Two bugs in the marketing-site embed-URL rewrite, both surfaced by
testing through the actual invitation emails:
1. Developer invite linked to `…/sign/undefined/<token>`. document_signers
persists Documenso's normalized role, so the order-2 EOI developer
arrives as 'signer', which ROLE_TO_URL_SEGMENT didn't have — the lookup
returned undefined. Add a 'signer' → 'developer' alias and a 'cc'
fallback so an unknown role can never emit `/sign/undefined/`.
2. "Copy link" copied the bare Documenso URL, not the branded embed URL.
listDocumentSigners (feeds the EOI tab signers + Copy link) now runs
each signing_url through transformSigningUrl, so the copied link
matches what the invitation email sends. Send-invitation/automation
read the raw rows directly, so they're unaffected.
Regression tests pin 'signer' → /sign/developer and the unknown-role
fallback.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Matt
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