-- Optional operator-configured regional spend guard. A missing row means
-- unlimited, preserving existing deployments until they opt into a quota.
CREATE TABLE allocation_quotas (
    region TEXT PRIMARY KEY CHECK (region IN ('EU', 'NA')),
    window_started_at TIMESTAMPTZ NOT NULL,
    window_seconds INTEGER NOT NULL CHECK (window_seconds > 0),
    used_allocations INTEGER NOT NULL DEFAULT 0 CHECK (used_allocations >= 0),
    max_allocations INTEGER NOT NULL CHECK (max_allocations > 0),
    updated_at TIMESTAMPTZ NOT NULL
);