milestone 30: overview as a dashboard, explicit health contract, period aggregations

admin/src/features/diagnostics/DiagnosticDetailPage.test.tsx

@@ -5,6 +5,7 @@ import { AuthProvider } from "@/auth/store";
 import { createQueryClient } from "@/lib/queryClient";
 import { createAppRouter } from "@/routes";
 import { DIAGNOSTIC_CODES, type DiagnosticEvent } from "@/lib/types";
+import { health } from "@/lib/healthFixture";
 import { EVENT_COPY } from "./eventCopy";
 
 const NOW_S = Math.floor(Date.now() / 1000);
@@ -35,6 +36,8 @@ beforeEach(() => {
 	requested = [];
 	responses = {
 		"/api/version": { version: "0.0.0-test", git_commit: "0000000", zig_version: "0.16.0", uptime_seconds: 1 },
+		// The shell reads health for the Diagnostics nav badge on every route.
+		"/api/health": health(),
 	};
 	vi.stubGlobal(
 		"fetch",