Polish Deploy Recon page scan UX and Crucible cross-links.

server/web/src/pages/CruciblePage.test.tsx

@@ -36,6 +36,19 @@ vi.mock('../hooks/useFleetGroups', () => ({
 vi.mock('../api/client', () => ({
   api: {
     sendAgentCommand: vi.fn().mockResolvedValue({ success: true }),
+    getReconDeployKit: vi.fn().mockResolvedValue({
+      ok: true,
+      host: '10.1.2.99',
+      join_lane: 'winrm',
+      dropper_urls: { install_sh: 'https://deck/install.sh' },
+    }),
+    postFleetSpreadToHost: vi.fn().mockResolvedValue({
+      ok: true,
+      host: '10.1.2.99',
+      recommended_command: 'discover_and_join',
+      operator_note: 'seed from lan-1',
+      seed_agent_id: 'seed-1',
+    }),
   },
 }));
 
@@ -75,6 +88,10 @@ vi.mock('../components/Fleet/FullSysCheckPanel', () => ({
   default: () => null,
 }));
 
+vi.mock('../components/Fleet/AccessDepthPanel', () => ({
+  default: () => null,
+}));
+
 vi.mock('../components/HelpTip', () => ({
   HelpTip: () => null,
 }));
@@ -304,6 +321,25 @@ describe('CruciblePage terminal — command_result processing', () => {
   });
 });
 
+describe('CruciblePage reconHost query', () => {
+  beforeEach(() => vi.clearAllMocks());
+  afterEach(() => cleanup());
+
+  it('shows unreachable host spread panel when reconHost has no online agent', async () => {
+    const offline = mockAgent({ id: 'off-1', name: 'ghost', ip: '10.1.2.99', status: 'offline' });
+    useWebSocketMock.mockReturnValue(makeWsValue({ agents: [offline] }) as ReturnType<typeof useWebSocket>);
+    render(
+      <MemoryRouter initialEntries={['/crucible?reconHost=10.1.2.99&tab=spread']}>
+        <CruciblePage />
+      </MemoryRouter>,
+    );
+    await waitFor(() => {
+      expect(screen.getByText(/Spread to unreachable host/i)).toBeInTheDocument();
+    });
+    expect(screen.getByDisplayValue('10.1.2.99')).toBeInTheDocument();
+  });
+});
+
 // ── Helper function tests ─────────────────────────────────────────────────
 
 describe('CruciblePage helpers', () => {