fix(certificates): продлевать по подтверждённому сроку и проверить реальный импорт

docs/ux-ui/acceptance/acme256-tls-before.json

@@ -0,0 +1,15 @@
+{
+  "sampledAt": "2026-10-14T16:52:16.930Z",
+  "fqdn": "mmt253-8e62a941.pngs.top",
+  "certName": "mmt253-8e62a941",
+  "remoteAddress": "104.165.244.7",
+  "authorized": true,
+  "hostnameMatched": true,
+  "protocol": "TLSv1.2",
+  "fingerprint256": "34:2D:36:BC:13:C4:F4:E8:07:AD:D3:83:3F:61:B6:B7:0A:A4:79:1C:BF:29:7B:CB:EF:1B:00:26:D2:2B:51:A3",
+  "validFrom": "Oct 14 15:51:49 2026 GMT",
+  "validUntil": "Jan 12 15:51:48 2027 GMT",
+  "nativeName": "mmt253-8e62a941",
+  "nativePrivateKey": true,
+  "nativeFingerprint256": "342d36bc13c4f4e807add3833f61b6b70aa4791cbf297bcbef1b0026d22b51a3"
+}