TAP-12226 批量设置任务告警接收人

[feynmx]

Summary

• add batch task alarm receiver API and task-list bulk action
• add receiver selection dialog with overwrite warning and clear support
• refresh shared settings cache after system settings save

Validation

• git diff --check
• pnpm exec eslint packages/api/src/core/alarm.ts packages/business/src/views/task/BatchAlarmEmailDialog.vue packages/shared/src/settings.ts apps/daas/src/utils/settings.js
• pre-commit lint-staged eslint/check-i18n