Fix empty board loading state and browser P2P patch (#1175)

* fix(board): show loaded empty boards

* fix(p2p): patch browser hooks runtime

* fix(board): stop flash loading for explicit empty boards

* fix(board): wait for feed on preloaded empty pages

src/views/board/__tests__/board.test.tsx

@@ -36,6 +36,7 @@ type TestComment = {
 type TestCommunity = {
   error?: Error;
   nameResolved?: boolean;
+  updatedAt?: number;
   posts?: {
     pageCids?: Record<string, string>;
     pages?: Record<string, { comments?: TestComment[]; nextCid?: string }>;
@@ -687,6 +688,43 @@ describe('Board', () => {
     expect(container.querySelectorAll('[data-testid="loading-ellipsis"]').length).toBe(1);
   });
 
+  it('renders an empty flash table when a loaded board reports explicit empty page cids', async () => {
+    testState.directories = [{ address: 'flash-posting.bso', directoryCode: 'f', title: '/f/ - Flash' }];
+    testState.directoryByAddress = {
+      'flash-posting.bso': {
+        address: 'flash-posting.bso',
+        directoryCode: 'f',
+        features: { postsPerPage: 50 },
+        title: '/f/ - Flash',
+      },
+    };
+    testState.resolvedCommunityAddress = 'flash-posting.bso';
+    testState.feedState = 'fetching-ipns';
+    testState.hasMore = true;
+    testState.community = {
+      error: undefined,
+      posts: {
+        pageCids: {},
+        pages: {},
+      },
+      shortAddress: 'flash-posting.bso',
+      state: 'succeeded',
+      title: '/f/ - Flash',
+      updatedAt: 1781773422,
+    };
+    testState.communitySnapshot = {
+      shortAddress: 'flash-posting.bso',
+      title: '/f/ - Flash',
+    };
+
+    await renderBoard({ initialEntry: '/f', routePath: '/:boardIdentifier/*' });
+
+    const table = container.querySelector('#flash-list');
+    expect(table).toBeTruthy();
+    expect(table?.textContent).toContain('no posts');
+    expect(table?.querySelector('[data-testid="loading-ellipsis"]')).toBeNull();
+  });
+
   it('inserts a nonoko pending account comment after pinned posts on the redirected board index', async () => {
     const currentTimestamp = Math.floor(Date.now() / 1000);
     testState.feed = [
@@ -1043,6 +1081,71 @@ describe('Board', () => {
     expect(container.querySelector('[data-testid="loading-ellipsis"]')).toBeNull();
   });
 
+  it('keeps loading when an empty preloaded board page finishes before the feed', async () => {
+    testState.feedStateString = undefined;
+    testState.feedState = 'fetching-ipns';
+    testState.hasMore = true;
+    testState.community = {
+      error: undefined,
+      shortAddress: 'music-posting.eth',
+      state: 'succeeded',
+      title: '/mu/ - Music',
+    };
+    markRawBoardThreadsFullyLoaded();
+
+    await renderBoard({ initialEntry: '/mu', routePath: '/:boardIdentifier/*' });
+
+    expect(container.textContent).not.toContain('no_threads');
+    expect(container.querySelector('[data-testid="loading-ellipsis"]')?.textContent).toBe('downloading_board');
+    expect(container.textContent).toContain('load_more');
+  });
+
+  it('shows no threads when a loaded board reports explicit empty page cids', async () => {
+    testState.feedStateString = 'Downloading board from peers';
+    testState.feedState = 'fetching-ipns';
+    testState.hasMore = true;
+    testState.community = {
+      error: undefined,
+      posts: {
+        pageCids: {},
+        pages: {},
+      },
+      shortAddress: 'blog.bitsocial.bso',
+      state: 'succeeded',
+      title: 'Bitsocial Updates',
+      updatedAt: 1781773422,
+    };
+    testState.communitySnapshot = {
+      shortAddress: 'blog.bitsocial.bso',
+      title: 'Bitsocial Updates',
+    };
+
+    await renderBoard({ initialEntry: '/blog.bitsocial.bso', routePath: '/:boardIdentifier/*' });
+
+    expect(container.textContent).toContain('no_threads');
+    expect(container.querySelector('[data-testid="loading-ellipsis"]')).toBeNull();
+    expect(container.textContent).not.toContain('load_more');
+  });
+
+  it('keeps loading when raw board pages contain threads but the feed has not caught up', async () => {
+    testState.feedStateString = undefined;
+    testState.feedState = 'fetching-ipns';
+    testState.hasMore = true;
+    testState.community = {
+      error: undefined,
+      shortAddress: 'music-posting.eth',
+      state: 'succeeded',
+      title: '/mu/ - Music',
+    };
+    markRawBoardThreadsFullyLoaded([{ cid: 'post-1' }]);
+
+    await renderBoard({ initialEntry: '/mu', routePath: '/:boardIdentifier/*' });
+
+    expect(container.textContent).not.toContain('no_threads');
+    expect(container.querySelector('[data-testid="loading-ellipsis"]')?.textContent).toBe('downloading_board');
+    expect(container.textContent).toContain('load_more');
+  });
+
   it('does not show no threads after board metadata loads but raw thread pages are still missing', async () => {
     testState.feedStateString = undefined;
     testState.feedState = 'succeeded';