Adds nullable user_profiles.signing_email — the address representing a user
in SIGNING contexts only (EOI developer/approver signer slot, in-CRM 'your
turn to sign' notification, 'awaiting my signature' hub tab). Never a login
credential; better-auth identity stays single-email. NULL → user signs as
their own login email.
Lets a person who logs in as e.g. abbie@ sign on behalf of a shared role
mailbox (sales@) without changing their login. Additive + backward-compatible:
every existing user (NULL override) is byte-for-byte unaffected.
- migration 0100 + drizzle column (nullable, no unique constraint)
- resolveCrmUser: signing_email ?? user.email
- listDocuments hub filter: match the caller's owned email SET (login +
override) for awaiting_me / awaiting_them (currentUserEmail -> currentUserEmails)
- ctx.user.signingEmail surfaced from the already-loaded profile (no extra query)
- updateUser persists/lowercases the override; '' clears it (edit-only)
- admin Edit-User form: optional 'Signing email' field
- TDD: validator unit test + 3 integration tests (resolver override+fallback,
updateUser persist/clear, hub awaiting_me matches override)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L2qc3xZTfif7N4Wq3QDa8X
Matt
9f5810e3df