Expands architecture constraints and SCOPE.md to reflect the three-actor
vocabulary (adm/agt/atm), two credential modes (static key + cert_command),
and ops-warden boundary. Adds directive wiki doc and two new workplans
(BRIDGE-WP-0004 directive alignment, WARDEN-WP-0001 ops-warden bootstrap).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
