feat: BCBS AI column claim fills ADA form, saves to Documents; form fixes

- Claim for column with AI: BCBS patients auto-generate the 2024 ADA form
  (no tab) and save it to the patient's Documents > Claims folder; the
  manual BCBS button saves there too (new POST /api/claims/:id/ada-form)
- Saved BCBS form sets the claim to REVIEW; appointments with a claim
  number or REVIEW/APPROVED status show as claimed (dark gray)
- CDT lookup: "comp on #18 O, 20 O, 21 O" applies composite to every tooth
- BCBS fee schedule (procedureCodesBCBS.json, copied from DDMA prices)
- Office Contact: Legal Name field; "Dental Office Name (DBA)" label
- ADA form: 48 = legal name, DBA, address; 56 = address only; 53 date =
  claim date; 23 and 26 left blank; 43 = No unless appointment notes say
  a prosthesis is replaced (then Yes, with 44 prior date when given)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/db/generated/prisma/schema.prisma

@@ -682,6 +682,9 @@ model OfficeHours {
 model OfficeContact {
   id               Int     @id @default(autoincrement())
   userId           Int     @unique
+  /// Legal (registered) business name — ADA claim form items 48 and 56
+  legalName        String?
+  /// Dental office name as the public knows it (DBA)
   officeName       String?
   receptionistName String?
   dentistName      String?