}`)
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '操作失败'), '错误')
+    showError(localizedApiError(error, '操作失败'), legacyT('错误'))
   } finally {
     savingEndpointId.value = null
   }
@@ -3433,7 +3466,7 @@ async function handleAddEndpoint() {
   // 如果没有输入 base_url，使用按格式规范化后的提供商 website 作为默认值。
   const baseUrl = getNewEndpointBaseUrl()
   if (!baseUrl) {
-    showError('请输入 Base URL')
+    showError(legacyT('请输入 Base URL'))
     return
   }
 
@@ -3446,12 +3479,14 @@ async function handleAddEndpoint() {
       custom_path: newEndpoint.value.custom_path || undefined,
       is_active: true,
     })
-    success(`已添加 ${formatApiFormat(newEndpoint.value.api_format)} 端点`)
+    success(locale.value === 'en-US'
+      ? `Added ${formatApiFormat(newEndpoint.value.api_format)} endpoint`
+      : `已添加 ${formatApiFormat(newEndpoint.value.api_format)} 端点`)
     // 重置表单，保留 URL
     newEndpoint.value = { api_format: '', base_url: baseUrl, custom_path: '' }
     emit('endpointCreated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '添加失败'), '错误')
+    showError(localizedApiError(error, '添加失败'), legacyT('错误'))
   } finally {
     addingEndpoint.value = false
   }
@@ -3463,10 +3498,10 @@ async function handleToggleEndpoint(endpoint: ProviderEndpoint) {
   try {
     const newStatus = !endpoint.is_active
     await updateEndpoint(endpoint.id, { is_active: newStatus })
-    success(newStatus ? '端点已启用' : '端点已停用')
+    success(legacyT(newStatus ? '端点已启用' : '端点已停用'))
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '操作失败'), '错误')
+    showError(localizedApiError(error, '操作失败'), legacyT('错误'))
   } finally {
     togglingEndpointId.value = null
   }
@@ -3488,10 +3523,12 @@ async function confirmDeleteEndpoint() {
 
   try {
     await deleteEndpoint(endpoint.id)
-    success(`已删除 ${formatApiFormat(endpoint.api_format)} 端点`)
+    success(locale.value === 'en-US'
+      ? `Deleted ${formatApiFormat(endpoint.api_format)} endpoint`
+      : `已删除 ${formatApiFormat(endpoint.api_format)} 端点`)
     emit('endpointUpdated')
   } catch (error: unknown) {
-    showError(parseApiError(error, '删除失败'), '错误')
+    showError(localizedApiError(error, '删除失败'), legacyT('错误'))
   } finally {
     deletingEndpointId.value = null
     endpointToDelete.value = null

frontend/src/features/providers/components/KeyFormDialog.vue

@@ -1,8 +1,8 @@
 <template>
   <Dialog
     :model-value="isOpen"
-    :title="isEditMode ? '编辑密钥' : '添加密钥'"
-    :description="isEditMode ? '修改 API 密钥配置' : '为提供商添加新的 API 密钥'"
+    :title="legacyT(isEditMode ? '编辑密钥' : '添加密钥')"
+    :description="legacyT(isEditMode ? '修改 API 密钥配置' : '为提供商添加新的 API 密钥')"
     :icon="isEditMode ? SquarePen : Key"
     size="xl"
     @update:model-value="handleDialogUpdate"
@@ -15,13 +15,13 @@
       <!-- 基本信息 -->
       <div class="grid grid-cols-2 gap-3">
         <div>
-          <Label :for="keyNameInputId">密钥名称 *</Label>
+          <Label :for="keyNameInputId">{{ legacyT('密钥名称 *') }}</Label>
           <Input
             :id="keyNameInputId"
             v-model="form.name"
             :name="keyNameFieldName"
             required
-            placeholder="例如：主 Key、备用 Key 1"
+            :placeholder="legacyT('例如：主 Key、备用 Key 1')"
             maxlength="100"
             autocomplete="off"
             autocapitalize="none"
@@ -33,10 +33,10 @@
           />
         </div>
         <div v-if="showAuthTypeSelector">
-          <Label :for="authTypeSelectId">认证类型</Label>
+          <Label :for="authTypeSelectId">{{ legacyT('认证类型') }}</Label>
           <Select v-model="form.auth_type">
             <SelectTrigger :id="authTypeSelectId">
-              <SelectValue placeholder="选择认证类型" />
+              <SelectValue :placeholder="legacyT('选择认证类型')" />
             </SelectTrigger>
             <SelectContent>
               <SelectItem
@@ -61,9 +61,9 @@
               :reset-key="formNonce"
               accept=".json,.txt,application/json,text/plain"
               :multiple="false"
-              drop-title="拖入 Service Account JSON 或点击选择"
-              drop-hint="支持 .json / .txt，单文件导入"
-              :manual-placeholder="editingKey ? '留空表示不修改，或粘贴完整的 Service Account JSON' : '粘贴完整的 Service Account JSON'"
+              :drop-title="legacyT('拖入 Service Account JSON 或点击选择')"
+              :drop-hint="legacyT('支持 .json / .txt，单文件导入')"
+              :manual-placeholder="legacyT(editingKey ? '留空表示不修改，或粘贴完整的 Service Account JSON' : '粘贴完整的 Service Account JSON')"
               :manual-description="serviceAccountDescription"
               textarea-class="min-h-[160px] font-mono text-xs break-all !rounded-xl"
               @error="handleServiceAccountImportError"
@@ -83,25 +83,25 @@
             v-if="editingKey && isRawSecretAuthType(form.auth_type)"
             class="text-xs text-muted-foreground mt-1"
           >
-            留空表示不修改
+            {{ legacyT('留空表示不修改') }}
           </p>
         </div>
       </div>
 
       <!-- 备注 -->
       <div>
-        <Label for="note">备注</Label>
+        <Label for="note">{{ legacyT('备注') }}</Label>
         <Input
           id="note"
           v-model="form.note"
-          placeholder="可选的备注信息"
+          :placeholder="legacyT('可选的备注信息')"
         />
       </div>
 
       <!-- API 格式 & 认证方式 -->
       <div v-if="visibleApiFormats.length > 0">
         <div class="flex items-center gap-1 mb-1.5">
-          <Label>支持的 API 格式 *</Label>
+          <Label>{{ legacyT('支持的 API 格式 *') }}</Label>
           <span
             class="relative inline-flex"
             @mouseenter="apiFormatHelpHovered = true"
@@ -110,8 +110,8 @@
             <button
               type="button"
               class="inline-flex items-center justify-center rounded-sm p-0.5 text-muted-foreground transition-colors hover:bg-muted/60 hover:text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
-              title="API 格式说明"
-              aria-label="API 格式说明"
+              :title="legacyT('API 格式说明')"
+              :aria-label="legacyT('API 格式说明')"
               :aria-expanded="apiFormatHelpVisible"
               @click.stop="toggleApiFormatHelp"
               @focus="apiFormatHelpHovered = true"
@@ -125,7 +125,7 @@
               role="tooltip"
               class="absolute left-0 top-full z-[100] mt-1 w-80 rounded-md border bg-popover px-3 py-2 text-xs font-normal normal-case leading-5 tracking-normal text-popover-foreground shadow-md"
             >
-              选择此密钥支持的 API 格式及对应认证方式。OpenAI 格式固定使用 Bearer Token；Claude / Gemini 格式可选 API Key 或 Bearer Token（如 Claude Code 应使用 Bearer Token）。
+              {{ legacyT('选择此密钥支持的 API 格式及对应认证方式。OpenAI 格式固定使用 Bearer Token；Claude / Gemini 格式可选 API Key 或 Bearer Token（如 Claude Code 应使用 Bearer Token）。') }}
             </span>
           </span>
         </div>
@@ -183,7 +183,7 @@
               <div
                 v-if="canToggleAuthChannelMismatch(format)"
                 class="flex items-center gap-1"
-                title="允许客户端认证方式不一致时使用"
+                :title="legacyT('允许客户端认证方式不一致时使用')"
                 @click.stop
               >
                 <Switch
@@ -203,7 +203,7 @@
           <Label
             for="internal_priority"
             class="text-xs"
-          >优先级</Label>
+          >{{ legacyT('优先级') }}</Label>
           <Input
             id="internal_priority"
             v-model.number="form.internal_priority"
@@ -212,51 +212,51 @@
             class="h-8"
           />
           <p class="text-xs text-muted-foreground mt-0.5">
-            越小越优先
+            {{ legacyT('越小越优先') }}
           </p>
         </div>
         <div>
           <Label
             for="rpm_limit"
             class="text-xs"
-          >RPM 限制</Label>
+          >{{ legacyT('RPM 限制') }}</Label>
           <Input
             id="rpm_limit"
             :model-value="form.rpm_limit ?? ''"
             type="number"
             min="1"
             max="10000"
-            placeholder="自适应"
+            :placeholder="legacyT('自适应')"
             class="h-8"
             @update:model-value="(v) => form.rpm_limit = parseNullableNumberInput(v, { min: 1, max: 10000 })"
           />
           <p class="text-xs text-muted-foreground mt-0.5">
-            留空自适应
+            {{ legacyT('留空自适应') }}
           </p>
         </div>
         <div>
           <Label
             for="concurrent_limit"
             class="text-xs"
-          >并发请求上限</Label>
+          >{{ legacyT('并发请求上限') }}</Label>
           <Input
             id="concurrent_limit"
             :model-value="form.concurrent_limit ?? ''"
             type="number"
             min="0"
-            placeholder="不限制"
+            :placeholder="legacyT('不限制')"
             class="h-8"
             @update:model-value="(v) => form.concurrent_limit = parseNullableNumberInput(v, { min: 0 })"
           />
           <p class="text-xs text-muted-foreground mt-0.5">
-            留空或 0 表示不限制
+            {{ legacyT('留空或 0 表示不限制') }}
           </p>
         </div>
         <div>
           <Label
             for="cache_ttl_minutes"
             class="text-xs"
-          >缓存 TTL</Label>
+          >{{ legacyT('缓存 TTL') }}</Label>
           <Input
             id="cache_ttl_minutes"
             :model-value="form.cache_ttl_minutes ?? ''"
@@ -267,14 +267,14 @@
             @update:model-value="(v) => form.cache_ttl_minutes = parseNumberInput(v, { min: 0, max: 60 }) ?? 5"
           />
           <p class="text-xs text-muted-foreground mt-0.5">
-            分钟，0禁用
+            {{ legacyT('分钟，0禁用') }}
           </p>
         </div>
         <div>
           <Label
             for="max_probe_interval_minutes"
             class="text-xs"
-          >熔断探测</Label>
+          >{{ legacyT('熔断探测') }}</Label>
           <Input
             id="max_probe_interval_minutes"
             :model-value="form.max_probe_interval_minutes ?? ''"
@@ -286,7 +286,7 @@
             @update:model-value="(v) => form.max_probe_interval_minutes = parseNumberInput(v, { min: 0, max: 32 }) ?? 32"
           />
           <p class="text-xs text-muted-foreground mt-0.5">
-            分钟，0-32
+            {{ legacyT('分钟，0-32') }}
           </p>
         </div>
       </div>
@@ -295,9 +295,9 @@
       <div class="space-y-3 py-2 px-3 rounded-md border border-border/60 bg-muted/30">
         <div class="flex items-center justify-between">
           <div class="space-y-0.5">
-            <Label class="text-sm font-medium">自动获取上游可用模型</Label>
+            <Label class="text-sm font-medium">{{ legacyT('自动获取上游可用模型') }}</Label>
             <p class="text-xs text-muted-foreground">
-              定时更新上游模型, 配合模型映射使用
+              {{ legacyT('定时更新上游模型, 配合模型映射使用') }}
             </p>
             <p
               v-if="showAutoFetchWarning"
@@ -316,15 +316,15 @@
         >
           <div class="grid grid-cols-2 gap-3">
             <div>
-              <Label class="text-xs">包含规则</Label>
+              <Label class="text-xs">{{ legacyT('包含规则') }}</Label>
               <Input
                 v-model="form.model_include_patterns_text"
-                placeholder="gpt-*, claude-*, 留空包含全部"
+                :placeholder="legacyT('gpt-*, claude-*, 留空包含全部')"
                 class="h-8 text-sm"
               />
             </div>
             <div>
-              <Label class="text-xs">排除规则</Label>
+              <Label class="text-xs">{{ legacyT('排除规则') }}</Label>
               <Input
                 v-model="form.model_exclude_patterns_text"
                 placeholder="*-preview, *-beta"
@@ -333,7 +333,7 @@
             </div>
           </div>
           <p class="text-xs text-muted-foreground">
-            逗号分隔，支持 * ? 通配符，不区分大小写
+            {{ legacyT('逗号分隔，支持 * ? 通配符，不区分大小写') }}
           </p>
         </div>
       </div>
@@ -344,13 +344,13 @@
         variant="outline"
         @click="handleCancel"
       >
-        取消
+        {{ legacyT('取消') }}
       </Button>
       <Button
         :disabled="saving || !canSave"
         @click="handleSave"
       >
-        {{ saving ? (isEditMode ? '保存中...' : '添加中...') : (isEditMode ? '保存' : '添加') }}
+        {{ submitLabel }}
       </Button>
     </template>
   </Dialog>
@@ -373,6 +373,7 @@ import {
 import { Key, SquarePen, CircleHelp } from 'lucide-vue-next'
 import { useToast } from '@/composables/useToast'
 import { useFormDialog } from '@/composables/useFormDialog'
+import { useI18n } from '@/i18n'
 import { parseApiError } from '@/utils/errorParser'
 import { parseNumberInput, parseNullableNumberInput } from '@/utils/form'
 import JsonImportInput from '@/components/common/JsonImportInput.vue'
@@ -410,6 +411,7 @@ const emit = defineEmits<{
 }>()
 
 const { success, error: showError } = useToast()
+const { legacyT, locale } = useI18n()
 
 function isRawSecretAuthType(authType: string | null | undefined): authType is RawSecretAuthType {
   return authType === 'api_key' || authType === 'bearer'
@@ -549,7 +551,7 @@ function toggleApiFormatHelp() {
 const authSecretLabel = computed(() => {
   if (form.value.auth_type === 'service_account') return 'Service Account JSON'
   if (form.value.auth_type === 'bearer') return 'Bearer Token'
-  return 'API 密钥'
+  return legacyT('API 密钥')
 })
 
 const authSecretPlaceholder = computed(() =>
@@ -618,11 +620,18 @@ function buildAllowAuthChannelMismatchFormatsPayload(): string[] {
 }
 
 const serviceAccountDescription = computed(() => (
-  props.editingKey
+  legacyT(props.editingKey
     ? '留空表示不修改；JSON 格式，包含 project_id、private_key 等字段'
-    : 'JSON 格式，包含 project_id、private_key 等字段'
+    : 'JSON 格式，包含 project_id、private_key 等字段')
 ))
 
