meraproject/openspec/changes/labor-api-write/design.md

Design: Labor API Write

Modules

Модуль	Назначение
labor_identity.py	X-Acting-Emp-Id, resolve target
labor_day.py	get_work_hours_by_date, calendar days
labor_cache.py	invalidate_time_cache
labor_permissions.py	admin, self+team, delegate (sub-depts)
labor_write.py	PUT endpoints
labor_calendar.py	GET time-calendar, summary, справочники

DB

Прямой MySQL через pymysql; имена колонок через _prefixed_col как в labor.py.

Auth

USER_READER_API_KEY + обязательный X-Acting-Emp-Id на write/permission routes.