-- BizMatch Phase 2 — module 6a: NDAs arrive from Dropbox Sign
--
-- dropbox_sign_id is the import anchor: UNIQUE, so the same signature request
-- can never be imported twice, and NULL for every round entered by hand.

ALTER TABLE nda
  ADD COLUMN dropbox_sign_id text UNIQUE,
  ADD COLUMN signer_name      text,
  -- A declined round keeps status SENT (it was never signed) but must be
  -- distinguishable from one that is merely still outstanding.
  ADD COLUMN declined         boolean NOT NULL DEFAULT false;