+const submitLabel = computed(() => {
+  if (saving.value) {
+    return legacyT(isEditMode.value ? '保存中...' : '添加中...')
+  }
+  return legacyT(isEditMode.value ? '保存' : '添加')
+})
+
 // 默认认证类型
 function getDefaultAuthType(): ProviderKeyFormAuthType {
   return authTypeOptions.value[0]?.value || 'api_key'
@@ -653,7 +662,10 @@ const autoFetchWarningMessage = computed(() => {
     ? props.editingKey.allowed_models
     : []
   if (models.length === 0) return ''
-  return `当前 Key 模型权限存在以下模型：${models.map(model => `“${model}”`).join('、')}，开启自动获取后将被覆盖`
+  const formattedModels = models.map(model => locale.value === 'en-US' ? `"${model}"` : `“${model}”`).join(locale.value === 'en-US' ? ', ' : '、')
+  return locale.value === 'en-US'
+    ? `Current key model permissions include these models: ${formattedModels}. Enabling auto fetch will overwrite them.`
+    : `当前 Key 模型权限存在以下模型：${formattedModels}，开启自动获取后将被覆盖`
 })
 
 // 检查是否正在切换认证类型
@@ -896,32 +908,32 @@ function parseAuthConfig(): Record<string, unknown> | null {
 }
 
 function handleServiceAccountImportError(payload: { message: string, title?: string }) {
-  showError(payload.message, payload.title || '错误')
+  showError(payload.message, payload.title ? legacyT(payload.title) : legacyT('错误'))
 }
 
 async function handleSave() {
   // 必须有 providerId
   if (!props.providerId) {
-    showError('无法保存：缺少提供商信息', '错误')
+    showError(legacyT('无法保存：缺少提供商信息'), legacyT('错误'))
     return
   }
 
   // 验证认证信息
   if (form.value.auth_type === 'service_account') {
     if (!props.editingKey && !form.value.auth_config_text.trim()) {
-      showError('请输入 Service Account JSON', '验证失败')
+      showError(legacyT('请输入 Service Account JSON'), legacyT('验证失败'))
       return
     }
     // 验证 JSON 格式
     if (form.value.auth_config_text.trim()) {
       const parsed = parseAuthConfig()
       if (!parsed) {
-        showError('Service Account JSON 格式无效', '验证失败')
+        showError(legacyT('Service Account JSON 格式无效'), legacyT('验证失败'))
         return
       }
       // 验证必要字段
       if (!parsed.client_email || !parsed.private_key || !parsed.project_id) {
-        showError('Service Account JSON 缺少必要字段 (client_email, private_key, project_id)', '验证失败')
+        showError(legacyT('Service Account JSON 缺少必要字段 (client_email, private_key, project_id)'), legacyT('验证失败'))
         return
       }
     }
@@ -934,7 +946,7 @@ async function handleSave() {
 
   // 验证至少选择一个 API 格式
   if (form.value.api_formats.length === 0) {
-    showError('请至少选择一个 API 格式', '验证失败')
+    showError(legacyT('请至少选择一个 API 格式'), legacyT('验证失败'))
     return
   }
 
@@ -990,7 +1002,7 @@ async function handleSave() {
       }
 
       await updateProviderKey(props.editingKey.id, updateData)
-      success('密钥已更新', '成功')
+      success(legacyT('密钥已更新'), legacyT('成功'))
     } else {
       // 新增模式
       await addProviderKey(props.providerId, {
@@ -1013,7 +1025,7 @@ async function handleSave() {
         model_exclude_patterns: parsePatternText(form.value.model_exclude_patterns_text)
       })
 
-      success('密钥已添加', '成功')
+      success(legacyT('密钥已添加'), legacyT('成功'))
       // 添加模式：不关闭对话框，只清除名称和密钥以便继续添加
       emit('saved')
       clearForNextAdd()
@@ -1023,8 +1035,8 @@ async function handleSave() {
     emit('saved')
     emit('close')
   } catch (err: unknown) {
-    const errorMessage = parseApiError(err, '保存密钥失败')
-    showError(errorMessage, '错误')
+    const errorMessage = parseApiError(err, legacyT('保存密钥失败'))
+    showError(errorMessage, legacyT('错误'))
   } finally {
     saving.value = false
   }

frontend/src/features/providers/components/OAuthAccountDialog.vue

@@ -1,7 +1,7 @@
 <template>
   <Dialog
     :model-value="isOpen"
-    title="添加账号"
+    :title="legacyT('添加账号')"
     :icon="UserPlus"
     size="md"
     @update:model-value="handleDialogUpdate"
@@ -18,7 +18,7 @@
             :class="selectedProxyNodeId
               ? 'text-blue-500 bg-blue-500/10 hover:bg-blue-500/20'
               : 'text-muted-foreground hover:text-foreground hover:bg-muted'"
-            :title="selectedProxyNodeId ? `代理: ${getSelectedNodeLabel()}` : '设置代理节点'"
+            :title="selectedProxyNodeId ? `${legacyT('代理')}: ${getSelectedNodeLabel()}` : legacyT('设置代理节点')"
           >
             <Globe class="w-4 h-4" />
           </button>
@@ -31,18 +31,18 @@
           <div class="space-y-2">
             <div class="flex items-center justify-between">
               <div class="flex items-center gap-1.5">
-                <span class="text-xs font-medium">代理节点</span>
+                <span class="text-xs font-medium">{{ legacyT('代理节点') }}</span>
                 <span
                   v-if="!proxyNodesStore.loading && proxyNodesStore.onlineNodes.length === 0"
                   class="text-[10px] text-muted-foreground"
-                >· 前往「模块管理 · 代理节点」添加</span>
+                >· {{ legacyT('前往「模块管理 · 代理节点」添加') }}</span>
               </div>
               <button
                 v-if="selectedProxyNodeId"
                 class="text-[10px] text-muted-foreground hover:text-foreground transition-colors"
                 @click="selectedProxyNodeId = ''; proxyPopoverOpen = false"
               >
-                清除
+                {{ legacyT('清除') }}
               </button>
             </div>
             <ProxyNodeSelect
@@ -51,7 +51,7 @@
               @update:model-value="(v: string) => { selectedProxyNodeId = v; proxyPopoverOpen = false }"
             />
             <p class="text-[10px] text-muted-foreground">
-              {{ selectedProxyNodeId ? `${providerCredentialActionLabel}、刷新、额度查询均走此代理` : '未设置，依次回退到提供商代理 → 系统代理' }}
+              {{ selectedProxyNodeId ? proxyUsageDescription : legacyT('未设置，依次回退到提供商代理 → 系统代理') }}
             </p>
           </div>
         </PopoverContent>
@@ -73,7 +73,7 @@
           ]"
           @click="switchMode('oauth')"
         >
-          {{ isDeviceBrowserProvider ? (isWindsurfProvider ? '浏览器登录' : '设备授权') : '获取授权' }}
+          {{ authorizationModeLabel }}
         </button>
         <button
           class="flex-1 px-3 py-1.5 text-xs font-medium rounded-md transition-all"
@@ -110,7 +110,7 @@
                     : 'border-border text-muted-foreground hover:text-foreground hover:border-foreground/20'"
                   @click="selectWindsurfLoginOption(opt.key)"
                 >
-                  {{ opt.label }}
+                  {{ legacyT(opt.label) }}
                 </button>
               </div>
 
@@ -124,10 +124,10 @@
                   </div>
                   <div class="space-y-1">
                     <p class="text-sm font-medium text-destructive">
-                      {{ device.status === 'expired' ? '授权已过期' : '授权失败' }}
+                      {{ legacyT(device.status === 'expired' ? '授权已过期' : '授权失败') }}
                     </p>
                     <p class="text-xs text-muted-foreground">
-                      {{ device.error || '请重试' }}
+                      {{ legacyT(device.error || '请重试') }}
                     </p>
                   </div>
                   <Button
@@ -135,7 +135,7 @@
                     variant="outline"
                     @click="resetDevice"
                   >
-                    重新开始
+                    {{ legacyT('重新开始') }}
                   </Button>
                 </div>
               </div>
@@ -147,7 +147,7 @@
                 <div class="text-center">
                   <div class="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto mb-3" />
                   <p class="text-xs text-muted-foreground">
-                    正在准备登录...
+                    {{ legacyT('正在准备登录...') }}
                   </p>
                 </div>
               </div>
@@ -159,7 +159,7 @@
                 <div class="space-y-2">
                   <div class="flex items-center gap-2">
                     <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">1</span>
-                    <span class="text-xs font-medium">前往登录</span>
+                    <span class="text-xs font-medium">{{ legacyT('前往登录') }}</span>
                   </div>
                   <div class="flex gap-2 pl-6">
                     <Button
@@ -168,7 +168,7 @@
                       @click="openDeviceVerificationUrl"
                     >
                       <ExternalLink class="w-3 h-3 mr-1" />
-                      打开
+                      {{ legacyT('打开') }}
                     </Button>
                     <Button
                       size="sm"
@@ -177,7 +177,7 @@
                       @click="copyToClipboard(device.verification_uri_complete)"
                     >
                       <Copy class="w-3 h-3 mr-1" />
-                      复制
+                      {{ legacyT('复制') }}
                     </Button>
                     <Button
                       v-if="!device.session_id"
@@ -186,7 +186,7 @@
                       :disabled="device.starting"
                       @click="startDeviceAuth"
                     >
-                      开始
+                      {{ legacyT('开始') }}
                     </Button>
                   </div>
                 </div>
@@ -194,7 +194,7 @@
                 <div class="space-y-2">
                   <div class="flex items-center gap-2">
                     <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">2</span>
-                    <span class="text-xs font-medium">粘贴回调 URL 或 token</span>
+                    <span class="text-xs font-medium">{{ legacyT('粘贴回调 URL 或 token') }}</span>
                   </div>
                   <div class="pl-6">
                     <Textarea
@@ -210,7 +210,7 @@
                     class="pl-6 flex items-center gap-1.5 text-[11px] text-muted-foreground"
                   >
                     <div class="animate-spin rounded-full h-3 w-3 border-[1.5px] border-primary/30 border-t-primary" />
-                    <span>会话剩余 {{ deviceCountdownFormatted }}</span>
+                    <span>{{ sessionRemainingText }}</span>
                   </div>
                 </div>
               </div>
@@ -253,10 +253,10 @@
                     </div>
                     <div class="space-y-1">
                       <p class="text-sm font-medium text-destructive">
-                        {{ device.status === 'expired' ? '授权已过期' : '授权失败' }}
+                        {{ legacyT(device.status === 'expired' ? '授权已过期' : '授权失败') }}
                       </p>
                       <p class="text-xs text-muted-foreground">
-                        {{ device.error || '请重试' }}
+                        {{ legacyT(device.error || '请重试') }}
                       </p>
                     </div>
                     <Button
@@ -264,7 +264,7 @@
                       variant="outline"
                       @click="resetDevice"
                     >
-                      重新开始
+                      {{ legacyT('重新开始') }}
                     </Button>
                   </div>
                 </div>
@@ -277,7 +277,7 @@
                   <div class="text-center">
                     <div class="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto mb-3" />
                     <p class="text-xs text-muted-foreground">
-                      正在注册设备...
+                      {{ legacyT('正在注册设备...') }}
                     </p>
                   </div>
                 </div>
@@ -290,7 +290,7 @@
                   <div class="space-y-2 shrink-0">
                     <div class="flex items-center gap-2">
                       <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">1</span>
-                      <span class="text-xs font-medium">前往授权</span>
+                      <span class="text-xs font-medium">{{ legacyT('前往授权') }}</span>
                     </div>
                     <div class="flex gap-2 pl-6">
                       <Button
@@ -299,7 +299,7 @@
                         @click="openDeviceVerificationUrl"
                       >
                         <ExternalLink class="w-3 h-3 mr-1" />
-                        打开
+                        {{ legacyT('打开') }}
                       </Button>
                       <Button
                         size="sm"
@@ -308,7 +308,7 @@
                         @click="copyToClipboard(device.verification_uri_complete)"
                       >
                         <Copy class="w-3 h-3 mr-1" />
-                        复制
+                        {{ legacyT('复制') }}
                       </Button>
                     </div>
                   </div>
@@ -316,7 +316,7 @@
                   <div class="flex min-h-0 flex-1 flex-col gap-2">
                     <div class="flex items-center gap-2">
                       <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">2</span>
-                      <span class="text-xs font-medium">粘贴回调 URL</span>
+                      <span class="text-xs font-medium">{{ legacyT('粘贴回调 URL') }}</span>
                     </div>
                     <div class="min-h-0 flex-1 pl-6">
                       <Textarea
@@ -345,16 +345,16 @@
 
                     <div class="space-y-1">
                       <p class="text-sm font-medium">
-                        在浏览器中完成授权
+                        {{ legacyT('在浏览器中完成授权') }}
                       </p>
                       <p class="text-xs text-muted-foreground">
-                        授权完成后此页面将自动更新
+                        {{ legacyT('授权完成后此页面将自动更新') }}
                       </p>
                     </div>
 
                     <div class="flex items-center gap-1.5 text-xs text-muted-foreground">
                       <div class="animate-spin rounded-full h-3 w-3 border-[1.5px] border-primary/30 border-t-primary" />
-                      <span>剩余 {{ deviceCountdownFormatted }}</span>
+                      <span>{{ remainingText }}</span>
                     </div>
 
