## Summary
- route drip mailables through `Álvaro and Víctor <hi@whisper.money>`
and send the rest from `Whisper Money <no-reply@whisper.money>`
- remove legacy per-mailable `Victor` sender overrides so non-drip mail
falls back to the default sender consistently
- add focused sender coverage for drip, non-drip, and verification mail
paths
## Testing
- `php artisan test --compact tests/Feature/MailSenderTest.php
tests/Feature/Jobs/Drip/SendWelcomeEmailJobTest.php`
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