feat(emailing-domain): add LOG driver for local development (#21286)

## What

Adds a `LOG` driver to the emailing-domain feature, selected via a new
`EMAILING_DOMAIN_DRIVER` config variable (defaults to `AWS_SES`, so
production behavior is unchanged).

The LOG driver:
- resolves domains to `VERIFIED` instantly (no DNS / SES setup)
- logs each `sendEmail` and returns a synthetic `messageId` instead of
calling SES

It also dev-seeds a pre-verified domain per workspace
(`<workspaceId>.dev.twenty.local`) so the feature works out of the box.

## Why

The emailing-domain feature currently ships only the AWS SES driver, so
the verify → send flow can't be exercised locally (or in CI) without
real AWS credentials. This unblocks local development and review of
anything built on emailing domains.

## Usage

```
EMAILING_DOMAIN_DRIVER=LOG
```

The seeded `*.dev.twenty.local` domain is already verified; sends are
logged (`[log-driver] sendEmail ...`).

---------

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>

packages/twenty-client-sdk/src/metadata/generated/schema.graphql

@@ -1446,16 +1446,11 @@ type EmailingDomain {
   createdAt: DateTime!
   updatedAt: DateTime!
   domain: String!
-  driver: EmailingDomainDriver!
   status: EmailingDomainStatus!
   verificationRecords: [VerificationRecord!]
   verifiedAt: DateTime
 }
 
-enum EmailingDomainDriver {
-  AWS_SES
-}
-
 enum EmailingDomainStatus {
   PENDING
   VERIFIED
@@ -3226,7 +3221,7 @@ type Mutation {
   resetPageLayoutToDefault(id: String!): PageLayout!
   resetPageLayoutWidgetToDefault(id: String!): PageLayoutWidget!
   resetPageLayoutTabToDefault(id: String!): PageLayoutTab!
-  createEmailingDomain(domain: String!, driver: EmailingDomainDriver!): EmailingDomain!
+  createEmailingDomain(domain: String!): EmailingDomain!
   deleteEmailingDomain(id: String!): Boolean!
   verifyEmailingDomain(id: String!): EmailingDomain!
   sendEmailViaEmailingDomain(input: SendEmailViaDomainInput!): SendEmailViaDomainOutput!