                     <div
@@ -364,7 +364,7 @@
                       <div class="flex items-center justify-between">
                         <div class="flex items-center gap-2">
                           <ShieldCheck class="w-3.5 h-3.5 text-primary" />
-                          <span class="text-[10px] text-muted-foreground">MFA 验证码</span>
+                          <span class="text-[10px] text-muted-foreground">{{ legacyT('MFA 验证码') }}</span>
                         </div>
                         <div class="flex items-center gap-1.5">
                           <span
@@ -372,7 +372,7 @@
                           >{{ totp.code.value }}</span>
                           <button
                             class="p-1 rounded hover:bg-muted transition-colors"
-                            title="复制验证码"
+                            :title="legacyT('复制验证码')"
                             @click="copyToClipboard(totp.code.value)"
                           >
                             <Copy class="w-3 h-3 text-muted-foreground" />
@@ -401,7 +401,7 @@
                         @click="openDeviceVerificationUrl"
                       >
                         <ExternalLink class="w-3.5 h-3.5 mr-1.5" />
-                        打开授权页面
+                        {{ legacyT('打开授权页面') }}
                       </Button>
                       <Button
                         size="sm"
@@ -423,14 +423,14 @@
                     v-if="isSocialDeviceAuth"
                     class="text-xs text-muted-foreground text-center"
                   >
-                    授权后复制浏览器地址栏的 localhost 回调 URL。
+                    {{ legacyT('授权后复制浏览器地址栏的 localhost 回调 URL。') }}
                   </p>
 
                   <p
                     v-else-if="device.auth_type === 'builder_id'"
                     class="text-xs text-muted-foreground text-center"
                   >
-                    使用个人 AWS Builder ID 进行设备授权，无需额外配置。
+                    {{ legacyT('使用个人 AWS Builder ID 进行设备授权，无需额外配置。') }}
                   </p>
 
                   <div
@@ -458,7 +458,7 @@
                         <ComboboxAnchor class="relative w-full">
                           <ComboboxInput
                             :display-value="() => device.region"
-                            placeholder="输入或选择 Region"
+                            :placeholder="legacyT('输入或选择 Region')"
                             class="w-full h-8 px-2 pr-7 text-xs rounded-md border border-border bg-background font-mono focus:outline-none focus:ring-1 focus:ring-ring focus:relative focus:z-10"
                             spellcheck="false"
                             @input="(e: Event) => regionSearch = (e.target as HTMLInputElement).value"
@@ -474,7 +474,7 @@
                         >
                           <ComboboxViewport>
                             <ComboboxEmpty class="px-2 py-1.5 text-xs text-muted-foreground">
-                              {{ awsRegionsLoaded ? '无匹配结果，回车使用自定义值' : '加载中...' }}
+                              {{ awsRegionsLoaded ? legacyT('无匹配结果，回车使用自定义值') : legacyT('加载中...') }}
                             </ComboboxEmpty>
                             <ComboboxItem
                               v-for="r in filteredRegions"
@@ -493,7 +493,7 @@
                       </ComboboxRoot>
                     </div>
                     <div class="space-y-1.5">
-                      <label class="text-xs font-medium text-muted-foreground">TOTP Secret (可选, 2FA认证)</label>
+                      <label class="text-xs font-medium text-muted-foreground">{{ legacyT('TOTP Secret (可选, 2FA认证)') }}</label>
                       <input
                         v-model="device.totp_secret"
                         type="text"
@@ -509,7 +509,7 @@
                     :disabled="device.starting || (device.auth_type === 'identity_center' && !device.start_url.trim())"
                     @click="startDeviceAuth"
                   >
-                    {{ device.starting ? '正在准备授权...' : '开始授权' }}
+                    {{ device.starting ? legacyT('正在准备授权...') : legacyT('开始授权') }}
                   </Button>
                 </div>
               </div>
@@ -525,7 +525,7 @@
               <div class="text-center">
                 <div class="animate-spin rounded-full h-6 w-6 border-b-2 border-primary mx-auto mb-3" />
                 <p class="text-xs text-muted-foreground">
-                  正在准备授权...
+                  {{ legacyT('正在准备授权...') }}
                 </p>
               </div>
             </div>
@@ -534,7 +534,7 @@
               <div class="space-y-2">
                 <div class="flex items-center gap-2">
                   <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">1</span>
-                  <span class="text-xs font-medium">前往授权</span>
+                  <span class="text-xs font-medium">{{ legacyT('前往授权') }}</span>
                 </div>
                 <div class="flex gap-2 pl-6">
                   <Button
@@ -543,7 +543,7 @@
                     @click="openAuthorizationUrl"
                   >
                     <ExternalLink class="w-3 h-3 mr-1" />
-                    打开
+                    {{ legacyT('打开') }}
                   </Button>
                   <Button
                     size="sm"
@@ -552,7 +552,7 @@
                     @click="copyToClipboard(oauth.authorization_url)"
                   >
                     <Copy class="w-3 h-3 mr-1" />
-                    复制
+                    {{ legacyT('复制') }}
                   </Button>
                 </div>
               </div>
@@ -560,7 +560,7 @@
               <div class="space-y-2">
                 <div class="flex items-center gap-2">
                   <span class="flex items-center justify-center w-4 h-4 rounded-full bg-primary/10 text-primary text-[10px] font-semibold shrink-0">2</span>
-                  <span class="text-xs font-medium">粘贴回调 URL</span>
+                  <span class="text-xs font-medium">{{ legacyT('粘贴回调 URL') }}</span>
                 </div>
                 <div class="pl-6">
                   <Textarea
@@ -597,9 +597,9 @@
                 : 'text-muted-foreground hover:text-foreground'"
               :disabled="importing"
               @click="setWindsurfImportMethod(method.key)"
-            >
-              {{ method.label }}
-            </button>
+                >
+                  {{ legacyT(method.label) }}
+                </button>
           </div>
 
           <div
@@ -607,7 +607,7 @@
             class="space-y-3"
           >
             <div class="space-y-1.5">
-              <label class="text-xs font-medium">邮箱</label>
+              <label class="text-xs font-medium">{{ legacyT('邮箱') }}</label>
               <input
                 v-model="windsurfEmail"
                 type="email"
@@ -619,24 +619,24 @@
               >
             </div>
             <div class="space-y-1.5">
-              <label class="text-xs font-medium">密码</label>
+              <label class="text-xs font-medium">{{ legacyT('密码') }}</label>
               <input
                 v-model="windsurfPassword"
                 type="password"
                 autocomplete="current-password"
                 :disabled="importing"
-                placeholder="Windsurf 密码"
+                :placeholder="legacyT('Windsurf 密码')"
                 class="w-full h-9 px-2.5 text-xs rounded-md border border-border bg-background focus:outline-none focus:ring-1 focus:ring-ring focus:relative focus:z-10"
               >
             </div>
             <div class="space-y-1.5">
-              <label class="text-xs font-medium text-muted-foreground">名称（可选）</label>
+              <label class="text-xs font-medium text-muted-foreground">{{ legacyT('名称（可选）') }}</label>
               <input
                 v-model="windsurfAccountName"
                 type="text"
                 autocomplete="off"
                 :disabled="importing"
-                placeholder="未填写时使用邮箱"
+                :placeholder="legacyT('未填写时使用邮箱')"
                 class="w-full h-9 px-2.5 text-xs rounded-md border border-border bg-background focus:outline-none focus:ring-1 focus:ring-ring focus:relative focus:z-10"
                 spellcheck="false"
               >
@@ -677,8 +677,8 @@
               />
             </div>
             <div class="flex items-center justify-between text-[11px] text-muted-foreground">
-              <span>进度 {{ importTask.processed }}/{{ importTask.total }}</span>
-              <span>成功 {{ importTask.success }} · 失败 {{ importTask.failed }}</span>
+              <span>{{ importProgressText(importTask) }}</span>
+              <span>{{ importResultSummaryText(importTask) }}</span>
             </div>
             <p
               v-if="importTaskMessageText"
@@ -691,14 +691,14 @@
               class="space-y-1"
             >
               <p class="text-[11px] text-destructive">
-                最近错误
+                {{ legacyT('最近错误') }}
               </p>
               <p
                 v-for="item in importTask.error_samples.slice(0, 3)"
                 :key="`${item.index}-${item.error || item.status}`"
                 class="text-[11px] text-destructive/90"
               >
-                #{{ item.index + 1 }} {{ item.error || '导入失败' }}
+                {{ importErrorSampleText(item) }}
               </p>
             </div>
           </div>
@@ -711,21 +711,21 @@
         variant="outline"
         @click="handleClose"
       >
-        取消
+        {{ legacyT('取消') }}
       </Button>
       <Button
         v-if="mode === 'oauth' && showAuthorizationMode && !isDeviceBrowserProvider"
         :disabled="!canCompleteOAuth"
         @click="handleCompleteOAuth"
       >
-        {{ oauth.completing ? '验证中...' : '验证' }}
+        {{ oauth.completing ? legacyT('验证中...') : legacyT('验证') }}
       </Button>
       <Button
         v-if="mode === 'oauth' && isManualDeviceCallbackMode"
         :disabled="!canCompleteDeviceAuth"
         @click="completeDeviceAuth"
       >
-        {{ device.completing ? '验证中...' : '验证' }}
+        {{ device.completing ? legacyT('验证中...') : legacyT('验证') }}
       </Button>
       <Button
         v-if="mode === 'import'"
@@ -756,6 +756,7 @@ import { useToast } from '@/composables/useToast'
 import { useClipboard } from '@/composables/useClipboard'
 import { useTotp } from '@/composables/useTotp'
 import { parseApiError } from '@/utils/errorParser'
+import { useI18n } from '@/i18n'
 import {
   startProviderLevelOAuth,
   completeProviderLevelOAuth,
@@ -788,6 +789,7 @@ const emit = defineEmits<{
 
 const { success, error: showError } = useToast()
 const { copyToClipboard } = useClipboard()
+const { legacyT, locale } = useI18n()
 const proxyNodesStore = useProxyNodesStore()
 const totp = useTotp()
 
@@ -834,6 +836,14 @@ function getSelectedNodeLabel(): string {
   return node ? node.name : `${selectedProxyNodeId.value.slice(0, 8)  }...`
 }
 
+function isEnglishLocale(): boolean {
+  return locale.value === 'en-US'
+}
+
+function localizedApiError(error: unknown, fallback: string): string {
+  return legacyT(parseApiError(error, fallback))
+}
+
 // 模式
 type DialogMode = 'oauth' | 'import'
 const mode = ref<DialogMode>((props.providerType || '').toLowerCase() === 'grok' ? 'import' : 'oauth')
@@ -959,9 +969,15 @@ const isManualDeviceCallbackPending = computed(() =>
   && device.value.status === 'pending'
 )
 
+const authorizationModeLabel = computed(() => {
+  if (isWindsurfProvider.value) return legacyT('浏览器登录')
+  if (isDeviceBrowserProvider.value) return legacyT('设备授权')
+  return legacyT('获取授权')
+})
+
 const deviceCallbackPlaceholder = computed(() =>
   isWindsurfProvider.value
-    ? `粘贴包含 token=...&state=... 的回调 URL；session token/apiKey 也可直接粘贴，普通 token 请用导入授权`
+    ? legacyT('粘贴包含 token=...&state=... 的回调 URL；session token/apiKey 也可直接粘贴，普通 token 请用导入授权')
     : `http://localhost:49153/oauth/callback?login_option=${device.value.auth_type}&code=...&state=...`
 )
 
@@ -972,6 +988,18 @@ const deviceCountdownFormatted = computed(() => {
   return `${min}:${String(sec).padStart(2, '0')}`
 })
 
+const sessionRemainingText = computed(() => (
+  isEnglishLocale()
+    ? `Session remaining ${deviceCountdownFormatted.value}`
+    : `会话剩余 ${deviceCountdownFormatted.value}`
+))
+
+const remainingText = computed(() => (
+  isEnglishLocale()
+    ? `${deviceCountdownFormatted.value} remaining`
+    : `剩余 ${deviceCountdownFormatted.value}`
+))
+
 const oauthBusy = computed(() =>
   oauth.value.starting || oauth.value.completing
 )
@@ -997,33 +1025,42 @@ const canImport = computed(() => {
   return importText.value.trim().length > 0 && !importing.value
 })
 
-const importModeLabel = computed(() => (isGrokProvider.value ? '导入账号' : '导入授权'))
-const importButtonLabel = computed(() => (isGrokProvider.value ? '导入账号' : '导入'))
+const importModeLabel = computed(() => legacyT(isGrokProvider.value ? '导入账号' : '导入授权'))
+const importButtonLabel = computed(() => legacyT(isGrokProvider.value ? '导入账号' : '导入'))
 const importDropTitle = computed(() => (
-  isGrokProvider.value ? '拖入 Grok 账号文件或点击选择' : '拖入授权文件或点击选择'
+  legacyT(isGrokProvider.value ? '拖入 Grok 账号文件或点击选择' : '拖入授权文件或点击选择')
 ))
 const importDropHint = computed(() => (
-  isGrokProvider.value ? '支持 .json / .txt，可多选、批量导入' : '支持 .json / .txt，可多选'
+  legacyT(isGrokProvider.value ? '支持 .json / .txt，可多选、批量导入' : '支持 .json / .txt，可多选')
 ))
 const importManualPlaceholder = computed(() => (
   isGrokProvider.value
-    ? '粘贴 Grok sso/session token，支持每行一个；或粘贴包含 token、sso_token、access_token、plan_type、pool_tier 的 JSON'
+    ? legacyT('粘贴 Grok sso/session token，支持每行一个；或粘贴包含 token、sso_token、access_token、plan_type、pool_tier 的 JSON')
     : isWindsurfProvider.value
-      ? '粘贴 show-auth-token Token、API key 或 JSON 内容'
-      : '粘贴 Refresh Token / Access Token 或 JSON 内容'
+      ? legacyT('粘贴 show-auth-token Token、API key 或 JSON 内容')
+      : legacyT('粘贴 Refresh Token / Access Token 或 JSON 内容')
 ))
 const importManualDescription = computed(() => (
   isGrokProvider.value
-    ? 'plan_type / pool_tier 会作为账号套餐与能力特征保存，不是路由池选择。'
+    ? legacyT('plan_type / pool_tier 会作为账号套餐与能力特征保存，不是路由池选择。')
     : ''
 ))
 const importPasteToggleText = computed(() => (
-  isGrokProvider.value ? '或手动粘贴 Grok Token' : '或手动粘贴 Token'
+  legacyT(isGrokProvider.value ? '或手动粘贴 Grok Token' : '或手动粘贴 Token')
 ))
 const importFileToggleText = computed(() => (
-  isGrokProvider.value ? '或选择 Grok Token 文件导入' : '或选择 JSON 文件导入'
+  legacyT(isGrokProvider.value ? '或选择 Grok Token 文件导入' : '或选择 JSON 文件导入')
 ))
-const providerCredentialActionLabel = computed(() => (isGrokProvider.value ? '导入' : '授权'))
+const proxyUsageDescription = computed(() => {
+  if (isEnglishLocale()) {
+    return isGrokProvider.value
+      ? 'Import, refresh, and quota queries use this proxy'
+      : 'Authorization, refresh, and quota queries use this proxy'
+  }
+  return isGrokProvider.value
+    ? '导入、刷新、额度查询均走此代理'
+    : '授权、刷新、额度查询均走此代理'
+})
 const isWindsurfEmailPasswordImport = computed(() =>
   isWindsurfProvider.value && windsurfImportMethod.value === 'email_password'
 )
@@ -1031,19 +1068,35 @@ const isWindsurfEmailPasswordImport = computed(() =>
 const importButtonText = computed(() => {
   if (importing.value) {
     return importTask.value && !isWindsurfEmailPasswordImport.value
-      ? `导入中 ${importTask.value.progress_percent}%`
-      : '导入中...'
+      ? (isEnglishLocale() ? `Importing ${importTask.value.progress_percent}%` : `导入中 ${importTask.value.progress_percent}%`)
+      : legacyT('导入中...')
   }
-  return isWindsurfEmailPasswordImport.value ? '登录并导入' : importButtonLabel.value
+  return isWindsurfEmailPasswordImport.value ? legacyT('登录并导入') : importButtonLabel.value
 })
 
 const importTaskMessageText = computed(() => {
   const message = importTask.value?.message?.trim()
   if (!message) return ''
   // 后端进度 message 已由“进度 x/y”展示，避免在导入中重复显示“处理中 x/y”。
-  return redundantImportTaskMessagePattern.test(message) ? '' : message
+  return redundantImportTaskMessagePattern.test(message) ? '' : legacyT(message)
 })
 
