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/results/ProcedureTimeslotGroupByResult.schema.ts

@@ -0,0 +1,28 @@
+import * as z from 'zod';
+export const ProcedureTimeslotGroupByResultSchema = z.array(z.object({
+  id: z.number().int(),
+  userId: z.number().int(),
+  data: z.unknown(),
+  _count: z.object({
+    id: z.number(),
+    userId: z.number(),
+    data: z.number(),
+    user: z.number()
+  }).optional(),
+  _sum: z.object({
+    id: z.number().nullable(),
+    userId: z.number().nullable()
+  }).nullable().optional(),
+  _avg: z.object({
+    id: z.number().nullable(),
+    userId: z.number().nullable()
+  }).nullable().optional(),
+  _min: z.object({
+    id: z.number().int().nullable(),
+    userId: z.number().int().nullable()
+  }).nullable().optional(),
+  _max: z.object({
+    id: z.number().int().nullable(),
+    userId: z.number().int().nullable()
+  }).nullable().optional()
+}));