refactor(rooms): remove dorm gender restrictions

apps/server/src/database/database-migrations.room-gender.spec.ts

@@ -0,0 +1,38 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { getDataSourceToken } from '@nestjs/typeorm';
+import { DatabaseMigrationsService } from './database-migrations.service';
+
+describe('DatabaseMigrationsService — room gender cleanup', () => {
+  it('drops the retired rooms.gender column', async () => {
+    const runner = {
+      connect: jest.fn(),
+      release: jest.fn(),
+      getTables: jest.fn().mockResolvedValue([{ name: 'rooms' }]),
+      getTable: jest.fn().mockResolvedValue({
+        name: 'rooms',
+        columns: [{ name: 'id' }, { name: 'gender' }],
+      }),
+      dropColumn: jest.fn().mockResolvedValue(undefined),
+    };
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        DatabaseMigrationsService,
+        {
+          provide: getDataSourceToken(),
+          useValue: {
+            options: { type: 'better-sqlite3' },
+            createQueryRunner: jest.fn().mockReturnValue(runner),
+          },
+        },
+      ],
+    }).compile();
+    const service = module.get(DatabaseMigrationsService) as DatabaseMigrationsService & {
+      removeUnusedRoomColumns(): Promise<void>;
+    };
+
+    await service.removeUnusedRoomColumns();
+
+    expect(runner.dropColumn).toHaveBeenCalledWith('rooms', 'gender');
+    expect(runner.release).toHaveBeenCalled();
+  });
+});