feat(api): Implement Console Export Client and Models

- Added ConsoleExportClient for managing export requests and responses.
- Introduced ConsoleExportRequest and ConsoleExportResponse models.
- Implemented methods for creating and retrieving exports with appropriate headers.

feat(crypto): Add Software SM2/SM3 Cryptography Provider

- Implemented SmSoftCryptoProvider for software-only SM2/SM3 cryptography.
- Added support for signing and verification using SM2 algorithm.
- Included hashing functionality with SM3 algorithm.
- Configured options for loading keys from files and environment gate checks.

test(crypto): Add unit tests for SmSoftCryptoProvider

- Created comprehensive tests for signing, verifying, and hashing functionalities.
- Ensured correct behavior for key management and error handling.

feat(api): Enhance Console Export Models

- Expanded ConsoleExport models to include detailed status and event types.
- Added support for various export formats and notification options.

test(time): Implement TimeAnchorPolicyService tests

- Developed tests for TimeAnchorPolicyService to validate time anchors.
- Covered scenarios for anchor validation, drift calculation, and policy enforcement.

docs/api/signals/samples/callgraph-sample.json

@@ -0,0 +1,23 @@
+{
+  "tenantId": "tenant-default",
+  "assetId": "registry.local/library/app@sha256:abc123",
+  "paths": [
+    {
+      "id": "path-1",
+      "source": "api-gateway",
+      "target": "jwt-auth-service",
+      "hops": [
+        { "service": "api-gateway", "endpoint": "/login", "timestamp": "2025-12-05T10:00:00Z" },
+        { "service": "jwt-auth-service", "endpoint": "/verify", "timestamp": "2025-12-05T10:00:01Z" }
+      ],
+      "evidence": {
+        "traceId": "trace-abc",
+        "spanCount": 2,
+        "score": 0.92
+      }
+    }
+  ],
+  "pagination": {
+    "nextPageToken": null
+  }
+}