diff --git a/memento-note/prisma/migrations/20260510123000_add_notebook_hierarchy_and_trash/migration.sql b/memento-note/prisma/migrations/20260510123000_add_notebook_hierarchy_and_trash/migration.sql
new file mode 100644
index 0000000..ced0154
--- /dev/null
+++ b/memento-note/prisma/migrations/20260510123000_add_notebook_hierarchy_and_trash/migration.sql
@@ -0,0 +1,18 @@
+-- AlterTable
+ALTER TABLE "Label" ADD COLUMN "type" TEXT NOT NULL DEFAULT 'user';
+
+-- AlterTable
+ALTER TABLE "UserAISettings" ADD COLUMN "autoSave" BOOLEAN NOT NULL DEFAULT true;
+
+-- AlterTable
+ALTER TABLE "Notebook" ADD COLUMN "parentId" TEXT,
+ADD COLUMN "trashedAt" TIMESTAMP(3);
+
+-- CreateIndex
+CREATE INDEX "Notebook_parentId_idx" ON "Notebook"("parentId");
+
+-- CreateIndex
+CREATE INDEX "Notebook_trashedAt_idx" ON "Notebook"("trashedAt");
+
+-- AddForeignKey
+ALTER TABLE "Notebook" ADD CONSTRAINT "Notebook_parentId_fkey" FOREIGN KEY ("parentId") REFERENCES "Notebook"("id") ON DELETE CASCADE ON UPDATE CASCADE;