feat: United/DentalHub claim submission automation and patient list sync

- Add full Selenium automation for United/DentalHub claim submission
  (steps 1-8: login, OTP, patient search, practitioner page, code entry,
  other coverage No, attachments, submit, Status & History PDF)
- Consolidate UnitedDH siteKey to UNITED_SCO throughout app
- Fix procedure date overwrite with Ctrl+A+Delete before typing service date
- Fix OTP popup reliability: emit every poll (no throttle)
- Fix Chrome session persistence: only clear cookies on startup
- Add touchPatient() to storage: claim submission now pushes patient to
  top of list across eligibility, claims, and documents pages

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/Backend/src/routes/index.ts

@@ -19,6 +19,8 @@ import insuranceStatusCCARoutes from "./insuranceStatusCCA";
 import insuranceStatusCCAClaimRoutes from "./insuranceStatusCCAClaim";
 import insuranceStatusCCAPreAuthRoutes from "./insuranceStatusCCAPreAuth";
 import insuranceStatusDDMAClaimRoutes from "./insuranceStatusDDMAClaim";
+import insuranceStatusUnitedDHClaimRoutes from "./insuranceStatusUnitedDHClaim";
+import insuranceStatusTuftsSCOClaimRoutes from "./insuranceStatusTuftsSCOClaim";
 import paymentsRoutes from "./payments";
 import databaseManagementRoutes from "./database-management";
 import notificationsRoutes from "./notifications";
@@ -60,6 +62,8 @@ router.use("/insurance-status-cca", insuranceStatusCCARoutes);
 router.use("/claims", insuranceStatusCCAClaimRoutes);
 router.use("/claims", insuranceStatusCCAPreAuthRoutes);
 router.use("/claims", insuranceStatusDDMAClaimRoutes);
+router.use("/claims", insuranceStatusUnitedDHClaimRoutes);
+router.use("/claims", insuranceStatusTuftsSCOClaimRoutes);
 router.use("/payments", paymentsRoutes);
 router.use("/database-management", databaseManagementRoutes);
 router.use("/notifications", notificationsRoutes);