chore(test): подготовить проверку реального продления сертификата

backend/scripts/acceptance/acme-renew-tls.test.mjs

@@ -0,0 +1,13 @@
+import assert from 'node:assert/strict';
+import { compareRenewal } from './acme-renew-tls.mjs';
+const before = { fqdn: 'mmt253-a1b2c3d4.pngs.top', certName: 'mmt253-a1b2c3d4', nativeName: 'mmt253-a1b2c3d4',
+  remoteAddress: '104.165.244.7', authorized: true, hostnameMatched: true, nativePrivateKey: true,
+  fingerprint256: 'a'.repeat(64), nativeFingerprint256: 'a'.repeat(64), sampledAt: '2026-10-14T12:00:00Z', validUntil: '2027-01-12T12:00:00Z' };
+const after = { ...before, fingerprint256: 'b'.repeat(64), nativeFingerprint256: 'b'.repeat(64), sampledAt: '2026-10-14T12:01:00Z' };
+assert.equal(compareRenewal(before, after).fingerprintChanged, true);
+for (const patch of [{ fingerprint256: before.fingerprint256, nativeFingerprint256: before.nativeFingerprint256 },
+  { nativeFingerprint256: before.nativeFingerprint256 }, { authorized: false }, { hostnameMatched: false },
+  { nativePrivateKey: false }, { nativeName: 'another' }, { fqdn: 'other.pngs.top' },
+  { remoteAddress: '194.226.121.150' }, { validUntil: 'bad' }, { validUntil: '2026-10-13T12:00:00Z' },
+  { sampledAt: '2026-10-14T11:00:00Z' }]) assert.throws(() => compareRenewal(before, { ...after, ...patch }));
+console.log('Renewal acceptance comparison: changed leaf passes; 11 false-success cases rejected. No network or CA calls.');