refactor(bot): replace reminder polling with scheduled dispatches

apps/bot/src/aws-scheduled-dispatch-scheduler.test.ts

@@ -0,0 +1,46 @@
+import { describe, expect, test } from 'bun:test'
+
+import { Temporal } from '@household/domain'
+
+import { createAwsScheduledDispatchScheduler } from './aws-scheduled-dispatch-scheduler'
+
+describe('createAwsScheduledDispatchScheduler', () => {
+  test('creates one-shot EventBridge schedules targeting the bot lambda', async () => {
+    const calls: unknown[] = []
+    const scheduler = createAwsScheduledDispatchScheduler({
+      region: 'eu-central-1',
+      targetLambdaArn: 'arn:aws:lambda:eu-central-1:123:function:bot',
+      roleArn: 'arn:aws:iam::123:role/scheduler',
+      groupName: 'dispatches',
+      client: {
+        send: async (command) => {
+          calls.push(command.input)
+          return {}
+        }
+      }
+    })
+
+    const result = await scheduler.scheduleOneShotDispatch({
+      dispatchId: 'dispatch-1',
+      dueAt: Temporal.Instant.from('2026-03-24T12:00:00Z')
+    })
+
+    expect(result.providerDispatchId).toContain('dispatch-dispatch-1-')
+    expect(calls[0]).toMatchObject({
+      GroupName: 'dispatches',
+      ScheduleExpression: 'at(2026-03-24T12:00:00Z)',
+      ActionAfterCompletion: 'DELETE',
+      FlexibleTimeWindow: {
+        Mode: 'OFF'
+      },
+      Target: {
+        Arn: 'arn:aws:lambda:eu-central-1:123:function:bot',
+        RoleArn: 'arn:aws:iam::123:role/scheduler',
+        Input: JSON.stringify({
+          source: 'household.scheduled-dispatch',
+          dispatchId: 'dispatch-1'
+        })
+      }
+    })
+  })
+})