feat: build vehicle data platform and production pipeline

vehicle-data-platform/apps/web/src/v2/domain/track.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from 'vitest';
+import type { TrackPlaybackResponse } from '../../api/types';
+import { formatDuration, sampledEventIndex, trackCsv } from './track';
+
+describe('track domain', () => {
+  it('formats durations and maps original event indices to sampled points', () => {
+    expect(formatDuration(3671)).toBe('01:01:11');
+    expect(sampledEventIndex({ index: 50 } as never, 11, 101)).toBe(5);
+    expect(sampledEventIndex({ index: 50, sampledIndex: 7 } as never, 11, 101)).toBe(7);
+  });
+
+  it('exports the current result with UTF-8 BOM and escaped values', () => {
+    const track = {
+      plate: '粤A,001', vin: 'VIN', summary: { startTime: '2026-07-03 10:00:00' },
+      points: [{ vin: 'VIN', plate: '粤A,001', protocol: 'JT808', deviceTime: '2026-07-03 10:00:00', serverTime: '2026-07-03 10:00:01', longitude: 113.1, latitude: 23.1, speedKmh: 10, totalMileageKm: 100 }]
+    } as TrackPlaybackResponse;
+    const csv = trackCsv(track);
+    expect(csv.startsWith('\uFEFFVIN,')).toBe(true);
+    expect(csv).toContain('"粤A,001"');
+  });
+});