+function importProgressText(task: OAuthBatchImportTaskStatusResponse): string {
+  return isEnglishLocale()
+    ? `Progress ${task.processed}/${task.total}`
+    : `进度 ${task.processed}/${task.total}`
+}
+
+function importResultSummaryText(task: OAuthBatchImportTaskStatusResponse): string {
+  return isEnglishLocale()
+    ? `Success ${task.success} · Failed ${task.failed}`
+    : `成功 ${task.success} · 失败 ${task.failed}`
+}
+
+function importErrorSampleText(item: OAuthBatchImportTaskStatusResponse['error_samples'][number]): string {
+  return `#${item.index + 1} ${legacyT(item.error || '导入失败')}`
+}
+
 function stopImportPolling() {
   if (importPollTimer) {
     clearTimeout(importPollTimer)
@@ -1055,15 +1108,15 @@ function stopImportPolling() {
 function getImportTaskStatusText(status: OAuthBatchImportTaskStatus): string {
   switch (status) {
     case 'submitted':
-      return '任务已提交'
+      return legacyT('任务已提交')
     case 'processing':
-      return '正在导入'
+      return legacyT('正在导入')
     case 'completed':
-      return '导入完成'
+      return legacyT('导入完成')
     case 'failed':
-      return '导入失败'
+      return legacyT('导入失败')
     default:
-      return '处理中'
+      return legacyT('处理中')
   }
 }
 
@@ -1073,6 +1126,19 @@ function getOAuthSuccessMessage(
 ): string {
   const email = typeof options?.email === 'string' ? options.email.trim() : ''
   const replaced = options?.replaced === true
+  const actionText = legacyT(action)
+
+  if (isEnglishLocale()) {
+    if (email) {
+      return replaced
+        ? `${actionText} succeeded: ${email} (replaced existing account)`
+        : `${actionText} succeeded: ${email}`
+    }
+    return replaced
+      ? `${actionText} succeeded; replaced existing account`
+      : `${actionText} succeeded; account added`
+  }
+
   if (email) {
     return replaced
       ? `${action}成功: ${email}（已替换旧账号）`
@@ -1089,27 +1155,36 @@ function getBatchImportSuccessMessage(task: OAuthBatchImportTaskStatusResponse):
   const parts: string[] = []
 
   if (createdCount > 0) {
-    parts.push(`新增 ${createdCount} 个`)
+    parts.push(isEnglishLocale() ? `${createdCount} added` : `新增 ${createdCount} 个`)
   }
   if (replacedCount > 0) {
-    parts.push(`替换 ${replacedCount} 个`)
+    parts.push(isEnglishLocale() ? `${replacedCount} replaced` : `替换 ${replacedCount} 个`)
   }
   if (task.failed > 0) {
-    parts.push(`失败 ${task.failed} 个`)
+    parts.push(isEnglishLocale() ? `${task.failed} failed` : `失败 ${task.failed} 个`)
   }
 
   if (parts.length === 0) {
+    if (isEnglishLocale()) {
+      return task.failed > 0 ? `Batch import complete: ${task.failed} failed` : 'Batch import complete'
+    }
     return task.failed > 0 ? `批量导入完成：失败 ${task.failed} 个` : '批量导入完成'
   }
   if (task.failed === 0 && createdCount > 0 && replacedCount === 0) {
+    if (isEnglishLocale()) return `Batch import succeeded: ${createdCount} accounts added`
     return `批量导入成功：${createdCount} 个账号已添加`
   }
   if (task.failed === 0 && createdCount === 0 && replacedCount > 0) {
+    if (isEnglishLocale()) return `Batch import succeeded: ${replacedCount} existing accounts replaced`
     return `批量导入成功：已替换 ${replacedCount} 个旧账号`
   }
 
-  const prefix = task.failed > 0 ? '批量导入完成' : '批量导入成功'
-  return `${prefix}：${parts.join('，')}`
+  const prefix = task.failed > 0
+    ? legacyT('批量导入完成')
+    : legacyT('批量导入成功')
+  return isEnglishLocale()
+    ? `${prefix}: ${parts.join(', ')}`
+    : `${prefix}：${parts.join('，')}`
 }
 
 function scheduleImportPoll(taskId: string, delayMs = 1200) {
@@ -1135,7 +1210,7 @@ async function pollImportTaskStatus(taskId: string) {
         emit('saved')
         handleClose()
       } else {
-        showError(task.error || '批量导入失败', '导入失败')
+        showError(legacyT(task.error || '批量导入失败'), legacyT('导入失败'))
       }
       return
     }
@@ -1143,7 +1218,7 @@ async function pollImportTaskStatus(taskId: string) {
     if (task.status === 'failed') {
       stopImportPolling()
       importing.value = false
-      showError(task.error || task.message || '批量导入失败', '导入失败')
+      showError(legacyT(task.error || task.message || '批量导入失败'), legacyT('导入失败'))
       return
     }
 
@@ -1305,8 +1380,8 @@ async function initOAuth() {
     oauth.value.provider_type = resp.provider_type
   } catch (err: unknown) {
     if (requestId !== oauthInitRequestId) return
-    const errorMessage = parseApiError(err, '初始化授权失败')
-    showError(errorMessage, '错误')
+    const errorMessage = localizedApiError(err, '初始化授权失败')
+    showError(errorMessage, legacyT('错误'))
     mode.value = 'import'
   } finally {
     if (requestId === oauthInitRequestId) {
@@ -1331,8 +1406,8 @@ async function handleCompleteOAuth() {
     handleClose()
   } catch (err: unknown) {
     if (requestId !== oauthCompleteRequestId) return
-    const errorMessage = parseApiError(err, '完成授权失败')
-    showError(errorMessage, '错误')
+    const errorMessage = localizedApiError(err, '完成授权失败')
+    showError(errorMessage, legacyT('错误'))
   } finally {
     if (requestId === oauthCompleteRequestId) {
       oauth.value.completing = false
@@ -1618,7 +1693,7 @@ function decodeBase64Url(value: string): string {
 }
 
 function handleImportInputError(payload: { message: string; title?: string }) {
-  showError(payload.message, payload.title)
+  showError(legacyT(payload.message), payload.title ? legacyT(payload.title) : undefined)
 }
 
 function setWindsurfImportMethod(method: WindsurfImportMethod) {
@@ -1633,7 +1708,7 @@ async function handleWindsurfEmailPasswordImport() {
   const email = windsurfEmail.value.trim()
   const password = windsurfPassword.value.trim()
   if (!email || !password) {
-    showError('请输入邮箱和密码', '格式错误')
+    showError(legacyT('请输入邮箱和密码'), legacyT('格式错误'))
     return
   }
 
@@ -1649,8 +1724,8 @@ async function handleWindsurfEmailPasswordImport() {
     emit('saved')
     handleClose()
   } catch (err: unknown) {
-    const errorMessage = parseApiError(err, '导入失败')
-    showError(errorMessage, '错误')
+    const errorMessage = localizedApiError(err, '导入失败')
+    showError(errorMessage, legacyT('错误'))
   } finally {
     importing.value = false
   }
@@ -1665,13 +1740,13 @@ async function handleImport() {
 
   const inputText = importText.value.trim()
   if (!inputText) {
-    showError('请输入凭据数据', '格式错误')
+    showError(legacyT('请输入凭据数据'), legacyT('格式错误'))
     return
   }
 
   const normalizedCredentials = normalizeBatchImportCredentials(inputText)
   if (!normalizedCredentials.ok) {
-    showError(normalizedCredentials.message, '格式错误')
+    showError(legacyT(normalizedCredentials.message), legacyT('格式错误'))
     return
   }
 
@@ -1708,7 +1783,7 @@ async function handleImport() {
       // 单条导入
       const parsed = parseImportText(normalizedCredentials.credentials)
       if (!parsed) {
-        showError('无法解析输入内容，请检查格式', '格式错误')
+        showError(legacyT('无法解析输入内容，请检查格式'), legacyT('格式错误'))
         return
       }
       const result = await importProviderRefreshToken(props.providerId, {
@@ -1720,8 +1795,8 @@ async function handleImport() {
       handleClose()
     }
   } catch (err: unknown) {
-    const errorMessage = parseApiError(err, '导入失败')
-    showError(errorMessage, '错误')
+    const errorMessage = localizedApiError(err, '导入失败')
+    showError(errorMessage, legacyT('错误'))
   } finally {
     if (!keepImporting) {
       importing.value = false
@@ -1796,8 +1871,8 @@ async function startDeviceAuth() {
     }
   } catch (err: unknown) {
     if (requestId !== deviceAuthRequestId || device.value.auth_type !== requestedAuthType) return
-    const errorMessage = parseApiError(err, '发起设备授权失败')
-    showError(errorMessage, '错误')
+    const errorMessage = localizedApiError(err, '发起设备授权失败')
+    showError(errorMessage, legacyT('错误'))
     device.value.status = 'error'
     device.value.error = errorMessage
   } finally {
@@ -1895,8 +1970,8 @@ async function pollDevice(withCallback = false) {
     }
   } catch (err: unknown) {
     if (withCallback) {
-      const errorMessage = parseApiError(err, '完成授权失败')
-      showError(errorMessage, '错误')
+      const errorMessage = localizedApiError(err, '完成授权失败')
+      showError(errorMessage, legacyT('错误'))
     }
     // 网络错误等，继续轮询
     if (!withCallback && !device.value.callback_required) {

frontend/src/features/providers/components/PriorityManagementDialog.vue

@@ -1,8 +1,8 @@
 <template>
   <Dialog
     :model-value="internalOpen"
-    title="优先级管理"
-    description="拖拽调整顺序，点击序号可编辑（相同数字为同级），保存后自动切换对应的调度策略"
+    :title="legacyT('优先级管理')"
+    :description="legacyT('拖拽调整顺序，点击序号可编辑（相同数字为同级），保存后自动切换对应的调度策略')"
     :icon="ListOrdered"
     size="2xl"
     @update:model-value="handleDialogUpdate"
@@ -21,7 +21,7 @@
           @click="activeMainTab = 'provider'"
         >
           <Layers class="w-4 h-4" />
-          <span>提供商优先</span>
+          <span>{{ legacyT('提供商优先') }}</span>
         </button>
         <button
           type="button"
@@ -34,7 +34,7 @@
           @click="activeMainTab = 'key'"
         >
           <Key class="w-4 h-4" />
-          <span>Key 优先</span>
+          <span>{{ legacyT('Key 优先') }}</span>
         </button>
       </div>
 
@@ -51,7 +51,7 @@
             class="flex flex-col items-center justify-center py-20 text-muted-foreground"
           >
             <Layers class="w-10 h-10 mb-3 opacity-20" />
-            <span class="text-sm">暂无提供商</span>
+            <span class="text-sm">{{ legacyT('暂无提供商') }}</span>
           </div>
 
           <!-- 提供商列表 -->
@@ -98,7 +98,7 @@
                 <div
                   v-else
                   class="w-6 h-6 rounded-md bg-muted/50 flex items-center justify-center text-xs font-medium text-muted-foreground cursor-pointer hover:bg-primary/10 hover:text-primary transition-colors"
-                  title="点击编辑优先级，相同数字为同级"
+                  :title="legacyT('点击编辑优先级，相同数字为同级')"
                   @click.stop="startEditProviderPriority(provider)"
                 >
                   {{ provider.provider_priority }}
@@ -113,7 +113,7 @@
                   variant="secondary"
                   class="text-[10px] px-1.5 h-5 shrink-0"
                 >
-                  停用
+                  {{ legacyT('停用') }}
                 </Badge>
               </div>
               <div class="flex items-center gap-3 shrink-0 ml-2">
@@ -156,7 +156,7 @@
           >
             <div class="flex flex-col items-center gap-2">
               <div class="animate-spin rounded-full h-5 w-5 border-2 border-muted border-t-primary" />
-              <span class="text-xs text-muted-foreground">加载中...</span>
+              <span class="text-xs text-muted-foreground">{{ legacyT('加载中...') }}</span>
             </div>
           </div>
 
@@ -166,7 +166,7 @@
             class="flex flex-col items-center justify-center py-20 text-muted-foreground"
           >
             <Key class="w-10 h-10 mb-3 opacity-20" />
-            <span class="text-sm">暂无 API Key</span>
+            <span class="text-sm">{{ legacyT('暂无 API Key') }}</span>
           </div>
 
