Complete React live and Race Hub views

frontend/src/test/WeatherView.test.tsx

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+import { describe, expect, it } from 'vitest'
+import { render, screen } from '@testing-library/react'
+import { WeatherView } from '../components/WeatherView'
+import type { WeatherSample } from '../types'
+
+const weather: WeatherSample[] = [
+  {
+    session_key: 9472,
+    meeting_key: 1229,
+    date: '2025-05-25T13:00:00Z',
+    air_temperature: 20,
+    track_temperature: 30,
+    humidity: 60,
+    pressure: 1010,
+    rainfall: 0,
+    wind_direction: 180,
+    wind_speed: 2,
+  },
+  {
+    session_key: 9472,
+    meeting_key: 1229,
+    date: '2025-05-25T13:05:00Z',
+    air_temperature: 21,
+    track_temperature: 33,
+    humidity: 62,
+    pressure: 1011,
+    rainfall: 0.2,
+    wind_direction: 190,
+    wind_speed: 3,
+  },
+]
+
+describe('WeatherView', () => {
+  it('renders weather summary and recent samples', () => {
+    render(<WeatherView weather={weather} />)
+
+    expect(screen.getByTestId('weather-view')).toBeInTheDocument()
+    expect(screen.getByText('Avg air / track')).toBeInTheDocument()
+    expect(screen.getByText('20.5C / 31.5C')).toBeInTheDocument()
+    expect(screen.getByText('Rain samples')).toBeInTheDocument()
+    expect(screen.getByText('0.2')).toBeInTheDocument()
+  })
+
+  it('shows a missing-data state when no weather samples are present', () => {
+    render(<WeatherView weather={[]} />)
+
+    expect(screen.getByText(/Weather samples not ingested/i)).toBeInTheDocument()
+  })
+})