nda improvements

.env.example

@@ -12,6 +12,8 @@ NDA_REMINDER_DAYS=14
 # Dropbox Sign: the NDA inbox routes answer 503 until this is set.
 # Keep the real key in .env only — .env is gitignored and the key is never logged.
 DROPBOX_SIGN_API_KEY=
+# Pending signature requests older than this are no longer polled by the sync
+SYNC_PENDING_MAX_AGE_DAYS=60
 # Where signed NDAs are filed (one directory per first letter of the last name)
 NDA_ROOT=/mnt/bizmatch-nas/AA Buyers NDA's/Buyers NDA's A-Z