feat(nav): hide unfinished Reports section platform-wide

Route and nav link removed (not the page/component files, kept as a
base to resume later) — navigating to /reports now falls through to
the catch-all redirect to /dashboard for every role, including admin.

fix(campaigns): show all non-campaign tests when adding to a campaign

The 'Existing Test' picker only ever queried state=draft, but the
backend places no restriction on a test's own state when adding it to
a campaign (only the campaign's own status matters) — tests already
in progress or completed were invisible here for no real reason.

frontend/src/App.tsx

@@ -20,7 +20,9 @@ const TestCatalogPage = React.lazy(() => import("./pages/TestCatalogPage"));
 const ValidatedTestsPage = React.lazy(() => import("./pages/ValidatedTestsPage"));
 const ReviewQueuePage = React.lazy(() => import("./pages/ReviewQueuePage"));
 const ImportRTPage = React.lazy(() => import("./pages/ImportRTPage"));
-const ReportsPage = React.lazy(() => import("./pages/ReportsPage"));
+// Reports is unfinished — hidden platform-wide (route + nav link removed
+// below) until it's ready. Left unimported/unrouted rather than deleted.
+// const ReportsPage = React.lazy(() => import("./pages/ReportsPage"));
 const SystemPage = React.lazy(() => import("./pages/SystemPage"));
 const UsersPage = React.lazy(() => import("./pages/UsersPage"));
 const AuditLogPage = React.lazy(() => import("./pages/AuditLogPage"));
@@ -110,8 +112,7 @@ export default function App() {
           }
         />
 
-        {/* ── Reports ──────────────────────────────────────────── */}
-        <Route path="/reports" element={<Suspense fallback={<LoadingSpinner text="Loading…" />}><ReportsPage /></Suspense>} />
+        {/* ── Reports (hidden — unfinished, see import comment above) ── */}
 
         {/* ── Settings (all authenticated users) ───────────────── */}
         <Route path="/settings" element={<Suspense fallback={<LoadingSpinner text="Loading…" />}><SettingsPage /></Suspense>} />