feat: add Copayment and Adjustment columns to payments table

- Added copayment and adjustment fields (Decimal, default 0) to Payment
  model in schema and directly to DB via ALTER TABLE
- Added PATCH /api/payments/:id/copayment and /adjustment routes
- Added inline-editable Copayment and Adjustment columns after MH Paid
  with same click-to-edit format; Copayment in blue, Adjustment in orange

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

packages/db/shared/schemas/objects/PaymentOrderByWithAggregationInput.schema.ts

@@ -18,6 +18,9 @@ const makeSchema = () => z.object({
   totalPaid: SortOrderSchema.optional(),
   totalAdjusted: SortOrderSchema.optional(),
   totalDue: SortOrderSchema.optional(),
+  mhPaidAmount: z.union([SortOrderSchema, z.lazy(() => SortOrderInputObjectSchema)]).optional(),
+  copayment: SortOrderSchema.optional(),
+  adjustment: SortOrderSchema.optional(),
   status: SortOrderSchema.optional(),
   notes: z.union([SortOrderSchema, z.lazy(() => SortOrderInputObjectSchema)]).optional(),
   icn: z.union([SortOrderSchema, z.lazy(() => SortOrderInputObjectSchema)]).optional(),