Update description of row of migrated credits

Author: jahooma

packages/billing/src/__tests__/subscription.test.ts

@@ -359,8 +359,14 @@ describe('subscription', () => {
       })
 
       expect(captures.updateSets).toHaveLength(2)
-      expect(captures.updateSets[0]).toEqual({ balance: 0 })
-      expect(captures.updateSets[1]).toEqual({ balance: 0 })
+      expect(captures.updateSets[0]).toEqual({
+        balance: 0,
+        description: 'Migrated 300 credits to subscribe-migrate-sub-123',
+      })
+      expect(captures.updateSets[1]).toEqual({
+        balance: 0,
+        description: 'Migrated 200 credits to subscribe-migrate-sub-123',
+      })
 
       expect(captures.insertValues).toHaveLength(1)
       expect(captures.insertValues[0].principal).toBe(500)

packages/billing/src/subscription.ts

@@ -730,7 +730,10 @@ export async function migrateUnusedCredits(params: {
   for (const grant of unusedGrants) {
     await tx
       .update(schema.creditLedger)
-      .set({ balance: 0 })
+      .set({
+        balance: 0,
+        description: `Migrated ${grant.balance} credits to ${operationId}`,
+      })
       .where(eq(schema.creditLedger.operation_id, grant.operation_id))
   }