feat(board): v2 header, splash screen, logo route

src/server/board/chrome.ts

@@ -0,0 +1,60 @@
+import { escapeHtml } from '../ui-shared.js';
+
+const LOGO = '<img src="/logo.svg" alt="" width="24" height="24" class="b2-logo-img">';
+
+/**
+ * Fixed app header for board v2. The project cell is visual only — the real
+ * project switcher dropdown arrives with the multi-project v3 spec.
+ * The SSE status span keeps the v1 ids (`sseStatus`, `sseLabel`) so the ported
+ * connection-status JS keeps working unchanged.
+ */
+export function headerHtml(projectName: string): string {
+  const name = escapeHtml(projectName);
+  return `
+<header class="b2-hdr">
+  <span class="b2-brand">${LOGO}<b>agenthub</b></span>
+  <span class="b2-proj" title="Projektwechsel kommt mit v3">/ ${name}&nbsp;<span class="b2-chev">▾</span></span>
+  <nav class="b2-nav" aria-label="Primary">
+    <b aria-current="page">Board</b><a href="/team">Team</a><a href="/activity">Activity</a><a href="/decisions">Decisions</a>
+  </nav>
+  <span class="b2-hdr-right">
+    <button type="button" class="b2-btn" id="newTaskBtn" aria-haspopup="dialog" aria-expanded="false">+ New task</button>
+    <span class="sse-status stale" id="sseStatus">
+      <span class="b2-live-dot" aria-hidden="true"></span>
+      <span id="sseLabel">connecting</span>
+    </span>
+  </span>
+</header>`;
+}
+
+/** Fullscreen splash overlay, shown until first data render (hard cap 1.5s). */
+export function splashHtml(): string {
+  return `
+<div id="b2-splash" class="b2-splash" aria-hidden="true">
+  <div class="b2-splash-inner">
+    <img src="/logo.svg" alt="agenthub" width="72" height="72" class="b2-splash-logo">
+    <div class="b2-splash-word">agenthub</div>
+  </div>
+</div>`;
+}
+
+/**
+ * Inline script: hides the splash after the first successful refresh() or after
+ * a hard 1500ms cap, whichever comes first. Exposes window.__b2SplashDone() so
+ * the data layer can signal completion.
+ */
+export function splashJs(): string {
+  return `
+(function () {
+  var done = false;
+  window.__b2SplashDone = function () {
+    if (done) return;
+    done = true;
+    var s = document.getElementById('b2-splash');
+    if (!s) return;
+    s.classList.add('b2-splash-hide');
+    setTimeout(function () { if (s.parentNode) s.parentNode.removeChild(s); }, 450);
+  };
+  setTimeout(window.__b2SplashDone, 1500); // hard cap — splash must never block
+})();`;
+}

src/server/routes.ts

@@ -59,6 +59,16 @@ export async function registerRoutes(app: FastifyInstance, cwd: string): Promise
   const boardHtml = renderBoardHtml(loadConfig(cwd).projectName);
   app.get('/board', async (_request, reply) => reply.type('text/html; charset=utf-8').send(boardHtml));
 
+  // AgentHub logo (header, splash, favicon). Read-only, cacheable.
+  app.get('/logo.svg', async (_request, reply) => {
+    try {
+      const buf = await readFile(join(CARD_ASSETS_DIR, 'logo.svg'));
+      return reply.type('image/svg+xml').header('Cache-Control', 'public, max-age=3600').send(buf);
+    } catch {
+      return reply.status(404).send('not found');
+    }
+  });
+
   // Serve the KPI-card Lottie animations + the vendored lottie-web player from the
   // repo `assets/` dir. Read-only, path-traversal-guarded, cacheable.
   app.get('/card-assets/*', async (request, reply) => {

tests/boardV2-chrome.test.ts

@@ -0,0 +1,35 @@
+import { describe, it, expect } from 'vitest';
+import { headerHtml, splashHtml, splashJs } from '../src/server/board/chrome.js';
+
+describe('headerHtml', () => {
+  it('renders logo, project cell with chevron, nav and new-task button', () => {
+    const h = headerHtml('my-project');
+    expect(h).toContain('/logo.svg');
+    expect(h).toContain('my-project');
+    expect(h).toContain('b2-proj'); // project cell (visual only, dropdown comes with v3)
+    expect(h).toContain('▾');
+    expect(h).toContain('+ New task');
+    expect(h).toContain('id="newTaskBtn"');
+    // SSE status mount compatible with the ported v1 connection JS
+    expect(h).toContain('id="sseStatus"');
+    expect(h).toContain('id="sseLabel"');
+  });
+  it('escapes the project name', () => {
+    expect(headerHtml('<b>x</b>')).not.toContain('<b>x</b>');
+  });
+});
+
+describe('splash', () => {
+  it('renders overlay with logo and wordmark', () => {
+    const s = splashHtml();
+    expect(s).toContain('id="b2-splash"');
+    expect(s).toContain('/logo.svg');
+    expect(s).toContain('agenthub');
+  });
+  it('fade-out script has a hard timeout and never blocks', () => {
+    const js = splashJs();
+    expect(js).toContain('b2-splash');
+    expect(js).toContain('1500'); // hard cap in ms
+    expect(js).toContain('__b2SplashDone');
+  });
+});