-- Rich per-node metrics tapped from the workspace's Beszel hub (beyond the basic
-- heartbeat health). One latest snapshot per node: queryable scalar columns drive
-- the fleet card widgets + the rules engine; the JSONB `data` holds the full
-- snapshot (per-core CPU, per-GPU, per-interface network, per-container) for the
-- per-node monitor page. History for charts is proxied live from the hub.
CREATE TABLE node_metrics (
    node_id         UUID PRIMARY KEY REFERENCES nodes (id) ON DELETE CASCADE,
    updated_at      TIMESTAMPTZ NOT NULL DEFAULT now(),
    cpu_pct         DOUBLE PRECISION,
    mem_pct         DOUBLE PRECISION,
    disk_pct        DOUBLE PRECISION,
    gpu_pct         DOUBLE PRECISION,
    temp_max        DOUBLE PRECISION,
    net_sent_ps     BIGINT,
    net_recv_ps     BIGINT,
    disk_read_ps    BIGINT,
    disk_write_ps   BIGINT,
    load1           DOUBLE PRECISION,
    container_count INTEGER,
    data            JSONB NOT NULL DEFAULT '{}'::jsonb
);