feat: add Reachability Center and Why Drawer components with tests

- Implemented ReachabilityCenterComponent for displaying asset reachability status with summary and filtering options.
- Added ReachabilityWhyDrawerComponent to show detailed reachability evidence and call paths.
- Created unit tests for both components to ensure functionality and correctness.
- Updated accessibility test results for the new components.

docs/api/console/samples/exception-schema-sample.json

@@ -1,37 +1,58 @@
 {
-  "exceptionId": "exc::tenant-default::2025-12-06::00012",
+  "schemaVersion": "1.0",
+  "exceptionId": "exc-001",
   "tenantId": "tenant-default",
-  "title": "Risk accepted for log4j on batch nodes",
-  "state": "pending_review",
-  "type": "advisory",
+  "name": "log4j-temporary-exception",
+  "displayName": "Log4j Temporary Exception",
+  "description": "Temporary exception for legacy Log4j usage in internal tooling",
+  "type": "vulnerability",
+  "status": "pending_review",
+  "severity": "high",
   "scope": {
-    "level": "asset",
-    "assetIds": ["batch-node-17", "batch-node-18"],
-    "advisoryIds": ["CVE-2021-44228"],
-    "components": ["pkg:maven/org.apache.logging.log4j/log4j-core@2.14.0"]
+    "type": "component",
+    "tenantId": "tenant-default",
+    "componentPurls": ["pkg:maven/org.apache.logging.log4j/log4j-core@2.14.1"],
+    "vulnIds": ["CVE-2021-44228"]
   },
   "justification": {
-    "template": "compensating_control",
-    "details": "Ingress disabled; nodes isolated; patch planned 2025-12-20"
+    "template": "compensating-control",
+    "text": "Ingress disabled; nodes isolated; patch planned 2025-12-20"
   },
   "timebox": {
-    "start": "2025-12-06T00:00:00Z",
-    "end": "2025-12-31T00:00:00Z",
-    "maxRenewals": 1
+    "startDate": "2025-12-03T00:00:00Z",
+    "endDate": "2025-12-31T23:59:59Z",
+    "autoRenew": false
   },
-  "audit": {
-    "createdBy": "alice@example.com",
-    "createdAt": "2025-12-06T11:12:13Z",
-    "modifiedAt": "2025-12-06T11:12:13Z"
+  "approvals": [
+    {
+      "approvalId": "apr-001",
+      "approvedBy": "security-lead@example.com",
+      "approvedAt": "2025-12-04T10:30:00Z",
+      "comment": "Approve with condition: migrate before expiry."
+    }
+  ],
+  "auditTrail": [
+    {
+      "auditId": "aud-001",
+      "action": "created",
+      "actor": "alice@example.com",
+      "timestamp": "2025-12-03T00:00:00Z"
+    },
+    {
+      "auditId": "aud-002",
+      "action": "submitted",
+      "actor": "alice@example.com",
+      "timestamp": "2025-12-03T00:05:00Z",
+      "previousStatus": "draft",
+      "newStatus": "pending_review"
+    }
+  ],
+  "labels": {
+    "ticket": "SEC-123",
+    "owner": "platform-security"
   },
-  "links": {
-    "history": "/console/exceptions/exc::tenant-default::2025-12-06::00012/history",
-    "attachments": [
-      {
-        "name": "risk-assessment.pdf",
-        "url": "https://console.local/files/risk-assessment.pdf?sig=...",
-        "sha256": "cafe..."
-      }
-    ]
-  }
+  "createdBy": "alice@example.com",
+  "createdAt": "2025-12-03T00:00:00Z",
+  "updatedBy": "alice@example.com",
+  "updatedAt": "2025-12-03T00:05:00Z"
 }