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/results/PatientFindFirstResult.schema.js

@@ -52,9 +52,11 @@ exports.PatientFindFirstResultSchema = z.nullable(z.object({
     policyHolder: z.string().optional(),
     allergies: z.string().optional(),
     medicalConditions: z.string().optional(),
+    preferredLanguage: z.string().optional(),
     status: z.unknown(),
     userId: z.number().int(),
     createdAt: z.date(),
+    updatedAt: z.date(),
     user: z.unknown(),
     appointments: z.array(z.unknown()),
     procedures: z.array(z.unknown()),
@@ -62,5 +64,7 @@ exports.PatientFindFirstResultSchema = z.nullable(z.object({
     groups: z.array(z.unknown()),
     payment: z.array(z.unknown()),
     communications: z.array(z.unknown()),
-    documents: z.array(z.unknown())
+    documents: z.array(z.unknown()),
+    conversation: z.unknown().optional(),
+    cloudFolders: z.array(z.unknown())
 }));