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

docs/ux-ui/acceptance/acme256-native.json

@@ -0,0 +1,13 @@
+{
+  "date": "2026-10-15",
+  "block": "12.5.256",
+  "certificatesBaselineMatched": true,
+  "fileStableMetadataBaselineMatched": true,
+  "directoryLastModifiedExcluded": true,
+  "configuredServicesBaselineMatched": true,
+  "dynamicServiceConnectionsExcluded": true,
+  "normalizedExportMatched": true,
+  "passwordChanged": false,
+  "temporaryBackendPauseForLoginLimit": true,
+  "backendRestartedAfterCleanup": true
+}