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/CloudFolderAggregateResult.schema.js

@@ -40,9 +40,11 @@ exports.CloudFolderAggregateResultSchema = z.object({ _count: z.object({
         userId: z.number(),
         name: z.number(),
         parentId: z.number(),
+        patientId: z.number(),
         parent: z.number(),
         children: z.number(),
         user: z.number(),
+        patient: z.number(),
         files: z.number(),
         createdAt: z.number(),
         updatedAt: z.number()
@@ -50,18 +52,21 @@ exports.CloudFolderAggregateResultSchema = z.object({ _count: z.object({
     _sum: z.object({
         id: z.number().nullable(),
         userId: z.number().nullable(),
-        parentId: z.number().nullable()
+        parentId: z.number().nullable(),
+        patientId: z.number().nullable()
     }).nullable().optional(),
     _avg: z.object({
         id: z.number().nullable(),
         userId: z.number().nullable(),
-        parentId: z.number().nullable()
+        parentId: z.number().nullable(),
+        patientId: z.number().nullable()
     }).nullable().optional(),
     _min: z.object({
         id: z.number().int().nullable(),
         userId: z.number().int().nullable(),
         name: z.string().nullable(),
         parentId: z.number().int().nullable(),
+        patientId: z.number().int().nullable(),
         createdAt: z.date().nullable(),
         updatedAt: z.date().nullable()
     }).nullable().optional(),
@@ -70,6 +75,7 @@ exports.CloudFolderAggregateResultSchema = z.object({ _count: z.object({
         userId: z.number().int().nullable(),
         name: z.string().nullable(),
         parentId: z.number().int().nullable(),
+        patientId: z.number().int().nullable(),
         createdAt: z.date().nullable(),
         updatedAt: z.date().nullable()
     }).nullable().optional() });