fix(server): mail test & retry (#15044)

#### PR Dependency Tree


* **PR #15044** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

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## Summary by CodeRabbit

* **Bug Fixes**
* Stop sending notifications to disabled users; skip member invites when
workspace names contain URLs/domains
* Improve mail retry handling (per-recipient exhaustion, expiry, and
cache cleanup)
  * Make many email headers/lead lines more generic and consistent
  * Fail-safe workspace content parsing to avoid crashes

* **New Features**
* 24-hour signup protection for sharing, invites, and invite-link
creation
  * Job-queue: remove jobs by payload predicate

* **Tests**
* Expanded tests for mail jobs, SMTP hostname handling, payment
checkout, job-queue removal, and abuse-detection utilities
  * Updated test fixtures to set createdAt timestamps for new users

* **Chores**
  * Added required name input for test-email mutation
  * Database flush retry with deadlock detection/backoff

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tests/kit/src/utils/cloud.ts

@@ -116,6 +116,7 @@ export async function createRandomUser(): Promise<{
       data: {
         ...user,
         emailVerifiedAt: new Date(),
+        createdAt: new Date(Date.now() - 25 * 60 * 60 * 1000),
         password: await hash(user.password),
         features: {
           create: {