CREATE TABLE "audit_logs" (
    "id" TEXT NOT NULL,
    "actor_id" TEXT,
    "action" TEXT NOT NULL,
    "entity_type" TEXT NOT NULL,
    "entity_id" TEXT,
    "entity_label" TEXT,
    "summary" TEXT NOT NULL,
    "metadata" JSONB,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "audit_logs_pkey" PRIMARY KEY ("id")
);

CREATE INDEX "audit_logs_created_at_idx" ON "audit_logs"("created_at");

ALTER TABLE "audit_logs"
ADD CONSTRAINT "audit_logs_actor_id_fkey"
FOREIGN KEY ("actor_id") REFERENCES "users"("id")
ON DELETE SET NULL ON UPDATE CASCADE;