-- Daily Active User statistics
-- Aggregated from telemetry_events, recalculated nightly
CREATE TABLE IF NOT EXISTS daily_active_stats (
    day DATE PRIMARY KEY,
    dau_count INT NOT NULL DEFAULT 0,
    dau_by_platform JSONB DEFAULT '{}',
    dau_by_region JSONB DEFAULT '{}',
    calculated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    version INT NOT NULL DEFAULT 1
);