Merge origin/main into feat/external-2fa-codes. Resolve formatting
conflicts caused by biome rollout; preserve both feature streams:
PR's external 2FA token + signing-session 2FA proof additions plus
main's RateLimit/RecipientExpired/signingReminders/date-auto-insert.
In complete-document-with-token.ts, drop the duplicate early
field-fetching block introduced when main moved that logic later
with date auto-insert support; keep the EXTERNAL_TWO_FACTOR_AUTH
check using derivedRecipientActionAuth.
Migrate from @documenso/pdf-sign and @cantoo/pdf-lib to @libpdf/core
for all PDF manipulation and signing operations. This includes:
- New signing transports for Google Cloud KMS and local certificates
- Consolidated PDF operations using libpdf API
- Added TSA (timestamp authority) helper for digital signatures
- Removed deprecated flatten and insert utilities
- Updated tests to use new PDF library
The v9 packages are deprecated. This updates to v13 which includes
breaking API changes: optionsJSON wrapper for auth functions,
renamed properties (authenticator→credential), and base64 encoding
for credential IDs via isoBase64URL helper.
We were previously omitting cmaps meaning that
when signing documents with certain UTF-8 characters or CJK characters
they would appear as outlined squares in the pdf viewer despite the
actual pdf looking as expected with the characters displaying correctly.