fix(server): correct archive filters and deposit access

Parse archived class query flags without Boolean string coercion, register the refund approval permission, and grant dorm managers the deposit permission group.

apps/server/src/classes/dto/class.dto.ts

@@ -1,5 +1,5 @@
 import { IsOptional, IsString, IsNotEmpty, IsInt, IsArray, IsDateString, IsEnum, ArrayNotEmpty, ValidateNested } from 'class-validator';
-import { Type } from 'class-transformer';
+import { Type, Transform } from 'class-transformer';
 import { ClassType, ClassStatus, TeacherRoleType } from '../../entities';
 
 export class CreateClassDto {
@@ -98,7 +98,12 @@ export class QueryClassDto {
   keyword?: string;
 
   @IsOptional()
-  @Type(() => Boolean)
+  @Transform(({ value }) => {
+    if (typeof value === 'boolean') return value;
+    if (value === 'true' || value === '1') return true;
+    if (value === 'false' || value === '0') return false;
+    return value;
+  })
   isArchived?: boolean;
 }
 

apps/server/src/rbac/rbac.service.ts

@@ -35,6 +35,7 @@ const PRESET_PERMISSIONS: Array<{ code: string; name: string; group: string }> =
   { code: 'deposit:create', name: '新增押金', group: 'deposit' },
   { code: 'deposit:edit', name: '编辑押金', group: 'deposit' },
   { code: 'deposit:delete', name: '删除押金', group: 'deposit' },
+  { code: 'deposit:approve', name: '审批退款', group: 'deposit' },
   { code: 'classroom:view', name: '查看教室', group: 'classroom' },
   { code: 'classroom:create', name: '新增教室', group: 'classroom' },
   { code: 'classroom:edit', name: '编辑教室', group: 'classroom' },
@@ -147,7 +148,7 @@ const PRESET_ROLES: Array<{
     code: 'dorm_manager',
     description: '管理宿舍入住与宿舍信息',
     isSystem: true,
-    permissionGroups: ['student', 'room', 'occupancy', 'dashboard'],
+    permissionGroups: ['student', 'room', 'occupancy', 'deposit', 'dashboard'],
   },
   {
     name: '教务',