- task schema: id, name, status, taskStatus, type, date?, repeat?, start?, end?
- status: active, inactive
- type: single (show date), repeat (show repeat, start, end)
- type(single, !date): just create task
- type(single, date): create schema, schema creates task
- type(repeat, daily/weekly/2weekly/4weekly/monthly): create schema, schema creates tasks
- type(repeat, days): + icon (add input:date), add multiple dates, like single+date in bulk, create schema, schema creates tasks, bin icon (remove date)
- schema: creates tasks in period, schema update and delete affects only tasks in period (no-past), start(today if null), delete schema (if end < today)
- schema create: create tasks in period
- schema update: remove and create task in period (if task ref schema)
- schema delete: remove tasks in period (if task ref schema)
- scheduler: execute 3:00, create task (if date=today), remove schemas (if end < today)

- router - /schemas, /schemas/create, /schemas/:id
- list page: list all schemas (name, repeat label, edit, delete), navigation (create, refresh)
- create page: form (name, status, taskStatus, type, date, repeat, weekday/monthday, start, end), buttons(save, abort)
- edit page: like create but with current values