Daily 18:02 MSK job: captures eligible projects state into
project_routing_snapshots for tomorrow date. Filters frozen tenants,
preflight_blocked projects, weekday_mask. Carries effective_daily_limit_today
(R-11/OPEN-5 var A). Idempotent via INSERT ON CONFLICT DO NOTHING.
Spec section 4.2.2.
Дмитрий