           <!-- 左右布局：格式列表 + Key 列表 -->
@@ -261,7 +261,7 @@
                       <div
                         v-else
                         class="w-5 h-5 rounded bg-muted/50 flex items-center justify-center text-[11px] font-medium transition-colors text-muted-foreground cursor-pointer hover:bg-primary/10 hover:text-primary"
-                        title="点击编辑优先级"
+                        :title="legacyT('点击编辑优先级')"
                         @click.stop="startEditKeyPriority(format, key)"
                       >
                         {{ key.priority }}
@@ -281,28 +281,28 @@
                           variant="outline"
                           class="text-[9px] h-4 px-1 shrink-0"
                         >
-                          号池
+                          {{ legacyT('号池') }}
                         </Badge>
                         <Badge
                           v-else-if="key.circuit_breaker_open"
                           variant="destructive"
                           class="text-[9px] h-4 px-1 shrink-0"
                         >
-                          熔断
+                          {{ legacyT('熔断') }}
                         </Badge>
                         <Badge
                           v-else-if="!key.is_active && key.provider_active"
                           variant="secondary"
                           class="text-[9px] h-4 px-1 shrink-0"
                         >
-                          停用
+                          {{ legacyT('停用') }}
                         </Badge>
                       </div>
                       <!-- 第二行：密钥脱敏 · Provider 名称 + Provider 级别状态 -->
                       <div class="flex items-center gap-0 mt-0.5">
                         <template v-if="key.is_pool_aggregate">
                           <span class="text-[10px] text-muted-foreground/70 truncate">
-                            号池: {{ key.pool_active_key_count ?? 0 }}/{{ key.pool_key_count ?? 0 }}
+                            {{ poolKeySummary(key) }}
                           </span>
                           <template v-if="key.provider_type">
                             <span class="text-[10px] text-muted-foreground/40 mx-1">·</span>
@@ -319,7 +319,7 @@
                           variant="secondary"
                           class="text-[9px] h-4 px-1 shrink-0 ml-1"
                         >
-                          停用
+                          {{ legacyT('停用') }}
                         </Badge>
                       </div>
                     </div>
@@ -341,7 +341,7 @@
                           --
                         </div>
                         <div class="text-[10px] text-muted-foreground tabular-nums">
-                          {{ key.is_pool_aggregate ? 'Pool' : (key.rate_multipliers?.[format] ?? 1) + 'x' }}
+                          {{ key.is_pool_aggregate ? legacyT('Pool') : (key.rate_multipliers?.[format] ?? 1) + 'x' }}
                         </div>
                       </div>
                       <!-- 快捷启用/禁用开关 -->
@@ -353,12 +353,12 @@
                             ? 'text-foreground/70 hover:bg-muted hover:text-foreground'
                             : 'text-muted-foreground hover:bg-muted hover:text-foreground'"
                         :title="key.is_pool_aggregate
-                          ? '号池聚合项不支持在此单独开关'
+                          ? legacyT('号池聚合项不支持在此单独开关')
                           : !key.provider_active
-                            ? 'Provider 停用'
+                            ? legacyT('Provider 停用')
                             : key.is_active
-                              ? '点击停用'
-                              : '点击启用'"
+                              ? legacyT('点击停用')
+                              : legacyT('点击启用')"
                         :disabled="key.is_pool_aggregate || !key.provider_active"
                         @click.stop="!key.is_pool_aggregate && toggleKeyActive(format, key)"
                       >
@@ -373,7 +373,7 @@
                   class="flex flex-col items-center justify-center py-20 text-muted-foreground"
                 >
                   <Key class="w-10 h-10 mb-3 opacity-20" />
-                  <span class="text-sm">暂无 {{ format }} 格式的 Key</span>
+                  <span class="text-sm">{{ emptyFormatKeyText(format) }}</span>
                 </div>
               </div>
             </div>
@@ -386,10 +386,10 @@
       <div class="flex items-center justify-between w-full">
         <div class="flex items-center gap-3">
           <div class="text-xs text-muted-foreground whitespace-nowrap">
-            当前模式: <span class="font-medium text-foreground/80">{{ activeMainTab === 'provider' ? '提供商优先' : 'Key 优先' }}</span>
+            {{ legacyT('当前模式:') }} <span class="font-medium text-foreground/80">{{ activeMainTabLabel }}</span>
           </div>
           <div class="flex items-center gap-1.5 pl-3 border-l border-border/60">
-            <span class="text-xs text-muted-foreground">调度:</span>
+            <span class="text-xs text-muted-foreground">{{ legacyT('调度:') }}</span>
             <div class="flex gap-0.5 p-0.5 bg-muted/40 rounded-md">
               <button
                 type="button"
@@ -399,10 +399,10 @@
                     ? 'bg-primary text-primary-foreground shadow-sm'
                     : 'text-muted-foreground hover:text-foreground hover:bg-muted/50'
                 ]"
-                title="优先使用已缓存的Provider，利用Prompt Cache"
+                :title="legacyT('优先使用已缓存的Provider，利用Prompt Cache')"
                 @click="schedulingMode = 'cache_affinity'"
               >
-                缓存亲和
+                {{ legacyT('缓存亲和') }}
               </button>
               <button
                 type="button"
@@ -412,10 +412,10 @@
                     ? 'bg-primary text-primary-foreground shadow-sm'
                     : 'text-muted-foreground hover:text-foreground hover:bg-muted/50'
                 ]"
-                title="同优先级内随机轮换，不考虑缓存"
+                :title="legacyT('同优先级内随机轮换，不考虑缓存')"
                 @click="schedulingMode = 'load_balance'"
               >
-                负载均衡
+                {{ legacyT('负载均衡') }}
               </button>
               <button
                 type="button"
@@ -425,10 +425,10 @@
                     ? 'bg-primary text-primary-foreground shadow-sm'
                     : 'text-muted-foreground hover:text-foreground hover:bg-muted/50'
                 ]"
-                title="严格按优先级顺序，不考虑缓存"
+                :title="legacyT('严格按优先级顺序，不考虑缓存')"
                 @click="schedulingMode = 'fixed_order'"
               >
-                固定顺序
+                {{ legacyT('固定顺序') }}
               </button>
             </div>
           </div>
@@ -444,7 +444,7 @@
               v-if="saving"
               class="w-3.5 h-3.5 mr-1.5 animate-spin"
             />
-            {{ saving ? '保存中' : '保存' }}
+            {{ saving ? legacyT('保存中') : legacyT('保存') }}
           </Button>
           <Button
             variant="outline"
@@ -452,7 +452,7 @@
             class="min-w-[72px]"
             @click="close"
           >
-            取消
+            {{ legacyT('取消') }}
           </Button>
         </div>
       </div>
@@ -468,6 +468,7 @@ import Button from '@/components/ui/button.vue'
 import Badge from '@/components/ui/badge.vue'
 import { useToast } from '@/composables/useToast'
 import { parseApiError } from '@/utils/errorParser'
+import { useI18n } from '@/i18n'
 import { updateProvider, updateProviderKey } from '@/api/endpoints'
 import { getProvidersSummary, type ProviderWithEndpointsSummary } from '@/api/endpoints'
 import { adminApi } from '@/api/admin'
@@ -519,6 +520,7 @@ const emit = defineEmits<{
 }>()
 
 const { success, error: showError } = useToast()
+const { legacyT } = useI18n()
 
 // 内部状态
 const internalOpen = computed(() => props.modelValue)
@@ -562,6 +564,22 @@ const schedulingMode = ref<'fixed_order' | 'load_balance' | 'cache_affinity'>('c
 // 余额数据缓存 {providerId: ActionResultResponse}
 const balanceCache = ref<Record<string, ActionResultResponse>>({})
 
+const activeMainTabLabel = computed(() =>
+  legacyT(activeMainTab.value === 'provider' ? '提供商优先' : 'Key 优先')
+)
+
+function poolKeySummary(key: KeyWithMeta): string {
+  return `${legacyT('号池')}: ${key.pool_active_key_count ?? 0}/${key.pool_key_count ?? 0}`
+}
+
+function emptyFormatKeyText(format: string): string {
+  return legacyT(`暂无 ${format} 格式的 Key`)
+}
+
+function localizedApiError(error: unknown, fallback: string): string {
+  return legacyT(parseApiError(error, fallback))
+}
+
 // 类型守卫函数
 function isBalanceInfo(data: unknown): data is BalanceInfo {
   return data !== null && typeof data === 'object' && 'total_available' in data
@@ -863,7 +881,7 @@ const PROVIDER_TYPE_LABELS: Record<string, string> = {
 
 function formatProviderType(type?: string): string {
   if (!type) return ''
-  return PROVIDER_TYPE_LABELS[type] || type
+  return legacyT(PROVIDER_TYPE_LABELS[type] || type)
 }
 
 function isPoolManagedProvider(providerId: string): boolean {
@@ -928,7 +946,7 @@ function buildPoolAggregateItem(format: string, providerId: string, sourceKeys:
     ? Number(poolPriorityRaw)
     : fallbackPriority
 
-  const providerName = provider?.name || sourceKeys[0]?.provider_name || '未知 Provider'
+  const providerName = provider?.name || sourceKeys[0]?.provider_name || 'Unknown Provider'
   const activeKeyCount = sourceKeys.filter((k) => k.is_active).length
   const providerActive = provider?.is_active ?? sourceKeys.some((k) => k.provider_active)
   const healthCandidates = sourceKeys.map((k) => k.health_score).filter((v): v is number => v != null)
@@ -1171,7 +1189,7 @@ async function loadKeysByFormat() {
     }
   } catch (err: unknown) {
     originalKeyPriorityById = new Map()
-    showError(parseApiError(err, '加载 Key 列表失败'), '错误')
+    showError(localizedApiError(err, '加载 Key 列表失败'), legacyT('错误'))
   } finally {
     loadingKeys.value = false
   }
@@ -1195,9 +1213,9 @@ async function toggleKeyActive(format: string, key: KeyWithMeta) {
     for (const fmt of Object.keys(keysByFormat.value)) {
       keysByFormat.value[fmt] = sortKeysByActiveAndPriority(keysByFormat.value[fmt])
     }
-    success(newStatus ? 'Key 已启用' : 'Key 已停用')
+    success(legacyT(newStatus ? 'Key 已启用' : 'Key 已停用'))
   } catch (err: unknown) {
-    showError(parseApiError(err, '操作失败'), '错误')
+    showError(localizedApiError(err, '操作失败'), legacyT('错误'))
   }
 }
 
@@ -1539,7 +1557,7 @@ async function save() {
     )
     snapshotCurrentPriorityBaseline()
 
-    success('优先级已保存')
+    success(legacyT('优先级已保存'))
     emit('saved')
 
     // 提供商优先模式保存后关闭，Key 优先模式保存后保持打开方便继续调整
@@ -1547,7 +1565,7 @@ async function save() {
       close()
     }
   } catch (err: unknown) {
-    showError(parseApiError(err, '保存失败'), '错误')
+    showError(localizedApiError(err, '保存失败'), legacyT('错误'))
   } finally {
     saving.value = false
   }

frontend/src/features/providers/components/ProviderBalanceCell.vue

@@ -5,7 +5,7 @@
     class="flex items-center gap-1.5 text-xs text-muted-foreground"
   >
     <Loader2 class="h-3 w-3 animate-spin" />
-    <span>加载中...</span>
+    <span>{{ legacyT('加载中...') }}</span>
   </div>
   <!-- 显示从上游 API 查询的余额 -->
   <div
@@ -75,7 +75,7 @@
         <span
           class="text-[10px] text-amber-600 dark:text-amber-500"
           :title="getProviderCookieExpired(provider.id)?.message"
-        >签到 Cookie 已失效</span>
+        >{{ legacyT('签到 Cookie 已失效') }}</span>
       </div>
       <!-- 签到状态 -->
       <div
@@ -86,12 +86,12 @@
           v-if="getProviderCheckin(provider.id)?.success !== false"
           class="text-[10px] text-muted-foreground/60"
           :title="getProviderCheckin(provider.id)?.message"
-        >已签到</span>
+        >{{ legacyT('已签到') }}</span>
         <span
           v-else
           class="text-[10px] text-destructive/70"
           :title="getProviderCheckin(provider.id)?.message"
-        >签到失败</span>
+        >{{ legacyT('签到失败') }}</span>
       </div>
     </div>
   </div>
@@ -133,6 +133,9 @@ import Badge from '@/components/ui/badge.vue'
 import type { ProviderWithEndpointsSummary } from '@/api/endpoints'
 import { formatBillingType } from '@/utils/format'
 import type { BalanceExtraItem } from '@/features/providers/auth-templates'
+import { useI18n } from '@/i18n'
+
+const { legacyT } = useI18n()
 
 defineProps<{
   provider: ProviderWithEndpointsSummary

frontend/src/features/providers/components/ProviderDeleteProgressCard.vue

@@ -0,0 +1,94 @@
+<template>
+  <Card
+    v-if="progress"
+    class="border-primary/30 bg-primary/5"
+  >
+    <div class="px-5 py-4 space-y-4">
+      <div class="flex items-start justify-between gap-4">
+        <div class="min-w-0">
+          <div class="text-sm font-semibold text-foreground">
+            {{ legacyT('正在删除提供商') }}: {{ progress.providerName }}
+          </div>
+          <div class="mt-1 text-xs text-muted-foreground">
+            {{ stageLabel }} · {{ legacyT(progress.message || '后台处理中') }}
+          </div>
+        </div>
+        <div class="shrink-0 text-right">
+          <div class="text-xs font-medium text-primary">
+            {{ overallPercent }}%
+          </div>
+          <div class="text-[11px] text-muted-foreground">
+            {{ completedUnits }}/{{ totalUnits }}
+          </div>
+        </div>
+      </div>
+
+      <div class="space-y-2">
+        <div class="flex items-center justify-between text-xs text-muted-foreground">
+          <span>{{ legacyT('总体进度') }}</span>
+          <span>{{ completedUnits }}/{{ totalUnits }}</span>
+        </div>
+        <div class="h-2 rounded-full bg-primary/10 overflow-hidden">
+          <div
+            class="h-full bg-primary transition-all duration-300"
+            :style="{ width: `${overallPercent}%` }"
+          />
+        </div>
+      </div>
+
+      <div class="grid gap-3 md:grid-cols-2">
+        <div class="space-y-2">
+          <div class="flex items-center justify-between text-xs text-muted-foreground">
+            <span>{{ legacyT('账号删除') }}</span>
+            <span>{{ progress.deletedKeys }}/{{ progress.totalKeys || '...' }}</span>
+          </div>
+          <div class="h-2 rounded-full bg-primary/10 overflow-hidden">
+            <div
+              class="h-full bg-primary/80 transition-all duration-300"
+              :style="{ width: `${keysPercent}%` }"
+            />
+          </div>
+        </div>
+
+        <div class="space-y-2">
+          <div class="flex items-center justify-between text-xs text-muted-foreground">
+            <span>{{ legacyT('端点删除') }}</span>
+            <span>{{ progress.deletedEndpoints }}/{{ progress.totalEndpoints || '...' }}</span>
+          </div>
+          <div class="h-2 rounded-full bg-primary/10 overflow-hidden">
+            <div
+              class="h-full bg-primary/60 transition-all duration-300"
+              :style="{ width: `${endpointsPercent}%` }"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+  </Card>
+</template>
+
+<script setup lang="ts">
+import Card from '@/components/ui/card.vue'
+import { useI18n } from '@/i18n'
+
+export interface ProviderDeleteProgressView {
+  providerName: string
+  totalKeys: number
+  deletedKeys: number
+  totalEndpoints: number
+  deletedEndpoints: number
+  message: string
+}
+
+defineProps<{
+  progress: ProviderDeleteProgressView | null
+  stageLabel: string
+  totalUnits: number
+  completedUnits: number
+  overallPercent: number
+  keysPercent: number
+  endpointsPercent: number
+}>()
+
+const { legacyT } = useI18n()
+</script>

