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/PaymentCreateManyPatientInput.schema.js

@@ -47,6 +47,7 @@ const makeSchema = () => z.object({
     claimId: z.number().int().optional().nullable(),
     userId: z.number().int(),
     updatedById: z.number().int().optional().nullable(),
+    npiProviderId: z.number().int().optional().nullable(),
     totalBilled: z.union([
         z.number(),
         z.string(),
@@ -83,6 +84,33 @@ const makeSchema = () => z.object({
     ]).refine((v) => (0, decimal_helpers_1.isValidDecimalInput)(v), {
         message: "Field 'totalDue' must be a Decimal",
     }),
+    mhPaidAmount: z.union([
+        z.number(),
+        z.string(),
+        z.instanceof(decimal_js_1.default),
+        z.instanceof(prisma_1.Prisma.Decimal),
+        decimal_helpers_1.DecimalJSLikeSchema,
+    ]).refine((v) => (0, decimal_helpers_1.isValidDecimalInput)(v), {
+        message: "Field 'mhPaidAmount' must be a Decimal",
+    }).optional().nullable(),
+    copayment: z.union([
+        z.number(),
+        z.string(),
+        z.instanceof(decimal_js_1.default),
+        z.instanceof(prisma_1.Prisma.Decimal),
+        decimal_helpers_1.DecimalJSLikeSchema,
+    ]).refine((v) => (0, decimal_helpers_1.isValidDecimalInput)(v), {
+        message: "Field 'copayment' must be a Decimal",
+    }).optional(),
+    adjustment: z.union([
+        z.number(),
+        z.string(),
+        z.instanceof(decimal_js_1.default),
+        z.instanceof(prisma_1.Prisma.Decimal),
+        decimal_helpers_1.DecimalJSLikeSchema,
+    ]).refine((v) => (0, decimal_helpers_1.isValidDecimalInput)(v), {
+        message: "Field 'adjustment' must be a Decimal",
+    }).optional(),
     status: PaymentStatus_schema_1.PaymentStatusSchema.optional(),
     notes: z.string().optional().nullable(),
     icn: z.string().optional().nullable(),