新增: 灵感归档箱与任务归档动线

- ideasStore/taskStore: archiveIdea/archiveTask IPC 封装(本地移除/本地更新,对齐 delete 语义)
- project.ts 组合 store 显式透传 archiveIdea/archiveTask
- Ideas.vue: 筛选栏归档箱 Tab(独立数据源 ideaApi.listArchived,主查询不受扰);archiveCurrentIdea 处理器(归档确认+归档箱内取消归档自动清选中);IdeaDetail 传 in-archive-box prop
- IdeaDetail.vue: inArchiveBox prop + archive emit;操作区归档/取消归档按钮,归档箱模式隐藏删除(防误删归档记忆)
- i18n zh-CN/en ideas 补 filterArchived/archiveBoxEmpty/quickArchive/quickUnarchive/confirmArchive/toast 键(前批遗留)
验收: vue-tsc --noEmit EXIT 0

src/i18n/zh-CN/ideas.ts

@@ -28,6 +28,7 @@ export default {
       createFailed: '创建灵感失败',
       deleteFailed: '删除灵感失败',
       relateFailed: '更新关联关系失败',
+      archiveFailed: '归档操作失败',
     },
 
     // 操作反馈 toast(WK-16/18:成功/失败轻提示,对齐 Knowledge.createdToast)
@@ -147,6 +148,14 @@ export default {
     // ⑥ 状态切换确认(终态 promoted/rejected/archived 或离开 approved 失去立项入口)
     confirmStatus: '将灵感「{title}」状态从 {from} 改为 {to}?',
     promoteFailed: '立项失败',
+    // 归档功能 P1(灵感归档箱)
+    filterArchived: '📦 归档箱',
+    archiveBoxEmpty: '暂无归档灵感',
+    quickArchive: '📦 归档到归档箱',
+    quickUnarchive: '📤 取消归档',
+    confirmArchive: '归档灵感「{title}」?归档后移出主视图,可在归档箱查看。',
+    archivedToast: '已归档',
+    unarchivedToast: '已取消归档',
     evalFailed: '评估失败',
   },
 }