feat(shared,tests): add error boundaries, lib utils, i18n messages, and integration tests

shared:

- Add class-filter, error-state, route-error, section-error-boundary, widget-boundary components

- Add ui/alert component

- Add constants directory

- Add breached-password, export-utils, permission-bitmap, rate-limit, resolve-action-error, route-permissions, route-resolver, type-guards lib

- Add i18n messages (en, zh-CN) for invitation-codes, parent, questions, rbac

tests:

- Add integration tests for elective

- Add tests/setup/empty-stub

scripts:

- Add update-md.cjs, tmp_append_en.ps1, tmp_merge_en.ps1 utilities

src/shared/i18n/messages/zh-CN/exam-homework.json

@@ -120,7 +120,10 @@
     },
     "error": {
       "notFound": "考试不存在",
-      "loadFailed": "加载考试失败"
+      "loadFailed": "加载考试失败",
+      "boundaryTitle": "考试数据加载失败",
+      "boundaryDescription": "该区块数据加载时发生错误，请重试。",
+      "retry": "重试"
     },
     "analytics": {
       "title": "考试分析",
@@ -149,6 +152,59 @@
       "noData": "暂无分析数据，需等待学生提交并批改后生成",
       "viewAnalytics": "查看分析"
     },
+    "build": {
+      "title": "组卷",
+      "description": "为考试组装题目。",
+      "examStructure": "试卷结构",
+      "questionBank": "题库",
+      "preview": "预览",
+      "totalScore": "总分",
+      "saveDraft": "保存草稿",
+      "publish": "发布",
+      "richEditor": "富文本编辑器",
+      "richEditorHint": "切换到富文本编辑器",
+      "loaded": "已加载",
+      "startHint": "从右侧面板添加题目开始",
+      "itemsInStructure": "结构中有 {{count}} 项",
+      "saveSuccess": "考试草稿已保存",
+      "saveFailed": "保存失败",
+      "publishSuccess": "考试已发布",
+      "publishFailed": "发布失败",
+      "loadQuestionsFailed": "加载题目失败",
+      "newGroup": "新分组",
+      "newSection": "新分卷",
+      "score": "分值",
+      "sectionTitlePlaceholder": "分卷标题（如：第Ⅰ卷）",
+      "groupTitlePlaceholder": "分组标题",
+      "pts": "分",
+      "dragItemsHere": "拖拽题目到此处",
+      "addGroup": "+ 添加分组",
+      "addSection": "+ 添加分卷",
+      "section": "分卷",
+      "group": "分组",
+      "question": "题目",
+      "questionContent": "题目内容",
+      "noQuestionsFound": "未找到匹配筛选条件的题目。",
+      "noContentPreview": "无内容预览",
+      "loading": "加载中...",
+      "loadMore": "加载更多",
+      "aiVariant": "AI 变体",
+      "noQuestionsSelected": "尚未选择题目。从题库添加题目或创建分组。",
+      "createGroup": "创建分组",
+      "createSection": "创建分卷",
+      "dragGroupsHere": "拖拽分组或题目到此处",
+      "dragQuestionsHere": "拖拽题目到此处或从题库添加",
+      "untitledGroup": "未命名分组",
+      "previewSubject": "科目",
+      "previewGrade": "年级",
+      "previewTime": "时间",
+      "previewTotal": "总分",
+      "previewClass": "班级",
+      "previewName": "姓名",
+      "previewNo": "学号",
+      "emptyExamPaper": "空试卷",
+      "minutes": "分钟"
+    },
     "richEditor": {
       "title": "富文本组卷",
       "description": "粘贴试卷文本,使用工具栏标记题目/分组/填空/加点字,右侧实时预览",
@@ -201,6 +257,167 @@
         "essay": "作文题",
         "text": "文本题"
       }
+    },
+    "preview": {
+      "selectQuestionHint": "请选择左侧题目后进行编辑",
