fix(B2,B3): wire ticker header actions

Route the ticker header watchlist and alert controls to their existing screens and replace the symbol placeholder with the research profile company name while preserving a symbol fallback.

Refs: docs/AUDIT_REDESIGN.md items B2 and B3.

Co-Authored-By: GPT-5 Codex <noreply@openai.com>

web/src/views/HomeView.dom.test.tsx

@@ -0,0 +1,87 @@
+// @vitest-environment jsdom
+import { describe, expect, it, vi } from 'vitest';
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { MemoryRouter, Route, Routes } from 'react-router-dom';
+import { AppContext, type AppContextValue } from '../context/AppContext';
+import { TickerHeader } from './HomeView';
+
+const { fetchResearchProfileMock } = vi.hoisted(() => ({
+  fetchResearchProfileMock: vi.fn(),
+}));
+
+vi.mock('../lib/marketApi', async () => {
+  const actual = await vi.importActual<typeof import('../lib/marketApi')>('../lib/marketApi');
+  return {
+    ...actual,
+    fetchResearchProfile: fetchResearchProfileMock,
+  };
+});
+
+const appContext: AppContextValue = {
+  botState: {
+    settings: { isAlgoEnabled: true },
+    symbols: {
+      AAPL: {
+        price: 212.42,
+        changeToday: 1.5,
+      },
+    },
+    health: { tradingLoopHealthy: true, reconciliationLoopHealthy: true, capitalInvariantViolations: 0 },
+    alerts: [],
+    positions: [],
+    orders: [],
+    history: [],
+    uptime: 0,
+  } as any,
+  socket: null,
+  connected: true,
+  activeSymbol: 'AAPL',
+  setActiveSymbol: vi.fn(),
+  isAdmin: false,
+  user: { id: 'u1' },
+  profile: {},
+  showBacktestTab: false,
+  showMarketplaceTab: false,
+  handleSignOut: vi.fn(),
+};
+
+function renderTickerHeader() {
+  return render(
+    <AppContext.Provider value={appContext}>
+      <MemoryRouter initialEntries={['/']}>
+        <Routes>
+          <Route path="/" element={<TickerHeader symbol="AAPL" />} />
+          <Route path="/watchlist" element={<div>Watchlist route</div>} />
+          <Route path="/alerts" element={<div>Alerts route</div>} />
+        </Routes>
+      </MemoryRouter>
+    </AppContext.Provider>,
+  );
+}
+
+describe('TickerHeader', () => {
+  it('loads the company name from the research profile', async () => {
+    fetchResearchProfileMock.mockResolvedValueOnce({ companyName: 'Apple Inc.' });
+
+    renderTickerHeader();
+
+    expect(screen.getByRole('heading', { name: 'AAPL' })).toBeInTheDocument();
+    await waitFor(() => expect(screen.getByText('Apple Inc.')).toBeInTheDocument());
+  });
+
+  it('opens watchlist and alerts routes from header actions', async () => {
+    fetchResearchProfileMock.mockResolvedValue({ companyName: 'Apple Inc.' });
+    const user = userEvent.setup();
+
+    const firstRender = renderTickerHeader();
+
+    await user.click(screen.getByRole('button', { name: /open watchlist/i }));
+    expect(screen.getByText('Watchlist route')).toBeInTheDocument();
+    firstRender.unmount();
+
+    renderTickerHeader();
+    await user.click(screen.getByRole('button', { name: /open alerts/i }));
+    expect(screen.getByText('Alerts route')).toBeInTheDocument();
+  });
+});

web/src/views/HomeView.tsx

@@ -1,4 +1,5 @@
 import { useState, useEffect } from 'react';
+import { useNavigate } from 'react-router-dom';
 import { Star, Bell, BarChart2, Loader2 } from 'lucide-react';
 import {
   AreaChart, Area, Bar, ComposedChart, Line, LineChart, XAxis, YAxis, Tooltip,
@@ -132,14 +133,35 @@ function calculateBollingerBands(closes: number[], period = 20, deviations = 2)
   return { upper, middle, lower };
 }
 
+function normalizeResearchProfile(profile: any): any {
+  return Array.isArray(profile) ? profile[0] : profile;
+}
+
 // ─── Ticker header ────────────────────────────────────────────────────────────
-function TickerHeader({ symbol }: { symbol: string }) {
+export function TickerHeader({ symbol }: { symbol: string }) {
+  const navigate = useNavigate();
   const { botState } = useAppContext();
   const data = botState.symbols?.[symbol];
   const price = data?.price ?? 0;
   const change = data?.changeToday ?? 0;
   const changePct = price > 0 ? (change / (price - change)) * 100 : 0;
   const positive = change >= 0;
+  const [companyName, setCompanyName] = useState(symbol);
+
+  useEffect(() => {
+    let cancelled = false;
+    setCompanyName(symbol);
+    fetchResearchProfile(symbol)
+      .then(profile => {
+        if (cancelled) return;
+        const company = normalizeResearchProfile(profile)?.companyName;
+        setCompanyName(typeof company === 'string' && company.trim() ? company.trim() : symbol);
+      })
+      .catch(() => {
+        if (!cancelled) setCompanyName(symbol);
+      });
+    return () => { cancelled = true; };
+  }, [symbol]);
 
   return (
     <div style={{ marginBottom: 16 }}>
@@ -148,13 +170,15 @@ function TickerHeader({ symbol }: { symbol: string }) {
           {symbol}
         </h1>
         <span style={{ fontSize: 13, color: '#6B7280', fontWeight: 500, marginTop: 4 }}>
-          {/* Company name placeholder — Phase 4 will fill from FMP */}
-          {symbol}
+          {companyName}
         </span>
 
         <div style={{ marginLeft: 'auto', display: 'flex', gap: 8 }}>
-          {/* Saved badge */}
-          <button style={{
+          <button
+            type="button"
+            aria-label={`Open watchlist for ${symbol}`}
+            onClick={() => navigate('/watchlist')}
+            style={{
             display: 'flex', alignItems: 'center', gap: 6,
             padding: '5px 12px', borderRadius: 20,
             background: '#F0FDF4', border: '1px solid #86EFAC',
@@ -162,7 +186,11 @@ function TickerHeader({ symbol }: { symbol: string }) {
           }}>
             <Star size={13} fill="#16A34A" /> Watchlist
           </button>
-          <button style={{
+          <button
+            type="button"
+            aria-label={`Open alerts for ${symbol}`}
+            onClick={() => navigate('/alerts')}
+            style={{
             width: 32, height: 32, borderRadius: '50%',
             border: '1px solid #E5E7EB', background: '#fff',
             display: 'flex', alignItems: 'center', justifyContent: 'center',
@@ -549,7 +577,7 @@ function ResearchCards({ symbol }: { symbol: string }) {
       fetchResearchEarnings(symbol),
     ]).then(([p, m, e]) => {
       if (cancelled) return;
-      if (p.status === 'fulfilled') setProfile(Array.isArray(p.value) ? p.value[0] : p.value);
+      if (p.status === 'fulfilled') setProfile(normalizeResearchProfile(p.value));
       if (m.status === 'fulfilled') setMetrics(Array.isArray(m.value) ? m.value[0] : m.value);
       if (e.status === 'fulfilled') setEarnings(e.value ?? []);
       setLoading(false);