feat(platform): add source readiness operations view

vehicle-data-platform/apps/web/src/api/client.test.ts

@@ -287,6 +287,47 @@ test('onlineVehicleStatuses reads paged online vehicle status rows', async () =>
   expect(result.items[0].offlineDurationMinutes).toBe(18);
 });
 
+test('sourceReadiness reads ops source readiness plan', async () => {
+  const fetchMock = vi.spyOn(globalThis, 'fetch').mockResolvedValue({
+    ok: true,
+    json: async () => ({
+      data: {
+        totalVehicles: 1033,
+        onlineVehicles: 208,
+        kafkaLag: 0,
+        activeConnections: 178,
+        redisOnlineKeys: 258,
+        platformRelease: 'platform-source-test',
+        sources: [{
+          protocol: 'GB32960',
+          role: '整车与氢能实时数据主来源',
+          online: 73,
+          total: 340,
+          onlineRate: 21.47,
+          missingVehicles: 693,
+          severity: 'warning',
+          status: '覆盖不足',
+          evidence: '在线 73/340',
+          action: '核对平台转发清单',
+          acceptance: '缺失来源车辆下降',
+          vehiclesHash: '#/vehicles?missingProtocol=GB32960',
+          realtimeHash: '#/realtime?protocol=GB32960',
+          historyHash: '#/history-query?protocol=GB32960&tab=raw',
+          alertHash: '#/alert-events?protocol=GB32960'
+        }]
+      },
+      traceId: 'trace-test',
+      timestamp: 1783094400000
+    })
+  } as Response);
+
+  const result = await api.sourceReadiness();
+
+  expect(fetchMock).toHaveBeenCalledWith('/api/ops/source-readiness', undefined);
+  expect(result.platformRelease).toBe('platform-source-test');
+  expect(result.sources[0].protocol).toBe('GB32960');
+});
+
 test('api errors include backend message, detail, and trace id', async () => {
   vi.spyOn(globalThis, 'fetch').mockResolvedValue({
     ok: false,