fix(i18n): complete tasks and documents translations for all 15 locales

Add missing tasks.statusArchived, archiveButton, archivedToast,
kanbanArchived, reminderNeedsDueDate and translate the documents
section from English placeholders into all supported languages.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/locales/zh.json

@@ -180,7 +180,12 @@
     "filterGroupPriority": "优先级",
     "filterGroupStatus": "状态",
     "swipedDoneToast": "已标记为完成。",
-    "swipedOpenToast": "已标记为未完成。"
+    "swipedOpenToast": "已标记为未完成。",
+    "statusArchived": "已归档",
+    "archiveButton": "归档任务",
+    "archivedToast": "任务已归档。",
+    "kanbanArchived": "已归档",
+    "reminderNeedsDueDate": "设置截止日期以启用任务提醒。"
   },
   "shopping": {
     "title": "购物",
@@ -903,38 +908,38 @@
     "title": "文档",
     "addButton": "添加文档",
     "searchPlaceholder": "搜索文档...",
-    "gridView": "Grid view",
-    "listView": "List view",
-    "viewToggle": "Document view",
+    "gridView": "网格视图",
+    "listView": "列表视图",
+    "viewToggle": "文档视图",
     "allCategories": "所有类别",
     "emptyTitle": "还没有文档",
     "emptyDescription": "上传家庭文档并控制每个文件的可见成员。",
     "newTitle": "新文档",
     "editTitle": "文档设置",
-    "nameLabel": "Name",
-    "descriptionLabel": "Description",
-    "categoryLabel": "Category",
-    "fileLabel": "File",
-    "fileHint": "PDF, images, text and Office files up to 5 MB.",
-    "visibilityLabel": "Visibility",
-    "statusLabel": "Status",
-    "allowedMembersLabel": "Allowed members",
-    "uploadAction": "Upload",
-    "downloadAction": "Download",
-    "editAction": "Settings",
-    "archiveAction": "Archive",
-    "restoreAction": "Restore",
-    "savedToast": "Document saved.",
-    "uploadedToast": "Document uploaded.",
-    "archivedToast": "Document archived.",
-    "restoredToast": "Document restored.",
-    "deletedToast": "Document deleted.",
-    "deleteConfirm": "Delete document \"{{name}}\"?",
-    "fileRequired": "Select a file to upload.",
-    "fileTooLarge": "File may be at most 5 MB.",
-    "fileReadError": "File could not be read.",
-    "statusActive": "Active",
-    "statusArchived": "Archived",
+    "nameLabel": "名称",
+    "descriptionLabel": "描述",
+    "categoryLabel": "类别",
+    "fileLabel": "文件",
+    "fileHint": "PDF、图片、文本和Office文件，最大5 MB。",
+    "visibilityLabel": "可见性",
+    "statusLabel": "状态",
+    "allowedMembersLabel": "允许的成员",
+    "uploadAction": "上传",
+    "downloadAction": "下载",
+    "editAction": "设置",
+    "archiveAction": "归档",
+    "restoreAction": "恢复",
+    "savedToast": "文档已保存。",
+    "uploadedToast": "文档已上传。",
+    "archivedToast": "文档已归档。",
+    "restoredToast": "文档已恢复。",
+    "deletedToast": "文档已删除。",
+    "deleteConfirm": "删除文档\"{{name}}\"？",
+    "fileRequired": "请选择要上传的文件。",
+    "fileTooLarge": "文件最大为5 MB。",
+    "fileReadError": "无法读取文件。",
+    "statusActive": "活跃",
+    "statusArchived": "已归档",
     "visibility": {
       "family": "整个家庭",
       "restricted": "选定成员",