CREATE TABLE scenario_rules (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  tenant_id BIGINT UNSIGNED NOT NULL,
  scenario_id BIGINT UNSIGNED NOT NULL,
  rule_key VARCHAR(64) NOT NULL,
  name VARCHAR(128) NOT NULL,
  `condition` JSON NOT NULL,
  actions JSON NOT NULL,
  priority INT NOT NULL DEFAULT 0,
  status VARCHAR(24) NOT NULL DEFAULT 'active',
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_scenario_rules_key (scenario_id, rule_key),
  KEY idx_scenario_rules_active (tenant_id, scenario_id, status, priority),
  CONSTRAINT fk_scenario_rules_tenant FOREIGN KEY (tenant_id) REFERENCES tenants(id),
  CONSTRAINT fk_scenario_rules_scenario FOREIGN KEY (scenario_id) REFERENCES scenarios(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;