feat: add United Ucard eligibility check with OTP + persistent session

Adds a full login/OTP/search/capture flow for United Ucard (OneHealthcareID
-> UHC Dental provider portal), mirroring the United SCO/DDMA pattern:
persistent Chrome profile, OTP polling, member eligibility search, and PDF
capture saved to the patient's Eligibility folder.

Also fixes a validation bug in the browser-safe patient schema where
email/address/city/zipCode/gender/phone were optional but not nullable,
rejecting patient records with null values on those fields during edits
(e.g. "Expected string, received null").

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

apps/Backend/src/queue/queues.ts

@@ -10,6 +10,7 @@ export type SeleniumJobType =
   | "ddma-eligibility-check"
   | "deltains-eligibility-check"
   | "unitedsco-eligibility-check"
+  | "uniteducard-eligibility-check"
   | "cca-eligibility-check"
   | "cca-claim-submit"
   | "cca-preauth-submit"