fix: allow claims without appointment + support post/core multi-tooth input

- Make appointmentId nullable/optional in Prisma Zod schema via @zod rich
  comment so claims can be submitted without an existing appointment
- Convert undefined appointmentId to null in all claim form handlers and
  the backend claim creation endpoint
- Add AI classifier rule for expanding one procedure across multiple
  comma-separated tooth numbers (e.g. "post/core on #23, 24, 25, 26")
- Add "post/core" (slash) alias to CDT lookup maps

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

packages/db/shared/schemas/objects/ClaimUpdateWithoutAppointmentInput.schema.js

@@ -64,6 +64,7 @@ const makeSchema = () => z.object({
     updatedAt: z.union([z.coerce.date(), z.lazy(() => DateTimeFieldUpdateOperationsInput_schema_1.DateTimeFieldUpdateOperationsInputObjectSchema)]).optional(),
     status: z.union([ClaimStatus_schema_1.ClaimStatusSchema, z.lazy(() => EnumClaimStatusFieldUpdateOperationsInput_schema_1.EnumClaimStatusFieldUpdateOperationsInputObjectSchema)]).optional(),
     claimNumber: z.union([z.string(), z.lazy(() => NullableStringFieldUpdateOperationsInput_schema_1.NullableStringFieldUpdateOperationsInputObjectSchema)]).optional().nullable(),
+    preAuthNumber: z.union([z.string(), z.lazy(() => NullableStringFieldUpdateOperationsInput_schema_1.NullableStringFieldUpdateOperationsInputObjectSchema)]).optional().nullable(),
     patient: z.lazy(() => PatientUpdateOneRequiredWithoutClaimsNestedInput_schema_1.PatientUpdateOneRequiredWithoutClaimsNestedInputObjectSchema).optional(),
     user: z.lazy(() => UserUpdateOneWithoutClaimsNestedInput_schema_1.UserUpdateOneWithoutClaimsNestedInputObjectSchema).optional(),
     staff: z.lazy(() => StaffUpdateOneWithoutClaimsNestedInput_schema_1.StaffUpdateOneWithoutClaimsNestedInputObjectSchema).optional(),