frontend/src/features/providers/components/ProviderDetailHeader.vue

@@ -0,0 +1,204 @@
+<template>
+  <div class="sticky top-0 z-10 bg-background border-b px-4 sm:px-6 pt-4 sm:pt-6 pb-3 sm:pb-3">
+    <div class="flex items-center justify-between gap-x-3 sm:gap-x-4 flex-wrap">
+      <div class="flex items-center gap-2 min-w-0">
+        <h2 class="text-lg sm:text-xl font-bold truncate">
+          {{ provider.name }}
+        </h2>
+        <Badge
+          :variant="provider.is_active ? 'default' : 'secondary'"
+          class="text-xs shrink-0"
+        >
+          {{ legacyT(provider.is_active ? '活跃' : '停用') }}
+        </Badge>
+      </div>
+      <div class="flex items-center gap-1 shrink-0">
+        <span :title="formatConversionTitle">
+          <Button
+            variant="ghost"
+            size="icon"
+            :class="(provider.enable_format_conversion || systemFormatConversionEnabled) ? 'text-primary' : ''"
+            :disabled="systemFormatConversionEnabled"
+            @click="$emit('toggleFormatConversion')"
+          >
+            <Shuffle class="w-4 h-4" />
+          </Button>
+        </span>
+        <span :title="legacyT(hasFailoverRules ? '已配置故障转移规则（点击编辑）' : '配置故障转移规则')">
+          <Button
+            variant="ghost"
+            size="icon"
+            :class="hasFailoverRules ? 'text-orange-500 dark:text-orange-400' : ''"
+            @click="$emit('openFailoverRules')"
+          >
+            <GitBranch class="w-4 h-4" />
+          </Button>
+        </span>
+        <Popover
+          :open="providerProxyPopoverOpen"
+          @update:open="$emit('update:providerProxyPopoverOpen', $event)"
+        >
+          <PopoverTrigger as-child>
+            <Button
+              variant="ghost"
+              size="icon"
+              :class="provider.proxy?.node_id ? 'text-blue-500' : ''"
+              :disabled="savingProviderProxy"
+              :title="provider.proxy?.node_id ? `${legacyT('代理')}: ${providerProxyNodeName}` : legacyT('设置代理节点')"
+            >
+              <Globe class="w-4 h-4" />
+            </Button>
+          </PopoverTrigger>
+          <PopoverContent
+            class="w-72 p-3"
+            side="bottom"
+            align="end"
+          >
+            <div class="space-y-2">
+              <div class="flex items-center justify-between">
+                <span class="text-xs font-medium">{{ legacyT('代理节点') }}</span>
+                <Button
+                  v-if="provider.proxy?.node_id"
+                  variant="ghost"
+                  size="sm"
+                  class="h-6 px-2 text-[10px] text-muted-foreground"
+                  :disabled="savingProviderProxy"
+                  @click="$emit('clearProviderProxy')"
+                >
+                  {{ legacyT('清除') }}
+                </Button>
+              </div>
+              <ProxyNodeSelect
+                :model-value="provider.proxy?.node_id || ''"
+                trigger-class="h-8"
+                @update:model-value="$emit('setProviderProxy', $event)"
+              />
+              <p class="text-[10px] text-muted-foreground">
+                {{ legacyT(provider.proxy?.node_id ? '当前使用独立代理' : '未设置代理节点') }}
+              </p>
+            </div>
+          </PopoverContent>
+        </Popover>
+        <Button
+          variant="ghost"
+          size="icon"
+          :title="legacyT('编辑提供商')"
+          @click="$emit('edit', provider)"
+        >
+          <Edit class="w-4 h-4" />
+        </Button>
+        <Button
+          variant="ghost"
+          size="icon"
+          :title="legacyT(provider.is_active ? '点击停用' : '点击启用')"
+          @click="$emit('toggleStatus', provider)"
+        >
+          <Power class="w-4 h-4" />
+        </Button>
+        <Button
+          variant="ghost"
+          size="icon"
+          :title="legacyT('关闭')"
+          @click="$emit('close')"
+        >
+          <X class="w-4 h-4" />
+        </Button>
+      </div>
+    </div>
+
+    <div
+      v-if="provider.website"
+      class="-mt-0.5"
+    >
+      <a
+        :href="provider.website"
+        target="_blank"
+        rel="noopener noreferrer"
+        class="text-xs text-muted-foreground hover:text-primary hover:underline transition-colors truncate block"
+        :title="provider.website"
+      >{{ provider.website }}</a>
+    </div>
+
+    <div class="flex items-center gap-1.5 flex-wrap mt-3">
+      <template v-if="loadingProviderEndpoints && endpoints.length === 0">
+        <span class="inline-flex items-center gap-1.5 text-xs text-muted-foreground">
+          <Loader2 class="w-3.5 h-3.5 animate-spin" />
+          {{ legacyT('加载端点中') }}
+        </span>
+      </template>
+      <template v-else>
+        <template
+          v-for="endpoint in endpoints"
+          :key="endpoint.id"
+        >
+          <span
+            class="text-xs px-2 py-0.5 rounded-md border border-border bg-background hover:bg-accent hover:border-accent-foreground/20 cursor-pointer transition-colors font-medium"
+            :class="{ 'opacity-40': !endpoint.is_active }"
+            :title="legacyT('编辑端点')"
+            @click="$emit('editEndpoint', endpoint)"
+          >{{ formatApiFormat(endpoint.api_format) }}</span>
+        </template>
+        <span
+          v-if="endpoints.length > 0"
+          class="text-xs px-2 py-0.5 rounded-md border border-dashed border-border hover:bg-accent hover:border-accent-foreground/20 cursor-pointer transition-colors text-muted-foreground"
+          :title="legacyT('编辑端点')"
+          @click="$emit('addEndpoint')"
+        >{{ legacyT('编辑') }}</span>
+        <Button
+          v-else
+          variant="outline"
+          size="sm"
+          class="h-7 text-xs"
+          @click="$emit('addEndpoint')"
+        >
+          <Plus class="w-3 h-3 mr-1" />
+          {{ legacyT('添加 API 端点') }}
+        </Button>
+      </template>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { Edit, GitBranch, Globe, Loader2, Plus, Power, Shuffle, X } from 'lucide-vue-next'
+import Button from '@/components/ui/button.vue'
+import Badge from '@/components/ui/badge.vue'
+import { Popover, PopoverTrigger, PopoverContent } from '@/components/ui'
+import { useI18n } from '@/i18n'
+import { formatApiFormat } from '@/api/endpoints/types/api-format'
+import type { ProviderEndpoint, ProviderWithEndpointsSummary } from '@/api/endpoints'
+import ProxyNodeSelect from './ProxyNodeSelect.vue'
+
+const props = defineProps<{
+  provider: ProviderWithEndpointsSummary
+  endpoints: ProviderEndpoint[]
+  loadingProviderEndpoints: boolean
+  systemFormatConversionEnabled: boolean
+  hasFailoverRules: boolean
+  providerProxyPopoverOpen: boolean
+  providerProxyNodeName: string
+  savingProviderProxy: boolean
+}>()
+
+defineEmits<{
+  (e: 'toggleFormatConversion'): void
+  (e: 'openFailoverRules'): void
+  (e: 'update:providerProxyPopoverOpen', value: boolean): void
+  (e: 'setProviderProxy', value: string): void
+  (e: 'clearProviderProxy'): void
+  (e: 'edit', provider: ProviderWithEndpointsSummary): void
+  (e: 'toggleStatus', provider: ProviderWithEndpointsSummary): void
+  (e: 'close'): void
+  (e: 'editEndpoint', endpoint: ProviderEndpoint): void
+  (e: 'addEndpoint'): void
+}>()
+
+const { legacyT } = useI18n()
+
+const formatConversionTitle = computed(() => {
+  if (props.systemFormatConversionEnabled) return legacyT('系统级格式转换已启用')
+  if (props.provider.enable_format_conversion) return legacyT('已启用格式转换（点击关闭）')
+  return legacyT('启用格式转换')
+})
+</script>

frontend/src/features/providers/components/ProviderEmptyState.vue

@@ -0,0 +1,30 @@
+<template>
+  <div class="flex flex-col items-center justify-center py-16 text-center">
+    <div class="mb-2 text-muted-foreground">
+      {{ legacyT(hasActiveFilters ? '未找到匹配当前筛选条件的提供商' : '暂无提供商，点击右上角添加') }}
+    </div>
+    <Button
+      v-if="hasActiveFilters"
+      variant="outline"
+      size="sm"
+      @click="$emit('resetFilters')"
+    >
+      {{ legacyT('清除筛选') }}
+    </Button>
+  </div>
+</template>
+
+<script setup lang="ts">
+import Button from '@/components/ui/button.vue'
+import { useI18n } from '@/i18n'
+
+defineProps<{
+  hasActiveFilters: boolean
+}>()
+
+defineEmits<{
+  resetFilters: []
+}>()
+
+const { legacyT } = useI18n()
+</script>

frontend/src/features/providers/components/ProviderFormDialog.vue

@@ -1,8 +1,8 @@
 <template>
   <Dialog
     :model-value="internalOpen"
-    :title="isEditMode ? '编辑提供商' : '添加提供商'"
-    :description="isEditMode ? '更新提供商配置。API 端点和密钥需在详情页面单独管理。' : '创建新的提供商配置。创建后可以为其添加 API 端点和密钥。'"
+    :title="legacyT(isEditMode ? '编辑提供商' : '添加提供商')"
+    :description="legacyT(isEditMode ? '更新提供商配置。API 端点和密钥需在详情页面单独管理。' : '创建新的提供商配置。创建后可以为其添加 API 端点和密钥。')"
     :icon="isEditMode ? SquarePen : Server"
     size="xl"
     @update:model-value="handleDialogUpdate"
@@ -14,33 +14,33 @@
       <!-- 基本信息 -->
       <div class="space-y-3">
         <h3 class="text-sm font-medium border-b pb-2">
-          基本信息
+          {{ legacyT('基本信息') }}
         </h3>
 
         <div class="space-y-1.5">
-          <Label for="name">名称 *</Label>
+          <Label for="name">{{ legacyT('名称 *') }}</Label>
           <Input
             id="name"
             v-model="form.name"
-            placeholder="例如: OpenAI 主账号"
+            :placeholder="legacyT('例如: OpenAI 主账号')"
           />
         </div>
 
