feat: add Remaining/Third Party columns, toggle PDF viewer, retire CMSP as separate insurance type

- Add remainingBenefit and thirdPartyInsurance columns to Patient; extract both
  from the MassHealth accumulator/member-detail pages during the eligibility
  check and surface them in the eligibility table
- Add an updated-date display and a toggle to suppress the post-check PDF
  viewer popup (default off) on the insurance eligibility page
- Rename CMSP-prefixed PDF filenames and UI copy to MH, since CMSP and MH now
  share the same worker
- Fold CMSP into MassHealth/MH across patient/claim insurance-type dropdowns
  and the chatbot's eligibility routing, since they're the same insurance
- Remove auto-download of saved eligibility PDFs; downloading is now manual

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

packages/db/types/patient-types.ts

@@ -5,7 +5,9 @@ import {
 import { z } from "zod";
 import { makeEnumOptions } from "../utils";
 
-export type Patient = z.infer<typeof PatientUncheckedCreateInputObjectSchema>;
+export type Patient = z.infer<typeof PatientUncheckedCreateInputObjectSchema> & {
+  updatedAt?: string | Date | null;
+};
 
 export const insuranceIdSchema = z.preprocess(
   (val) => {