-- Agent 采集策略：hostname 为空串代表全局默认，非空为按主机覆盖。 // Logan.Li
CREATE TABLE IF NOT EXISTS monitor_agent_settings (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    hostname VARCHAR(255) NOT NULL DEFAULT '',
    report_interval INTEGER NOT NULL DEFAULT 10,
    config_poll_interval INTEGER NOT NULL DEFAULT 30,
    updated_by VARCHAR(128) NOT NULL DEFAULT '',
    created_at DATETIME NOT NULL,
    updated_at DATETIME NOT NULL
);

CREATE UNIQUE INDEX IF NOT EXISTS uniq_agent_settings_hostname ON monitor_agent_settings (hostname);