feat(compliance): add 'View in Reporting' link for 2.3.x Ivanti metrics

In ComplianceDetailPanel, active metrics with a metric_id starting with
'2.3' and an Ivanti_Vulnerability_ID in extra_json now surface the ID
prominently alongside a 'View in Reporting →' button. Clicking navigates
directly to the Reporting page. onNavigate prop threaded through
App → CompliancePage → ComplianceDetailPanel → MetricRow.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/App.js

@@ -1044,7 +1044,7 @@ export default function App() {
 
         {/* Page content */}
         {currentPage === 'reporting'      && <ReportingPage filterDate={calendarFilter} filterEXC={reportingExcFilter} />}
-        {currentPage === 'compliance'     && <CompliancePage />}
+        {currentPage === 'compliance'     && <CompliancePage onNavigate={setCurrentPage} />}
         {currentPage === 'knowledge-base' && <KnowledgeBasePage />}
         {currentPage === 'exports'        && <ExportsPage />}