feat(school,classes): 学校/年级/班级模块审计修复 — 权限校验 + i18n + 架构图同步

- 新增审计报告 docs/architecture/audit/school-grade-class-audit-report.md

- 修复 P0-4: teacher/classes 4 个页面补充 requirePermission 权限校验

- 修复 P0-5: 新增 school.json i18n 文件（zh-CN/en）并接入 schools-view 组件

- 同步架构图 004：补充 grade-management 死模块记录与 teacher/classes 权限修复说明

src/i18n/request.ts

@@ -37,6 +37,7 @@ export default getRequestConfig(async () => {
     diagnostic,
     attendance,
     elective,
+    school,
   ] = await Promise.all([
     import(`@/shared/i18n/messages/${locale}/common.json`),
     import(`@/shared/i18n/messages/${locale}/auth.json`),
@@ -55,6 +56,7 @@ export default getRequestConfig(async () => {
     import(`@/shared/i18n/messages/${locale}/diagnostic.json`),
     import(`@/shared/i18n/messages/${locale}/attendance.json`),
     import(`@/shared/i18n/messages/${locale}/elective.json`),
+    import(`@/shared/i18n/messages/${locale}/school.json`),
   ]);
 
   return {
@@ -77,6 +79,7 @@ export default getRequestConfig(async () => {
       diagnostic: diagnostic.default,
       attendance: attendance.default,
       elective: elective.default,
+      school: school.default,
     },
   };
 });