feat: MassHealth PDF import auto-pays full balance + patient name fix

- PDF import now marks payments as PAID when MassHealth patient's
  mhPaidAmount >= totalBilled (no patient balance)
- Newly created patients from MH vouchers get insuranceProvider = 'MassHealth'
- Existing patients with blank insuranceProvider get it filled on import
- Fix: update patient name from PDF if existing record has empty name
- Various frontend/selenium/route updates

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

apps/Frontend/src/components/payments/payments-recent-table.tsx

@@ -579,7 +579,7 @@ export default function PaymentsRecentTable({
               }
             }}
           >
-            {isMhChecking ? "Checking..." : "Check MH Payment"}
+            {isMhChecking ? "Checking..." : "Check Single MH Payment"}
           </Button>
           <Button
             size="sm"