feat(i18n): add new i18n message files and update request config

- Add new i18n message files: audit, course-plans, files, leave, nav, practice, scheduling, student, users

- Update existing i18n messages: ai, attendance, common, diagnostic, elective, error-book, exam-homework, grades, lesson-preparation, school, settings

- Update i18n request config for new locale handling

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

@@ -131,8 +131,9 @@
       "description": "管理作业，查看提交率与批改进度。",
       "create": "创建作业",
       "empty": "暂无作业",
-      "emptyFiltered": "该班级还没有作业。",
+      "emptyFiltered": "没有匹配筛选条件的作业",
       "emptyDescription": "您还没有创建任何作业。",
+      "emptyFilteredDescription": "尝试清除筛选条件或调整关键词。",
       "clearFilters": "清除筛选",
       "filterByClass": "按班级筛选：{{className}}",
       "columns": {