Add AI synopsis to new company domain signup emails

[shanerbaner82]

Summary

• When the first user registers with a non-consumer email domain, the queued NewCompanyDomainRegistered mail to accounts@nativephp.com now optionally includes a Synopsis: line (30–50 words) covering what the company does and who the person is.
• Synopsis generation runs inside the already-queued notification (toMail), so signup stays fast. It fetches https://{domain} (short timeout, HTML stripped to a text excerpt), then prompts an Anthropic Haiku agent via Laravel AI (CompanyDomainAnalyst).
• Soft-fail: HTTP/AI errors are logged as warnings and the basic domain/name/email/time email still sends without a synopsis. Consumer domains and non-first users remain skipped.

How it works

1. NotifyAccountsOfNewCompanyDomain unchanged (consumer skip + first-user-only).
2. Queued NewCompanyDomainRegistered::toMail() calls CompanyDomainSynopsisGenerator.
3. Generator fetches the company site excerpt → builds prompt (name/email/domain/excerpt) → CompanyDomainAnalyst::make()->prompt(...).
4. Agent instructions: only confident public facts; no invented URLs; plain 30–50 word paragraph.

Config / prod

• Published config/ai.php (laravel/ai). Anthropic key via ANTHROPIC_API_KEY.
• Added ANTHROPIC_API_KEY= to .env.example.
• Prod needs ANTHROPIC_API_KEY set (same as Bifrost). Without it, synopsis soft-fails and the basic email still goes out.
• Note: this app is on laravel/ai v0.1.5, so the agent uses #[Provider('anthropic')] (string). Bifrost’s newer SDK accepts Lab::Anthropic / HasProviderOptions for disabling thinking; that API is not available here yet.

Tests

• Extended NewCompanyDomainRegistrationTest: synopsis included on success (Http + AI faked); email still sent when AI throws; gmail still skipped; first/second user behavior unchanged.
• ./vendor/bin/phpunit --filter NewCompanyDomainRegistrationTest — 5 passed.

Test plan

• Confirm staging/prod has ANTHROPIC_API_KEY
• Register a fresh company-domain user and verify accounts@ mail includes Synopsis when the site/AI succeed
• Break AI key or block outbound HTTP and confirm the basic accounts email still arrives
• Confirm gmail / second user on same domain still do not notify

[shanerbaner82]

Closing — Shane wants this on Bifrost only, not nativephp.com.