refactor(module1): drop live board feed + actor map; focus on Layer 1

Module 1 is now: domain (carried, read-only) → ADD Layer 1 (domain &
events) → proceed. Removed the Live board feed and Actor map cards. The
node feed hook stays (its online signal still gates Proceed), just no
longer rendered.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

src/pages/Module1.test.tsx

@@ -47,20 +47,10 @@ describe('Module1', () => {
     expect(screen.queryByLabelText(/your domain/i)).toBeNull()
   })
 
-  it('renders the actor map and the live board feed', () => {
+  it('focuses on Layer 1 — no live board feed or actor map cards', () => {
     renderPage()
-    expect(screen.getByTestId('actor-map')).toBeInTheDocument()
-    expect(screen.getByTestId('live-board-feed')).toBeInTheDocument()
-  })
-
-  it('streams real board activity into the feed', async () => {
-    renderPage()
-    act(() =>
-      emit({ type: 'node:activity', teamId: 'x', kind: 'flash', label: 'Flashing sketch to the MCU', ts: '' }),
-    )
-    await waitFor(() =>
-      expect(screen.getByTestId('live-board-activity')).toHaveTextContent(/flashing sketch/i),
-    )
+    expect(screen.queryByTestId('live-board-feed')).toBeNull()
+    expect(screen.queryByTestId('actor-map')).toBeNull()
   })
 
   it('gates Proceed until the board is online and L1 is filled', async () => {