fix(n+1): 批量查询替代循环单查

- IsAdminBootstrapRequired: userRepo.GetByID 循环 → GetByIDs 批量
- AssignRoles: roleRepo.GetByID 循环 → GetByIDs 批量
- 在 userRepositoryInterface 补充 GetByIDs 方法签名

frontend/admin/scripts/playwright-e2e-scenarios.mjs

@@ -0,0 +1,43 @@
+export const BASE_SCENARIO_NAMES = [
+  'public-registration',
+  'email-activation',
+  'password-reset',
+  'login-surface',
+  'auth-workflow',
+  'responsive-login',
+  'desktop-mobile-navigation',
+  'user-management-crud',
+  'user-management-batch',
+  'role-management-crud',
+  'permissions-management-crud',
+  'device-management',
+  'login-logs',
+  'operation-logs',
+  'webhook-management',
+  'import-export',
+  'profile-management',
+  'profile-and-security',
+  'settings',
+  'dashboard-stats',
+]
+
+export function parseSelectedScenarioNames(rawScenarioNames = '') {
+  return new Set(
+    String(rawScenarioNames ?? '')
+      .split(',')
+      .map((name) => name.trim())
+      .filter(Boolean),
+  )
+}
+
+export function selectScenarioNames({ requestedScenarioNames, expectAdminBootstrap }) {
+  const scenarioNames = expectAdminBootstrap
+    ? ['admin-bootstrap', ...BASE_SCENARIO_NAMES]
+    : [...BASE_SCENARIO_NAMES]
+
+  if (!requestedScenarioNames || requestedScenarioNames.size === 0) {
+    return scenarioNames
+  }
+
+  return scenarioNames.filter((name) => name === 'admin-bootstrap' || requestedScenarioNames.has(name))
+}