+      "editorTitle": "题目编辑",
+      "editorDescription": "直接修改或通过 AI 指令重写当前题目",
+      "stem": "题干",
+      "aiRewriteInstruction": "AI 重写指令",
+      "aiRewritePlaceholder": "例如：把这题改成更难、增加一个干扰项、保持总分不变。",
+      "aiRewriteButton": "AI 重写当前题目",
+      "rawModelOutput": "模型原始输出"
+    },
+    "subQuestions": {
+      "title": "子题",
+      "add": "新增子题",
+      "contentPlaceholder": "子题内容",
+      "answerPlaceholder": "参考答案",
+      "scorePlaceholder": "分值",
+      "empty": "当前题目没有子题"
+    },
+    "richForm": {
+      "sectionLabel": "分卷",
+      "partLabel": "部分",
+      "groupLabel": "大题",
+      "questionCountSummary": "(共 {{count}} 题,{{score}} 分)",
+      "typeSingleChoice": "单选",
+      "typeMultipleChoice": "多选",
+      "typeJudgment": "判断",
+      "typeComposite": "复合",
+      "typeShortAnswer": "简答",
+      "scoreUnit": "分",
+      "emptyPreview": "暂无题目,请在左侧编辑器中添加",
+      "missingExamId": "缺少试卷 ID",
+      "backToBuild": "返回组卷"
+    },
+    "editor": {
+      "loading": "编辑器加载中...",
+      "contentPlaceholder": "在此粘贴或输入试卷内容,选中文本可标记为题目/分组/加点字/填空..."
+    },
+    "selectionToolbar": {
+      "ariaLabel": "选区标记工具栏",
+      "sectionLabel": "分卷",
+      "groupLabel": "大题",
+      "singleChoice": "单选",
+      "blankShortAnswer": "填空/简答",
+      "composite": "复合",
+      "image": "图片",
+      "defaultGroupTitle": "一、选择题",
+      "defaultSectionTitle": "第Ⅰ卷 选择题"
+    },
+    "previewHook": {
+      "taskInterrupted": "页面刷新后任务已中断，请重新生成",
+      "untitledExam": "未命名试卷",
+      "queuedSuccess": "已加入后台队列，可继续编辑页面",
+      "backgroundComplete": "后台生成完成：{{title}}",
+      "backgroundFailed": "后台生成失败：{{title}}",
+      "selectQuestionFirst": "请先选择一个题目",
+      "questionNotFound": "未找到选中的题目",
+      "enterRewriteInstruction": "请输入重写指令",
+      "aiRewriteFailed": "AI 重写失败",
+      "aiRewriteSuccess": "题目已按指令重写",
+      "generatePreviewFailed": "生成预览失败",
+      "pasteSourceFirst": "请先粘贴试卷文本"
+    },
+    "paperPreview": {
+      "scoreWithUnit": "({{score}}分)"
+    },
+    "actionMessages": {
+      "enterRewriteInstruction": "请输入重写指令",
+      "noSelectedQuestion": "未选择题目数据",
+      "questionFormatInvalid": "选中题目格式无效",
+      "questionsDataInvalid": "题目数据格式无效",
+      "structureDataInvalid": "试卷结构数据格式无效",
+      "dbCreateFailed": "数据库错误：创建考试失败",
+      "createdSuccess": "考试创建成功",
+      "analyzeFirst": "请先分析预览后再创建",
+      "pasteSourceFirst": "请先粘贴完整试卷文本",
+      "aiQuestionFormatInvalid": "AI 题目格式无效",
+      "invalidUpdateData": "更新数据无效",
+      "onlyOwnUpdate": "只能更新自己创建的考试",
+      "dbUpdateFailed": "数据库错误：更新考试失败",
+      "updated": "考试已更新",
+      "invalidDeleteData": "删除数据无效",
+      "onlyOwnDelete": "只能删除自己创建的考试",
+      "dbDeleteFailed": "数据库错误：删除考试失败",
+      "deleted": "考试已删除",
+      "invalidDuplicateData": "复制数据无效",
+      "notFound": "考试不存在",
+      "dbDuplicateFailed": "数据库错误：复制考试失败",
+      "duplicated": "考试已复制",
+      "loadPreviewFailed": "加载考试预览失败",