         <div class="grid grid-cols-2 gap-4">
           <div class="space-y-1.5">
-            <Label>提供商类型</Label>
+            <Label>{{ legacyT('提供商类型') }}</Label>
             <Select
               v-model="form.provider_type"
               :disabled="isEditMode"
             >
               <SelectTrigger>
-                <SelectValue placeholder="请选择" />
+                <SelectValue :placeholder="legacyT('请选择')" />
               </SelectTrigger>
               <SelectContent>
                 <!-- 新建模式：允许自定义及各反代类型 -->
                 <template v-if="!isEditMode">
                   <SelectItem value="custom">
-                    自定义
+                    {{ legacyT('自定义') }}
                   </SelectItem>
                   <SelectItem value="vertex_ai">
                     Vertex AI
@@ -49,7 +49,7 @@
                     value="claude_code"
                     disabled
                   >
-                    ClaudeCode（暂不可用）
+                    {{ legacyT('ClaudeCode（暂不可用）') }}
                   </SelectItem>
                   <SelectItem value="codex">
                     Codex
@@ -76,7 +76,7 @@
                 <!-- 编辑模式：显示所有类型（兼容已有数据） -->
                 <template v-else>
                   <SelectItem value="custom">
-                    自定义
+                    {{ legacyT('自定义') }}
                   </SelectItem>
                   <SelectItem value="vertex_ai">
                     Vertex AI
@@ -112,15 +112,15 @@
               v-if="!isEditMode && form.provider_type !== 'custom'"
               class="text-xs text-muted-foreground"
             >
-              反代使用固定端点且不可修改
+              {{ legacyT('反代使用固定端点且不可修改') }}
             </p>
           </div>
           <div class="space-y-1.5">
-            <Label for="website">主站链接</Label>
+            <Label for="website">{{ legacyT('主站链接') }}</Label>
             <Input
               id="website"
               v-model="form.website"
-              placeholder="https://example.com（可选）"
+              :placeholder="legacyT('https://example.com（可选）')"
             />
           </div>
         </div>
@@ -130,15 +130,15 @@
       <div class="space-y-3">
         <div class="grid grid-cols-2 gap-4">
           <h3 class="text-sm font-medium border-b pb-2">
-            计费与限流
+            {{ legacyT('计费与限流') }}
           </h3>
           <h3 class="text-sm font-medium border-b pb-2">
-            请求配置
+            {{ legacyT('请求配置') }}
           </h3>
         </div>
         <div class="grid grid-cols-2 gap-4">
           <div class="space-y-1.5">
-            <Label>计费类型</Label>
+            <Label>{{ legacyT('计费类型') }}</Label>
             <Select
               v-model="form.billing_type"
             >
@@ -147,25 +147,25 @@
               </SelectTrigger>
               <SelectContent>
                 <SelectItem value="monthly_quota">
-                  月卡额度
+                  {{ legacyT('月卡额度') }}
                 </SelectItem>
                 <SelectItem value="pay_as_you_go">
-                  按量付费
+                  {{ legacyT('按量付费') }}
                 </SelectItem>
                 <SelectItem value="free_tier">
-                  免费套餐
+                  {{ legacyT('免费套餐') }}
                 </SelectItem>
               </SelectContent>
             </Select>
           </div>
           <div class="space-y-1.5">
-            <Label>最大重试次数</Label>
+            <Label>{{ legacyT('最大重试次数') }}</Label>
             <Input
               :model-value="form.max_retries ?? ''"
               type="number"
               min="0"
               max="999"
-              placeholder="默认 2"
+              :placeholder="legacyT('默认 2')"
               @update:model-value="(v) => form.max_retries = parseNumberInput(v)"
             />
           </div>
@@ -175,8 +175,8 @@
         <div class="grid grid-cols-2 gap-4">
           <div class="space-y-1.5">
             <Label>
-              流式首字节超时
-              <span class="text-xs text-muted-foreground">(秒)</span>
+              {{ legacyT('流式首字节超时') }}
+              <span class="text-xs text-muted-foreground">{{ legacyT('(秒)') }}</span>
             </Label>
             <Input
               :model-value="form.stream_first_byte_timeout ?? ''"
@@ -190,8 +190,8 @@
           </div>
           <div class="space-y-1.5">
             <Label>
-              非流式请求超时
-              <span class="text-xs text-muted-foreground">(秒)</span>
+              {{ legacyT('非流式请求超时') }}
+              <span class="text-xs text-muted-foreground">{{ legacyT('(秒)') }}</span>
             </Label>
             <Input
               :model-value="form.request_timeout ?? ''"
@@ -211,7 +211,7 @@
           class="grid grid-cols-2 gap-4 p-3 border rounded-lg bg-muted/50"
         >
           <div class="space-y-1.5">
-            <Label class="text-xs">周期额度 (USD)</Label>
+            <Label class="text-xs">{{ legacyT('周期额度 (USD)') }}</Label>
             <Input
               :model-value="form.monthly_quota_usd ?? ''"
               type="number"
@@ -221,7 +221,7 @@
             />
           </div>
           <div class="space-y-1.5">
-            <Label class="text-xs">重置周期 (天)</Label>
+            <Label class="text-xs">{{ legacyT('重置周期 (天)') }}</Label>
             <Input
               :model-value="form.quota_reset_day ?? ''"
               type="number"
@@ -232,7 +232,7 @@
           </div>
           <div class="space-y-1.5">
             <Label class="text-xs">
-              周期开始时间 <span class="text-red-500">*</span>
+              {{ legacyT('周期开始时间') }} <span class="text-red-500">*</span>
             </Label>
             <Input
               v-model="form.quota_last_reset_at"
@@ -240,7 +240,7 @@
             />
           </div>
           <div class="space-y-1.5">
-            <Label class="text-xs">过期时间</Label>
+            <Label class="text-xs">{{ legacyT('过期时间') }}</Label>
             <Input
               v-model="form.quota_expires_at"
               type="datetime-local"
@@ -252,14 +252,14 @@
       <!-- 功能开关 -->
       <div class="space-y-3">
         <h3 class="text-sm font-medium border-b pb-2">
-          功能开关
+          {{ legacyT('功能开关') }}
         </h3>
 
         <div class="flex items-center justify-between p-3 border rounded-lg bg-muted/50">
           <div class="space-y-0.5">
-            <span class="text-sm font-medium">格式转换保持优先级</span>
+            <span class="text-sm font-medium">{{ legacyT('格式转换保持优先级') }}</span>
             <p class="text-xs text-muted-foreground">
-              跨格式请求时保持原优先级排名，不降级到格式匹配的提供商之后
+              {{ legacyT('跨格式请求时保持原优先级排名，不降级到格式匹配的提供商之后') }}
             </p>
           </div>
           <Switch
@@ -270,9 +270,9 @@
 
         <div class="flex items-center justify-between p-3 border rounded-lg bg-muted/50">
           <div class="space-y-0.5">
-            <span class="text-sm font-medium">号池调度模式</span>
+            <span class="text-sm font-medium">{{ legacyT('号池调度模式') }}</span>
             <p class="text-xs text-muted-foreground">
-              启用后该提供商的密钥将由号池统一调度
+              {{ legacyT('启用后该提供商的密钥将由号池统一调度') }}
             </p>
           </div>
           <Switch
@@ -286,9 +286,9 @@
           class="flex items-center justify-between p-3 border rounded-lg bg-muted/50"
         >
           <div class="space-y-0.5">
-            <span class="text-sm font-medium">模拟缓存模式</span>
+            <span class="text-sm font-medium">{{ legacyT('模拟缓存模式') }}</span>
             <p class="text-xs text-muted-foreground leading-relaxed">
-              启用后仅对 Kiro 请求模拟 prompt cache 读写计量。
+              {{ legacyT('启用后仅对 Kiro 请求模拟 prompt cache 读写计量。') }}
             </p>
           </div>
           <Switch
@@ -299,9 +299,9 @@
 
         <div class="flex items-center justify-between gap-4 p-3 border rounded-lg bg-muted/50">
           <div class="space-y-0.5">
-            <span class="text-sm font-medium">敏感信息保护</span>
+            <span class="text-sm font-medium">{{ legacyT('敏感信息保护') }}</span>
             <p class="text-xs text-muted-foreground leading-relaxed">
-              请前往模块管理-敏感信息保护中配置详细规则。
+              {{ legacyT('请前往模块管理-敏感信息保护中配置详细规则。') }}
             </p>
           </div>
         </div>
@@ -315,13 +315,13 @@
         :disabled="loading"
         @click="handleCancel"
       >
-        取消
+        {{ legacyT('取消') }}
       </Button>
       <Button
         :disabled="loading || !form.name"
         @click="handleSubmit"
       >
-        {{ loading ? (isEditMode ? '保存中...' : '创建中...') : (isEditMode ? '保存' : '创建') }}
+        {{ submitLabel }}
       </Button>
     </template>
   </Dialog>
@@ -344,6 +344,7 @@ import {
 import { Server, SquarePen } from 'lucide-vue-next'
 import { useToast } from '@/composables/useToast'
 import { useFormDialog } from '@/composables/useFormDialog'
+import { useI18n } from '@/i18n'
 import {
   createProvider,
   normalizePoolAdvancedConfig,
@@ -368,6 +369,7 @@ const emit = defineEmits<{
 }>()
 
 const { success, error: showError } = useToast()
+const { legacyT } = useI18n()
 const loading = ref(false)
 
 // 内部状态
@@ -381,6 +383,13 @@ const defaultPriority = computed(() => {
   return 100
 })
 
+const submitLabel = computed(() => {
+  if (loading.value) {
+    return legacyT(isEditMode.value ? '保存中...' : '创建中...')
+  }
+  return legacyT(isEditMode.value ? '保存' : '创建')
+})
+
 // 表单数据
 const form = ref({
   name: '',
@@ -494,24 +503,24 @@ watch(() => form.value.provider_type, () => {
 // 提交表单
 const handleSubmit = async () => {
   if (!isEditMode.value && form.value.provider_type === 'claude_code') {
-    showError('ClaudeCode 提供商类型暂时禁用', '验证失败')
+    showError(legacyT('ClaudeCode 提供商类型暂时禁用'), legacyT('验证失败'))
     return
   }
 
   // 月卡类型必须设置周期开始时间
   if (form.value.billing_type === 'monthly_quota' && !form.value.quota_last_reset_at) {
-    showError('月卡类型必须设置周期开始时间', '验证失败')
+    showError(legacyT('月卡类型必须设置周期开始时间'), legacyT('验证失败'))
     return
   }
 
   const quotaLastResetAt = dateTimeLocalToRfc3339(form.value.quota_last_reset_at)
   if (form.value.billing_type === 'monthly_quota' && !quotaLastResetAt) {
-    showError('周期开始时间必须是合法时间', '验证失败')
+    showError(legacyT('周期开始时间必须是合法时间'), legacyT('验证失败'))
     return
   }
   const quotaExpiresAt = dateTimeLocalToRfc3339(form.value.quota_expires_at)
   if (form.value.quota_expires_at && !quotaExpiresAt) {
-    showError('过期时间必须是合法时间', '验证失败')
+    showError(legacyT('过期时间必须是合法时间'), legacyT('验证失败'))
     return
   }
 
@@ -555,19 +564,19 @@ const handleSubmit = async () => {
         ...basePayload,
         provider_priority: form.value.provider_priority,
       })
-      success('提供商更新成功')
+      success(legacyT('提供商更新成功'))
       emit('providerUpdated', updated)
     } else {
       // 创建提供商（优先级由后端自动置顶）
       await createProvider(basePayload)
-      success('提供商已创建，请继续添加端点和密钥，或在优先级管理中调整顺序', '创建成功')
+      success(legacyT('提供商已创建，请继续添加端点和密钥，或在优先级管理中调整顺序'), legacyT('创建成功'))
       emit('providerCreated')
     }
 
     emit('update:modelValue', false)
   } catch (error: unknown) {
     const action = isEditMode.value ? '更新' : '创建'
-    showError(parseApiError(error, `${action}提供商失败`), `${action}失败`)
+    showError(parseApiError(error, legacyT(`${action}提供商失败`)), legacyT(`${action}失败`))
   } finally {
     loading.value = false
   }

frontend/src/features/providers/components/ProviderMobileCard.vue

@@ -23,7 +23,7 @@
             :variant="provider.is_active ? 'success' : 'secondary'"
             class="text-xs shrink-0"
           >
-            {{ provider.is_active ? '活跃' : '停用' }}
+            {{ legacyT(provider.is_active ? '活跃' : '停用') }}
           </Badge>
         </div>
         <!-- 内联编辑备注 (移动端) -->
@@ -37,19 +37,19 @@
             v-model="localDescriptionValue"
             v-auto-focus
             class="flex-1 min-w-0 text-xs px-1.5 py-0.5 rounded border border-border bg-background text-foreground focus:outline-none focus:ring-1 focus:ring-primary/50"
-            placeholder="输入备注..."
+            :placeholder="legacyT('输入备注...')"
             @keydown="handleDescriptionKeydown"
           >
           <button
             class="shrink-0 p-0.5 rounded hover:bg-muted text-primary"
-            title="保存"
+            :title="legacyT('保存')"
             @click="handleSave"
           >
             <Check class="w-3.5 h-3.5" />
           </button>
           <button
             class="shrink-0 p-0.5 rounded hover:bg-muted text-muted-foreground"
-            title="取消"
+            :title="legacyT('取消')"
             @click="handleCancel"
           >
             <X class="w-3.5 h-3.5" />
@@ -65,7 +65,7 @@
           v-else
           class="text-xs text-muted-foreground cursor-pointer hover:text-foreground/70 transition-colors"
           @click="handleStartEdit"
-        >添加备注</span>
+        >{{ legacyT('添加备注') }}</span>
       </div>
       <div
         class="flex items-center gap-0.5 shrink-0"
@@ -75,7 +75,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7"
-          title="查看详情"
+          :title="legacyT('查看详情')"
           @click="$emit('viewDetail', provider.id)"
         >
           <Eye class="h-3.5 w-3.5" />
@@ -84,7 +84,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7"
-          title="编辑"
+          :title="legacyT('编辑')"
           @click="$emit('editProvider', provider)"
         >
           <Edit class="h-3.5 w-3.5" />
@@ -93,7 +93,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7"
-          title="扩展操作配置"
+          :title="legacyT('扩展操作配置')"
           @click="$emit('openOpsConfig', provider)"
         >
           <KeyRound class="h-3.5 w-3.5" />
@@ -131,31 +131,31 @@
         class="text-muted-foreground flex items-center gap-1"
       >
         <Loader2 class="h-3 w-3 animate-spin" />
-        加载中...
+        {{ legacyT('加载中...') }}
       </span>
       <!-- 余额（从上游 API 查询） -->
       <span
         v-else-if="provider.ops_configured && getProviderBalance(provider.id)"
         class="text-muted-foreground"
       >
-        余额 <span class="font-semibold text-foreground/90">{{ formatBalanceDisplay(getProviderBalance(provider.id)) }}</span>
+        {{ legacyT('余额') }} <span class="font-semibold text-foreground/90">{{ formatBalanceDisplay(getProviderBalance(provider.id)) }}</span>
         <!-- Cookie 失效警告 -->
         <span
           v-if="getProviderCookieExpired(provider.id)"
           class="ml-1 text-amber-600 dark:text-amber-500"
           :title="getProviderCookieExpired(provider.id)?.message"
-        >签到 Cookie 已失效</span>
+        >{{ legacyT('签到 Cookie 已失效') }}</span>
         <!-- 签到状态显示 -->
         <span
           v-else-if="getProviderCheckin(provider.id) && getProviderCheckin(provider.id)?.success !== false"
           class="ml-1 text-muted-foreground"
           :title="getProviderCheckin(provider.id)?.message"
-        >已签到</span>
+        >{{ legacyT('已签到') }}</span>
         <span
           v-else-if="getProviderCheckin(provider.id)?.success === false"
           class="ml-1 text-destructive/70"
           :title="getProviderCheckin(provider.id)?.message"
-        >签到失败</span>
+        >{{ legacyT('签到失败') }}</span>
       </span>
       <!-- 余额查询失败时显示错误 -->
       <span
@@ -170,19 +170,19 @@
         v-else-if="provider.billing_type === 'monthly_quota'"
         class="text-muted-foreground"
       >
-        配额 <span
+        {{ legacyT('配额') }} <span
           class="font-semibold"
           :class="getQuotaUsedColorClass(provider)"
         >${{ (provider.monthly_used_usd ?? 0).toFixed(2) }}</span>/<span class="font-medium">${{ (provider.monthly_quota_usd ?? 0).toFixed(2) }}</span>
       </span>
       <span class="text-muted-foreground">
-        端点 {{ provider.active_endpoints }}/{{ provider.total_endpoints }}
+        {{ legacyT('端点') }} {{ provider.active_endpoints }}/{{ provider.total_endpoints }}
       </span>
       <span class="text-muted-foreground">
         {{ getCredentialLabel(provider) }} {{ provider.active_keys }}/{{ provider.total_keys }}
       </span>
       <span class="text-muted-foreground">
-        模型 {{ provider.active_models }}/{{ provider.total_models }}
+        {{ legacyT('模型') }} {{ provider.active_models }}/{{ provider.total_models }}
       </span>
     </div>
 
