优化: CR-08 i18n batch2全量(ProjectDetail5处+TaskDetail16key+AiChat3处+store error fallback 23处+useAiSend 3处)+@/i18n路径统一+vite别名

src/views/ProjectDetail.vue

@@ -9,7 +9,7 @@
       </div>
       <div class="header-actions">
         <button class="btn btn-ghost" @click="handleSync">{{ $t('projectDetail.sync') }}</button>
-        <button class="btn btn-ghost" type="button" @click="handleImportDir">导入目录</button>
+        <button class="btn btn-ghost" type="button" @click="handleImportDir">{{ $t('projectDetail.importDir') }}</button>
         <button class="btn btn-danger" @click="handleDelete">{{ $t('projectDetail.delete') }}</button>
         <button class="btn btn-primary" @click="showNewTaskModal = true">{{ $t('projectDetail.newTask') }}</button>
       </div>
@@ -198,7 +198,7 @@
                 :disabled="multiDecisions.length === 0"
                 @click="handleApprovalMulti"
               >
-                确认({{ multiDecisions.length }})
+                {{ $t('projectDetail.approvalConfirm', { count: multiDecisions.length }) }}
               </button>
             </template>
             <template v-else>
@@ -217,7 +217,7 @@
           </div>
         </div>
         <div class="modal-actions">
-          <button class="btn btn-ghost" @click="handleCancelApproval">取消</button>
+          <button class="btn btn-ghost" @click="handleCancelApproval">{{ $t('projectDetail.approvalCancel') }}</button>
           <button class="btn btn-ghost" @click="showApprovalDialog = false">{{ $t('projectDetail.approvalLater') }}</button>
         </div>
       </div>
@@ -383,25 +383,24 @@ async function relocateDir() {
 }
 
 // 导入历史项目(选已存在目录 → 后端创建实体+绑定+探测栈+读 README 首段一步完成)
-// 文案硬编码:projectDetail i18n 不在本次任务白名单,改用内联中文(避免引用不存在的 key)
 async function handleImportDir() {
   try {
     const selected = await open({ directory: true, multiple: false })
     if (!selected || Array.isArray(selected)) return
     const dir = selected as string
-    if (!await confirmDialog(`导入目录为新项目?\n${dir}\n\n将自动用目录名作项目名,探测技术栈,并读 README 首段填描述。`)) return
+    if (!await confirmDialog(t('projectDetail.importConfirm', { dir }))) return
     const record = await store.importProject({ path: dir })
     if (!record) {
       // store 已 toast 错误
       if (store.error) Message.error(store.error)
       return
     }
-    Message.success(`已导入项目「${record.name}」`)
+    Message.success(t('projectDetail.importSuccess', { name: record.name }))
     // 跳转到新导入项目的详情页
     router.push(`/projects/${record.id}`)
   } catch (e: any) {
     console.error('导入失败:', e)
-    Message.error(`导入失败: ${e?.toString() ?? '未知错误'}`)
+    Message.error(t('projectDetail.importFailed', { msg: e?.toString() ?? t('common.unknownError') }))
   }
 }