Add unit tests for PackRunAttestation and SealedInstallEnforcer

- Implement comprehensive tests for PackRunAttestationService, covering attestation generation, verification, and event emission.
- Add tests for SealedInstallEnforcer to validate sealed install requirements and enforcement logic.
- Introduce a MonacoLoaderService stub for testing purposes to prevent Monaco workers/styles from loading during Karma runs.

docs/api/console/samples/console-export-status.json

@@ -0,0 +1,24 @@
+{
+  "exportId": "console-export::tenant-default::2025-12-06::0007",
+  "status": "running",
+  "estimateSeconds": 420,
+  "retryAfter": 15,
+  "createdAt": "2025-12-06T12:10:00Z",
+  "updatedAt": "2025-12-06T12:11:05Z",
+  "outputs": [
+    {
+      "type": "manifest",
+      "format": "json",
+      "url": "https://exports.local/tenant-default/0007/manifest.json?sig=...",
+      "sha256": "c0ffee...",
+      "expiresAt": "2025-12-06T13:10:00Z"
+    }
+  ],
+  "progress": {
+    "percent": 42,
+    "itemsCompleted": 210,
+    "itemsTotal": 500,
+    "assetsReady": 12
+  },
+  "errors": []
+}