@@ -195,7 +195,7 @@
         v-for="endpoint in sortEndpoints(provider.endpoint_health_details)"
         :key="endpoint.api_format"
         class="flex flex-col gap-1.5"
-        :title="getEndpointTooltip(endpoint)"
+        :title="getEndpointTooltip(endpoint, locale)"
       >
         <!-- 上排：缩写 + 百分比 -->
         <div class="flex items-center justify-between text-[10px] leading-none">
@@ -240,6 +240,7 @@ import { type ProviderWithEndpointsSummary, formatApiFormatShort } from '@/api/e
 import { formatBillingType } from '@/utils/format'
 import { sortEndpoints, isEndpointAvailable, getEndpointDotColor, getEndpointTooltip } from '@/features/providers/composables/useEndpointStatus'
 import { isKeyManagedProviderType } from '../utils/providerTypeUtils'
+import { useI18n } from '@/i18n'
 
 const props = defineProps<{
   provider: ProviderWithEndpointsSummary
@@ -270,6 +271,7 @@ const vAutoFocus = {
 }
 
 const localDescriptionValue = ref('')
+const { legacyT, locale } = useI18n()
 
 watch(
   () => props.editingDescriptionId,
@@ -304,7 +306,7 @@ function handleDescriptionKeydown(event: KeyboardEvent) {
   }
 }
 
-function getCredentialLabel(provider: ProviderWithEndpointsSummary): '账号' | '密钥' {
-  return isKeyManagedProviderType(provider.provider_type) ? '密钥' : '账号'
+function getCredentialLabel(provider: ProviderWithEndpointsSummary): string {
+  return legacyT(isKeyManagedProviderType(provider.provider_type) ? '密钥' : '账号')
 }
 </script>

frontend/src/features/providers/components/ProviderTableHeader.vue

@@ -3,7 +3,7 @@
     <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-3 sm:gap-4">
       <!-- 左侧：标题 -->
       <h3 class="text-sm sm:text-base font-semibold text-foreground shrink-0">
-        提供商管理
+        {{ legacyT('提供商管理') }}
       </h3>
 
       <!-- 右侧：操作区 -->
@@ -15,7 +15,7 @@
             id="provider-search"
             :model-value="searchQuery"
             type="text"
-            placeholder="搜索提供商..."
+            :placeholder="legacyT('搜索提供商...')"
             class="w-32 sm:w-44 pl-8 pr-3 h-8 text-sm bg-muted/30 border-border/50 focus:border-primary/50 transition-colors"
             @update:model-value="$emit('update:searchQuery', $event)"
           />
@@ -28,7 +28,7 @@
             @update:model-value="$emit('update:filterStatus', $event)"
           >
             <SelectTrigger class="w-20 sm:w-28 h-8 text-xs border-border/60">
-              <SelectValue placeholder="全部状态" />
+              <SelectValue :placeholder="legacyT('全部状态')" />
             </SelectTrigger>
             <SelectContent>
               <SelectItem
@@ -36,7 +36,7 @@
                 :key="status.value"
                 :value="status.value"
               >
-                {{ status.label }}
+                {{ legacyT(status.label) }}
               </SelectItem>
             </SelectContent>
           </Select>
@@ -49,7 +49,7 @@
             @update:model-value="$emit('update:filterApiFormat', $event)"
           >
             <SelectTrigger class="w-20 sm:w-28 h-8 text-xs border-border/60">
-              <SelectValue placeholder="全部格式" />
+              <SelectValue :placeholder="legacyT('全部格式')" />
             </SelectTrigger>
             <SelectContent>
               <SelectItem
@@ -57,7 +57,7 @@
                 :key="fmt.value"
                 :value="fmt.value"
               >
-                {{ fmt.label }}
+                {{ legacyT(fmt.label) }}
               </SelectItem>
             </SelectContent>
           </Select>
@@ -70,7 +70,7 @@
             @update:model-value="$emit('update:filterModel', $event)"
           >
             <SelectTrigger class="w-20 sm:w-36 h-8 text-xs border-border/60">
-              <SelectValue placeholder="全部模型" />
+              <SelectValue :placeholder="legacyT('全部模型')" />
             </SelectTrigger>
             <SelectContent>
               <SelectItem
@@ -78,7 +78,7 @@
                 :key="model.value"
                 :value="model.value"
               >
-                {{ model.label }}
+                {{ legacyT(model.label) }}
               </SelectItem>
             </SelectContent>
           </Select>
@@ -90,7 +90,7 @@
           variant="ghost"
           size="icon"
           class="h-8 w-8"
-          title="重置筛选"
+          :title="legacyT('重置筛选')"
           @click="$emit('resetFilters')"
         >
           <FilterX class="w-3.5 h-3.5" />
@@ -101,10 +101,10 @@
         <!-- 调度策略 -->
         <button
           class="group inline-flex items-center gap-1.5 px-2.5 h-8 rounded-md border border-border/50 bg-muted/20 hover:bg-muted/40 hover:border-primary/40 transition-all duration-200 text-xs"
-          title="点击调整调度策略"
+          :title="legacyT('点击调整调度策略')"
           @click="$emit('openPriorityDialog')"
         >
-          <span class="text-muted-foreground/80 hidden sm:inline">调度:</span>
+          <span class="text-muted-foreground/80 hidden sm:inline">{{ legacyT('调度:') }}</span>
           <span class="font-medium text-foreground/90">{{ priorityModeLabel }}</span>
           <ChevronDown class="w-3 h-3 text-muted-foreground/70 group-hover:text-foreground transition-colors" />
         </button>
@@ -116,7 +116,7 @@
           variant="ghost"
           size="icon"
           class="h-8 w-8"
-          title="批量处理提供商"
+          :title="legacyT('批量处理提供商')"
           :disabled="loading"
           @click="$emit('batchProcess')"
         >
@@ -126,7 +126,7 @@
           variant="ghost"
           size="icon"
           class="h-8 w-8"
-          title="新增提供商"
+          :title="legacyT('新增提供商')"
           @click="$emit('addProvider')"
         >
           <Plus class="w-3.5 h-3.5" />
@@ -151,6 +151,7 @@ import SelectContent from '@/components/ui/select-content.vue'
 import SelectItem from '@/components/ui/select-item.vue'
 import RefreshButton from '@/components/ui/refresh-button.vue'
 import type { FilterOption } from '@/features/providers/composables/useProviderFilters'
+import { useI18n } from '@/i18n'
 
 defineProps<{
   searchQuery: string
@@ -176,4 +177,6 @@ defineEmits<{
   'addProvider': []
   'refresh': []
 }>()
+
+const { legacyT } = useI18n()
 </script>

frontend/src/features/providers/components/ProviderTableRow.vue

@@ -31,19 +31,19 @@
             v-model="localDescriptionValue"
             v-auto-focus
             class="flex-1 min-w-0 text-xs px-1.5 py-0.5 rounded border border-border bg-background text-foreground focus:outline-none focus:ring-1 focus:ring-primary/50"
-            placeholder="输入备注..."
+            :placeholder="legacyT('输入备注...')"
             @keydown="handleDescriptionKeydown"
           >
           <button
             class="shrink-0 p-0.5 rounded hover:bg-muted text-primary"
-            title="保存"
+            :title="legacyT('保存')"
             @click="handleSave"
           >
             <Check class="w-3.5 h-3.5" />
           </button>
           <button
             class="shrink-0 p-0.5 rounded hover:bg-muted text-muted-foreground"
-            title="取消"
+            :title="legacyT('取消')"
             @click="handleCancel"
           >
             <X class="w-3.5 h-3.5" />
@@ -59,7 +59,7 @@
           v-else
           class="text-xs text-muted-foreground cursor-pointer hover:text-foreground/70 transition-colors"
           @click="handleStartEdit"
-        >添加备注</span>
+        >{{ legacyT('添加备注') }}</span>
       </div>
     </TableCell>
     <TableCell class="py-3.5">
@@ -79,7 +79,7 @@
     </TableCell>
     <TableCell class="py-3.5 text-center">
       <div class="inline-grid grid-cols-[1.75rem_1.75rem_1.75rem] gap-x-0.5 gap-y-0.5 text-xs text-left">
-        <span class="text-muted-foreground/70">端点:</span>
+        <span class="text-muted-foreground/70">{{ legacyT('端点:') }}</span>
         <span class="font-medium text-foreground/90 tabular-nums text-right">{{ provider.active_endpoints }}</span>
         <span class="text-muted-foreground/50 tabular-nums">/{{ provider.total_endpoints }}</span>
 
@@ -87,7 +87,7 @@
         <span class="font-medium text-foreground/90 tabular-nums text-right">{{ provider.active_keys }}</span>
         <span class="text-muted-foreground/50 tabular-nums">/{{ provider.total_keys }}</span>
 
-        <span class="text-muted-foreground/70">模型:</span>
+        <span class="text-muted-foreground/70">{{ legacyT('模型:') }}</span>
         <span class="font-medium text-foreground/90 tabular-nums text-right">{{ provider.active_models }}</span>
         <span class="text-muted-foreground/50 tabular-nums">/{{ provider.total_models }}</span>
       </div>
@@ -101,7 +101,7 @@
           v-for="endpoint in sortEndpoints(provider.endpoint_health_details)"
           :key="endpoint.api_format"
           class="flex flex-col gap-1.5"
-          :title="getEndpointTooltip(endpoint)"
+          :title="getEndpointTooltip(endpoint, locale)"
         >
           <!-- 上排：缩写 + 百分比 -->
           <div class="flex items-center justify-between text-[10px] leading-none">
@@ -126,14 +126,14 @@
       <span
         v-else
         class="text-xs text-muted-foreground/50"
-      >暂无端点</span>
+      >{{ legacyT('暂无端点') }}</span>
     </TableCell>
     <TableCell class="py-3.5 text-center">
       <Badge
         :variant="provider.is_active ? 'success' : 'secondary'"
         class="text-xs"
       >
-        {{ provider.is_active ? '活跃' : '停用' }}
+        {{ legacyT(provider.is_active ? '活跃' : '停用') }}
       </Badge>
     </TableCell>
     <TableCell
@@ -145,7 +145,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7 text-muted-foreground/70 hover:text-foreground"
-          title="查看详情"
+          :title="legacyT('查看详情')"
           @click="$emit('viewDetail', provider.id)"
         >
           <Eye class="h-3.5 w-3.5" />
@@ -154,7 +154,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7 text-muted-foreground/70 hover:text-foreground"
-          title="编辑提供商"
+          :title="legacyT('编辑提供商')"
           @click="$emit('editProvider', provider)"
         >
           <Edit class="h-3.5 w-3.5" />
@@ -163,7 +163,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7 text-muted-foreground/70 hover:text-foreground"
-          title="扩展操作配置"
+          :title="legacyT('扩展操作配置')"
           @click="$emit('openOpsConfig', provider)"
         >
           <KeyRound class="h-3.5 w-3.5" />
@@ -172,7 +172,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7 text-muted-foreground/70 hover:text-foreground"
-          :title="provider.is_active ? '停用提供商' : '启用提供商'"
+          :title="legacyT(provider.is_active ? '停用提供商' : '启用提供商')"
           @click="$emit('toggleStatus', provider)"
         >
           <Power class="h-3.5 w-3.5" />
@@ -181,7 +181,7 @@
           variant="ghost"
           size="icon"
           class="h-7 w-7 text-muted-foreground/70 hover:text-destructive"
-          title="删除提供商"
+          :title="legacyT('删除提供商')"
           @click="$emit('deleteProvider', provider)"
         >
           <Trash2 class="h-3.5 w-3.5" />
@@ -212,6 +212,7 @@ import ProviderBalanceCell from './ProviderBalanceCell.vue'
 import { type ProviderWithEndpointsSummary, formatApiFormatShort } from '@/api/endpoints'
 import { sortEndpoints, isEndpointAvailable, getEndpointDotColor, getEndpointTooltip } from '@/features/providers/composables/useEndpointStatus'
 import type { BalanceExtraItem } from '@/features/providers/auth-templates'
+import { useI18n } from '@/i18n'
 
 const props = defineProps<{
   provider: ProviderWithEndpointsSummary
@@ -247,6 +248,7 @@ const vAutoFocus = {
 }
 
 const localDescriptionValue = ref('')
+const { legacyT, locale } = useI18n()
 
 // 当进入编辑模式时，同步 props 的 description
 watch(
@@ -282,8 +284,8 @@ function handleDescriptionKeydown(event: KeyboardEvent) {
   }
 }
 
-function getCredentialLabel(provider: ProviderWithEndpointsSummary): '账号' | '密钥' {
+function getCredentialLabel(provider: ProviderWithEndpointsSummary): string {
   const providerType = String(provider.provider_type || '').trim().toLowerCase()
-  return providerType && providerType !== 'custom' ? '账号' : '密钥'
+  return legacyT(providerType && providerType !== 'custom' ? '账号' : '密钥')
 }
 </script>

frontend/src/features/providers/components/ProxyNodeSelect.vue

@@ -8,10 +8,10 @@
       <SelectTrigger :class="triggerClass">
         <SelectValue
           :placeholder="proxyNodesStore.loading
-            ? '加载节点列表中...'
+            ? legacyT('加载节点列表中...')
             : nodeOptions.length === 0
-              ? '暂无可用节点'
-              : '选择代理节点...'"
+              ? legacyT('暂无可用节点')
+              : legacyT('选择代理节点...')"
         />
       </SelectTrigger>
       <SelectContent>
@@ -37,6 +37,7 @@ import {
   SelectItem,
 } from '@/components/ui'
 import { useProxyNodesStore } from '@/stores/proxy-nodes'
+import { useI18n } from '@/i18n'
 import { formatRegion } from '@/utils/region'
 
 const props = defineProps<{
@@ -49,6 +50,7 @@ defineEmits<{
 }>()
 
 const proxyNodesStore = useProxyNodesStore()
+const { legacyT } = useI18n()
 
 /** 在线节点 + 保留当前已选节点（可能已离线） */
 const nodeOptions = computed(() => {