test(e2e): strengthen assertions in supersync E2E tests

- Assert 401 route interception fired in token expiry tests
- Assert expected LWW winner in three-client config convergence test
- Navigate to root view instead of TODAY for cascade delete orphan check

e2e/tests/sync/supersync-cascade-delete.spec.ts

@@ -162,10 +162,10 @@ test.describe('@supersync Cross-Entity Cascade Delete', () => {
       // ============ PHASE 5: Verify no orphans ============
       console.log('[CascadeDelete] Phase 5: Verifying no orphaned tasks');
 
-      // Navigate to a known view on both clients
-      await clientA.page.goto('/#/tag/TODAY/tasks');
+      // Navigate to root view where orphaned tasks would appear
+      await clientA.page.goto('/#/');
       await clientA.page.waitForLoadState('networkidle');
-      await clientB.page.goto('/#/tag/TODAY/tasks');
+      await clientB.page.goto('/#/');
       await clientB.page.waitForLoadState('networkidle');
 
       // Verify project is gone from sidebar on both clients

e2e/tests/sync/supersync-global-config-edge-cases.spec.ts

@@ -132,6 +132,9 @@ test.describe('@supersync Global Config Sync Edge Cases', () => {
       expect(aCeleb).toBe(bCeleb);
       expect(aCeleb).toBe(cCeleb);
 
+      // Verify the expected LWW winner: C's operation was latest, so celebration should be ON
+      expect(aCeleb).toBe(true);
+
       console.log('[3Client] ✓ All three clients converged to same state');
     } finally {
       if (clientA) await closeClient(clientA);

e2e/tests/sync/supersync-token-expiry.spec.ts

@@ -79,6 +79,9 @@ test.describe('@supersync Token Expiry Recovery', () => {
         console.log('[TokenExpiry] First sync failed with 401 as expected');
       }
 
+      // Verify the 401 interception actually fired
+      expect(state.return401).toBe(false);
+
       // Remove interception
       await clientA.page.unroute('**/api/sync/ops/**');
       await clientA.page.waitForTimeout(500);
@@ -170,6 +173,9 @@ test.describe('@supersync Token Expiry Recovery', () => {
         console.log('[TokenExpiry] First download failed with 401 as expected');
       }
 
+      // Verify the 401 interception actually fired
+      expect(state.return401).toBe(false);
+
       // Remove interception
       await clientB.page.unroute('**/api/sync/ops/**');
       await clientB.page.waitForTimeout(500);