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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packages/common/graphql/src/graphql/admin/send-test-email.gql

@@ -1,4 +1,5 @@
 mutation sendTestEmail(
+  $name: String!
   $host: String!
   $port: Int!
   $sender: String!
@@ -8,6 +9,7 @@ mutation sendTestEmail(
 ) {
   sendTestEmail(
     config: {
+      name: $name
       host: $host
       port: $port
       sender: $sender

packages/common/graphql/src/graphql/index.ts

@@ -448,9 +448,9 @@ export const listUsersQuery = {
 export const sendTestEmailMutation = {
   id: 'sendTestEmailMutation' as const,
   op: 'sendTestEmail',
-  query: `mutation sendTestEmail($host: String!, $port: Int!, $sender: String!, $username: String!, $password: String!, $ignoreTLS: Boolean!) {
+  query: `mutation sendTestEmail($name: String!, $host: String!, $port: Int!, $sender: String!, $username: String!, $password: String!, $ignoreTLS: Boolean!) {
   sendTestEmail(
-    config: {host: $host, port: $port, sender: $sender, username: $username, password: $password, ignoreTLS: $ignoreTLS}
+    config: {name: $name, host: $host, port: $port, sender: $sender, username: $username, password: $password, ignoreTLS: $ignoreTLS}
   )
 }`,
 };

packages/common/graphql/src/schema.ts

@@ -4175,6 +4175,7 @@ export type ListUsersQuery = {
 };
 
 export type SendTestEmailMutationVariables = Exact<{
+  name: Scalars['String']['input'];
   host: Scalars['String']['input'];
   port: Scalars['Int']['input'];
   sender: Scalars['String']['input'];