Unauthorized actors no longer grab leases; controlled PATCH projects through DocGov so author_last_edited and audit survive, with idempotent retry on failure. Co-authored-by: Cursor <cursoragent@cursor.com>
Prevent fact-source writes ahead of ledger commit; projection failures return DOCUMENT_PROJECTION_FAILED while keeping the ledger authoritative. Co-authored-by: Cursor <cursoragent@cursor.com>