+      "loadSubjectsFailed": "加载科目失败",
+      "loadGradesFailed": "加载年级失败",
+      "invalidGradeId": "年级 ID 无效",
+      "titleRequired": "请填写试卷标题",
+      "contentRequired": "试卷内容不能为空",
+      "contentInvalid": "试卷内容格式无效",
+      "contentParseFailed": "试卷内容解析失败",
+      "draftCreated": "试卷草稿已创建",
+      "examUpdated": "试卷已更新",
+      "sourceTextRequired": "试卷文本不能为空",
+      "autoMarkCompleted": "AI 自动标记完成",
+      "noQuestionText": "(无题目文本)"
+    },
+    "card": {
+      "level": "难度 {{level}}",
+      "minutes": "{{count}} 分钟",
+      "points": "{{count}} 分",
+      "questions": "{{count}} 题"
+    },
+    "viewer": {
+      "section": "分卷",
+      "group": "大题",
+      "score": "分值",
+      "scoreLabel": "分值：{{score}}",
+      "noQuestions": "暂无题目",
+      "unknown": "未知"
+    },
+    "previewDialog": {
+      "section": "分卷",
+      "title": "试卷预览",
+      "generating": "生成预览中...",
+      "fullPreview": "完整试卷预览",
+      "summary": "{{count}} 题 · {{subject}} · {{grade}} · {{minutes}} 分钟 · {{total}} 分",
+      "noPreview": "暂无预览内容",
+      "confirmCreate": "确认并创建",
+      "untitledQuestion": "未命名题目",
+      "untitledSubQuestion": "未命名子题",
+      "scoreUnit": "分"
+    },
+    "questionOptions": {
+      "label": "选项",
+      "addOption": "新增选项",
+      "correct": "正确",
+      "markCorrectAria": "标记选项 {{id}} 为正确答案",
+      "deleteOptionAria": "删除选项"
+    },
+    "editorExtensions": {
+      "blank": {
+        "ariaLabel": "填空"
+      },
+      "group": {
+        "titlePlaceholder": "大题标题(如:一、选择题)",
+        "instructionPlaceholder": "说明(如:每小题3分,共24分)—— 可留空,总分自动统计",
+        "statsSummary": "共 {{count}} 题 · {{score}} 分"
+      },
+      "question": {
+        "typeSingleChoice": "单选",
+        "typeMultipleChoice": "多选",
+        "typeJudgment": "判断",
+        "typeText": "填空/简答",
+        "typeComposite": "复合",
+        "scoreUnit": "分"
+      },
+      "section": {
+        "titlePlaceholder": "分卷标题(如:第Ⅰ卷 选择题)",
+        "levelTitle": "层级",
+        "levelVolume": "卷",
+        "levelPart": "部分",
+        "levelSubVolume": "分卷",
+        "statsSummary": "共 {{count}} 题 · {{score}} 分"
+      }
     }
   },
   "homework": {
@@ -255,7 +472,19 @@
       "titleRequired": "请输入标题",
       "selectClassRequired": "请选择班级",
       "createSuccess": "作业已创建",
-      "createFailed": "创建失败"
+      "createFailed": "创建失败",
+      "createDescription": "快速发布文本作业或从考试派生。",
+      "noClassesAvailable": "暂无可用班级",
+      "noClassesDescription": "请先创建班级，然后向该班级发布作业。",
+      "goToClasses": "前往班级",
+      "error": {
+        "invalidDate": "日期格式无效",
+        "titleRequired": "请输入标题",
+        "dueAfterAvailable": "截止时间必须晚于可用时间",
+        "lateDueAfterDue": "迟交截止时间必须晚于正常截止时间",
+        "lateDueRequired": "允许迟交时必须设置迟交截止时间",
+        "invalidForm": "表单数据无效"
+      }
     },
     "take": {
       "questions": "题目",
@@ -454,10 +683,101 @@
       "notAvailableYet": "作业尚未开放",
       "noAttemptsLeft": "尝试次数已用完",
