Single-user routine checklist app for after-school tasks, with optional timers and per-action parent PIN checks.

• main.tsx: HTTP entrypoint (export default app.fetch)
• backend/index.ts: Hono app + routes + HTML bootstrap
• backend/parentAuth.ts: parent PIN verification helpers
• backend/schedule.ts: global routine schedule store + active routine calculation
• frontend/index.html: app shell
• frontend/index.tsx: React UI with boundary-driven refresh
• shared/routines.ts: routine labels, task lists, and default schedule windows
• shared/types.ts: shared TypeScript contracts

Protected tasks require a 4-digit environment variable:

• Env key: ROUTINE_PARENT_PIN
• Value format: exactly 4 digits (example: 9854)

There is no parent unlock session. Each protected action requires entering the parent PIN.

Routine timing is globally controlled by one Blob key:

• Blob key: routine_schedule_config_v1
• Default timezone: Asia/Tokyo
• Default windows:
  • Morning: 06:30-08:30 (daily)
  • After school: 15:00-19:00 (Mon-Fri)
  • Bedtime: 20:00-21:30 (daily)

On first run, the app auto-creates this config if missing.

The UI does not poll every minute. It refreshes by:

• scheduling one timer for nextChangeAt
• re-syncing on visibilitychange, focus, and online
• coarse 30-minute watchdog refresh

• POST /api/parent/verify: verify parent PIN for a protected action
• GET /api/routine/active: active routine, tasks, and next boundary
• GET /api/routine/schedule: current global schedule config