Run the cutover evidence guard test and assert the PostgreSQL README…

ddiff --git a/test/cutover-evidence.test.js b/test/cutover-evidence.test.js
iindex 1098233..f1a964c 100644
---- a/test/cutover-evidence.test.js
++++ b/test/cutover-evidence.test.js
@@@ -1,7 +1,7 @@
  'use strict';
  /**
-- * The T3 closeout record must exist, keep its checks, and the README must no longer describe the
-- * database as SQLite (plan T3; a silent re-draft would lose the evidence). Fails loudly if either regresses.
++ * The T3 closeout record must exist, keep its checks, and the README must keep describing the
++ * database as PostgreSQL (plan T3; a silent re-draft would lose the evidence). Fails loudly if either regresses.
   */
  const assert = require('assert');
  const fs = require('fs');
@@@ -18,7 +18,9 @@ t('docs/cutover-evidence-t3.md records the T3 checks', () => {
      }
  });
  
--t('README.md no longer describes Chat as SQLite', () => {
++t('README.md describes Chat\'s database as PostgreSQL', () => {
      const readme = fs.readFileSync(path.join(ROOT, 'README.md'), 'utf8');
--    assert.ok(!readme.includes('SQLite today; PostgreSQL per plan T3'), 'README.md still says "SQLite today; PostgreSQL per plan T3"');
++    assert.ok(readme.includes('Own database on PostgreSQL'), 'README.md no longer says "Own database on PostgreSQL"');
  });
++
++t.run();