       "assignmentNotFound": "作业不存在",
-      "assignmentNotAvailable": "作业不可用"
+      "assignmentNotAvailable": "作业不可用",
+      "loadFailed": "加载失败，请稍后重试",
+      "scanNotFound": "扫描图不存在或无权访问"
+    },
+    "filters": {
+      "searchPlaceholder": "搜索作业...",
+      "status": "状态",
+      "allStatus": "全部状态",
+      "statusPending": "待提交",
+      "statusSubmitted": "已提交",
+      "statusGraded": "已批改"
+    },
+    "analytics": {
+      "examContent": "考试内容",
+      "questionPreview": "题目预览",
+      "errorAnalysis": "错误分析",
+      "errorRateOverview": "错误率概览",
+      "errorRateAriaLabel": "错误率 {{rate}}%",
+      "question": "题目",
+      "errors": "错误数",
+      "errorRateLabel": "错误率",
+      "wrongAnswersWithCount": "错答 ({{count}})",
+      "wrongAnswers": "错答",
+      "noWrongAnswers": "暂无错答记录。",
+      "studentAnswer": "学生答案",
+      "studentCount": "{{count}} 名学生",
+      "notAnswered": "未作答",
+      "selectQuestionHint": "请从左侧选择题目",
+      "selectQuestionHintDesc": "查看错误分析",
+      "noGradedSubmissions": "暂无已批改的提交。"
+    },
+    "scanViewer": {
+      "noImages": "该学生未上传答题图片",
+      "noImagesHint": "学生可在答题页拍摄上传纸质答案",
+      "zoomOut": "缩小",
+      "zoomIn": "放大",
+      "rotate": "旋转",
+      "fullscreen": "全屏",
+      "pageIndicator": "第 {{current}} / {{total}} 页",
+      "answerImageAlt": "答题图 第{{page}}页",
+      "thumbnailAlt": "缩略图 {{page}}"
+    },
+    "submissions": {
+      "title": "作业提交",
+      "description": "按作业查看提交与批改进度。",
+      "emptyDescription": "还没有可批改的作业。",
+      "quickAssignment": "快速作业",
+      "columns": {
+        "assignment": "作业"
+      }
+    },
+    "detail": {
+      "viewSubmissions": "查看提交",
+      "dueLabel": "截止时间",
+      "noDueDate": "无截止时间",
+      "submissionsLabel": "提交数",
+      "performanceAnalytics": "成绩分析",
+      "assignmentContent": "作业内容"
+    },
+    "excellent": {
+      "title": "优秀作业展示",
+      "description": "本作业中得分率达到 {{minPercentage}}% 及以上的优秀样例。",
+      "empty": "暂无符合条件的优秀作业。",
+      "emptyHint": "完成批改后将自动汇总展示。",
+      "loading": "加载优秀作业...",
+      "loadFailed": "加载失败",
+      "retry": "重试",
+      "rank": "第 {{rank}} 名",
+      "scoreLabel": "得分",
+      "scoreValue": "{{score}} / {{max}}",
+      "percentage": "{{value}}%",
+      "lateTag": "迟交",
+      "viewDetail": "查看详情",
+      "submittedAt": "提交于 {{date}}",
+      "studentAnon": "同学"
+    },
+    "parentExam": {
+      "examsTaken": "已参加考试",
+      "averageScore": "平均分",
+      "bestScore": "最高分",
+      "examResults": "{{name}} 的考试成绩",
+      "examResultsDescription": "近期考试分数与表现趋势",
+      "noResults": "暂无考试成绩",
+      "noResultsHint": "考试成绩将在批改完成后显示。",
+      "pass": "及格",
+      "belowPass": "不及格",
+      "viewGrades": "查看成绩详情"
     }
   },
   "proctoring": {
+    "page": {
+      "noPermission": "您没有监考权限。",
+      "title": "考试监考",
+      "description": "监控考试期间的学生活动。"
+    },
     "mode": {
       "title": "考试模式",
       "description": "选择考试模式并配置相关选项。监考模式会启用防作弊监控。",