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/shared/i18n/messages/en/school.json

@@ -0,0 +1,163 @@
+{
+  "schools": {
+    "title": "School Management",
+    "description": "Manage schools across multiple campuses.",
+    "new": "New school",
+    "all": "All schools",
+    "empty": {
+      "title": "No schools",
+      "description": "Create your first school to get started."
+    },
+    "column": {
+      "name": "Name",
+      "code": "Code",
+      "updated": "Updated",
+      "actions": "Actions"
+    },
+    "form": {
+      "createTitle": "New school",
+      "editTitle": "Edit school",
+      "name": "Name",
+      "namePlaceholder": "e.g. First Primary School",
+      "code": "Code",
+      "codePlaceholder": "Optional",
+      "cancel": "Cancel",
+      "create": "Create",
+      "save": "Save"
+    },
+    "delete": {
+      "title": "Delete school",
+      "description": "This will permanently delete {name} and its grades.",
+      "cancel": "Cancel",
+      "confirm": "Delete"
+    },
+    "actions": {
+      "edit": "Edit",
+      "delete": "Delete"
+    }
+  },
+  "grades": {
+    "title": "Grade Management",
+    "description": "Manage grades and assign grade heads.",
+    "new": "New grade",
+    "all": "All grades",
+    "empty": {
+      "title": "No grades",
+      "description": "Create your first grade to get started."
+    },
+    "column": {
+      "school": "School",
+      "grade": "Grade",
+      "order": "Order",
+      "gradeHead": "Grade Head",
+      "teachingHead": "Teaching Head",
+      "updated": "Updated",
+      "actions": "Actions"
+    },
+    "form": {
+      "createTitle": "New grade",
+      "editTitle": "Edit grade",
+      "school": "School",
+      "schoolPlaceholder": "Select school",
+      "name": "Grade name",
+      "namePlaceholder": "e.g. Grade 1",
+      "order": "Order",
+      "gradeHead": "Grade Head",
+      "gradeHeadPlaceholder": "Select grade head",
+      "teachingHead": "Teaching Head",
+      "teachingHeadPlaceholder": "Select teaching head",
+      "cancel": "Cancel",
+      "create": "Create",
+      "save": "Save"
+    },
+    "delete": {
+      "title": "Delete grade",
+      "description": "Are you sure you want to delete {name}? This action cannot be undone.",
+      "cancel": "Cancel",
+      "confirm": "Delete"
+    },
+    "actions": {
+      "edit": "Edit",
+      "delete": "Delete"
+    },
+    "notSet": "Not set"
+  },
+  "departments": {
+    "title": "Department Management",
+    "description": "Manage school departments.",
+    "new": "New department",
+    "all": "All departments",
+    "empty": {
+      "title": "No departments",
+      "description": "Create your first department to get started."
+    },
+    "column": {
+      "name": "Name",
+      "description": "Description",
+      "updated": "Updated",
+      "actions": "Actions"
+    },
+    "form": {
+      "createTitle": "New department",
+      "editTitle": "Edit department",
+      "name": "Name",
+      "namePlaceholder": "e.g. Chinese Teaching Group",
+      "description": "Description",
+      "descriptionPlaceholder": "Optional",
+      "cancel": "Cancel",
+      "create": "Create",
+      "save": "Save"
+    },
+    "delete": {
+      "title": "Delete department",
+      "description": "Are you sure you want to delete {name}? This action cannot be undone.",
+      "cancel": "Cancel",
+      "confirm": "Delete"
+    },
+    "actions": {
+      "edit": "Edit",
+      "delete": "Delete"
+    }
+  },
+  "academicYear": {
+    "title": "Academic Year Management",
+    "description": "Manage academic year periods.",
+    "new": "New academic year",
+    "all": "All academic years",
+    "active": "Active",
+    "empty": {
+      "title": "No academic years",
+      "description": "Create your first academic year to get started."
+    },
+    "column": {
+      "name": "Name",
+      "startDate": "Start date",
+      "endDate": "End date",
+      "status": "Status",
+      "updated": "Updated",
+      "actions": "Actions"
+    },
+    "form": {
+      "createTitle": "New academic year",
+      "editTitle": "Edit academic year",
+      "name": "Name",
+      "namePlaceholder": "e.g. 2025-2026",
+      "startDate": "Start date",
+      "endDate": "End date",
+      "isActive": "Set as active year",
+      "cancel": "Cancel",
+      "create": "Create",
+      "save": "Save"
+    },
+    "delete": {
+      "title": "Delete academic year",
+      "description": "Are you sure you want to delete {name}? This action cannot be undone.",
+      "cancel": "Cancel",
+      "confirm": "Delete"
+    },
+    "actions": {
+      "edit": "Edit",
+      "delete": "Delete"
+    }
+  }
+}