feat: DentaQuest eligibility — PLAN_NOT_ACCEPTED status, DOB save, no retries

- Add PLAN_NOT_ACCEPTED to PatientStatus enum (prisma schema + db push)
- Selenium: return "plan not accepted" eligibility text instead of collapsing to inactive
- Backend processor: map "plan not accepted" → PLAN_NOT_ACCEPTED, fix insuranceProvider label
- _shared.ts: save DOB for existing patients when field is currently empty
- Frontend: show amber "Plan Not Accepted" badge in patient table and detail panel
- patient-form.tsx: display "Plan Not Accepted" label in status dropdown
- BullMQ: set attempts=1 (no retry on selenium failure)
- DDMA: remove first/last name from search (member ID + DOB only)
- patient-types.ts: allow alphanumeric insurance IDs

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

packages/db/prisma/schema.prisma

@@ -43,7 +43,7 @@ model Patient {
   id                Int                    @id @default(autoincrement())
   firstName         String
   lastName          String
-  dateOfBirth       DateTime               @db.Date
+  dateOfBirth       DateTime?              @db.Date
   gender            String
   phone             String
   email             String?
@@ -76,6 +76,7 @@ enum PatientStatus {
   ACTIVE
   INACTIVE
   UNKNOWN
+  PLAN_NOT_ACCEPTED
 }
 
 model Appointment {