Introduces the `person_hint` field to the `EmailIntakePayload`, allowing the system to resolve the actual customer when a rep forwards an email. The `findOrCreateCustomer` function now prioritizes `person_hint` over the sender's email, enabling a more accurate attribution of quotes. This change includes a case-insensitive substring match with a token-drop fallback for multi-token names, ensuring better matching against existing customer records.
Additionally, new unit tests have been added to validate this functionality, covering various scenarios including token-drop behavior and ensuring the correct customer is linked when a rep forwards an RFQ.
Co-Authored-By: Claude <noreply@anthropic.com>
