test(dawarich): pin the movement block, the channels and the mocks; document the connection

Covers the day section, the model projection without the travel country and
the two correlation channels; the backup and correlation mocks learn the new
delegate. Adds the operator page for DAWARICH_PRIVATE_ORIGINS and regenerates
the API contract.

src/app/api/export/__tests__/per-type-routes.test.ts

@@ -216,6 +216,7 @@ beforeEach(() => {
   vi.mocked(prisma.environmentTravelLocation.findMany).mockResolvedValue(
     [] as never,
   );
+  vi.mocked(prisma.dawarichDay.findMany).mockResolvedValue([] as never);
 });
 
 afterEach(() => {

src/app/api/insights/correlations/__tests__/route.test.ts

@@ -160,6 +160,7 @@ beforeEach(() => {
   ).mockResolvedValue([]);
   vi.mocked(prisma.customMetric.findMany).mockResolvedValue([] as never);
   vi.mocked(prisma.symptomDefinition.findMany).mockResolvedValue([] as never);
+  vi.mocked(prisma.dawarichDay.findMany).mockResolvedValue([] as never);
   vi.mocked(hadFindingsBeforeSeasonalAdjustment).mockResolvedValue(false);
 });