-- bill_approvals.vendor_name is misnamed — it actually stores the approver's
-- person name (e.g. board member name), not a vendor. Renaming for clarity.
-- RENAME COLUMN automatically rewrites references in dependent RLS policies,
-- triggers, and indexes.
ALTER TABLE public.bill_approvals RENAME COLUMN vendor_name TO approver_name;
COMMENT ON COLUMN public.bill_approvals.approver_name IS
  'Display name of the approver (typically a board_members.member_name). Previously named vendor_name.';
