CREATE TABLE audit_log (
    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    actor_id    UUID,
    actor_email VARCHAR(255),
    tenant_id   UUID,
    action      VARCHAR(100)  NOT NULL,
    resource    VARCHAR(500),
    environment VARCHAR(50),
    source_ip   VARCHAR(45),
    result      VARCHAR(20)   NOT NULL DEFAULT 'SUCCESS',
    metadata    JSONB,
    created_at  TIMESTAMPTZ   NOT NULL DEFAULT now()
);

CREATE INDEX idx_audit_log_tenant ON audit_log (tenant_id, created_at DESC);
CREATE INDEX idx_audit_log_actor ON audit_log (actor_id, created_at DESC);
CREATE INDEX idx_audit_log_action ON audit_log (action, created_at DESC);