diff --git a/memento-note/prisma/migrations/20260426150000_add_missing_settings_and_fix_constraints/migration.sql b/memento-note/prisma/migrations/20260426150000_add_missing_settings_and_fix_constraints/migration.sql
index 9525249..bc7925b 100644
--- a/memento-note/prisma/migrations/20260426150000_add_missing_settings_and_fix_constraints/migration.sql
+++ b/memento-note/prisma/migrations/20260426150000_add_missing_settings_and_fix_constraints/migration.sql
@@ -1,15 +1,21 @@
 -- AlterTable: UserAISettings
 -- Add missing columns: autoLabeling, languageDetection
-ALTER TABLE "UserAISettings" ADD COLUMN IF NOT EXISTS "autoLabeling" BOOLEAN NOT NULL DEFAULT true;
-ALTER TABLE "UserAISettings" ADD COLUMN IF NOT EXISTS "languageDetection" BOOLEAN NOT NULL DEFAULT true;
+DO $$ BEGIN
+  ALTER TABLE "UserAISettings" ADD COLUMN "autoLabeling" BOOLEAN NOT NULL DEFAULT true;
+EXCEPTION WHEN duplicate_column THEN NULL;
+END $$;
 
--- Add missing indexes
+DO $$ BEGIN
+  ALTER TABLE "UserAISettings" ADD COLUMN "languageDetection" BOOLEAN NOT NULL DEFAULT true;
+EXCEPTION WHEN duplicate_column THEN NULL;
+END $$;
+
+-- Add missing indexes (idempotent)
 CREATE INDEX IF NOT EXISTS "UserAISettings_memoryEcho_idx" ON "UserAISettings"("memoryEcho");
 CREATE INDEX IF NOT EXISTS "UserAISettings_aiProvider_idx" ON "UserAISettings"("aiProvider");
 CREATE INDEX IF NOT EXISTS "UserAISettings_memoryEchoFrequency_idx" ON "UserAISettings"("memoryEchoFrequency");
 CREATE INDEX IF NOT EXISTS "UserAISettings_preferredLanguage_idx" ON "UserAISettings"("preferredLanguage");
 
--- Add missing Note indexes
 CREATE INDEX IF NOT EXISTS "Note_isPinned_idx" ON "Note"("isPinned");
 CREATE INDEX IF NOT EXISTS "Note_isArchived_idx" ON "Note"("isArchived");
 CREATE INDEX IF NOT EXISTS "Note_order_idx" ON "Note"("order");
@@ -17,44 +23,42 @@ CREATE INDEX IF NOT EXISTS "Note_reminder_idx" ON "Note"("reminder");
 CREATE INDEX IF NOT EXISTS "Note_userId_idx" ON "Note"("userId");
 CREATE INDEX IF NOT EXISTS "Note_userId_notebookId_idx" ON "Note"("userId", "notebookId");
 
--- Add missing Label indexes
 CREATE INDEX IF NOT EXISTS "Label_notebookId_idx" ON "Label"("notebookId");
 CREATE INDEX IF NOT EXISTS "Label_userId_idx" ON "Label"("userId");
 
--- Add missing Notebook indexes
 CREATE INDEX IF NOT EXISTS "Notebook_userId_order_idx" ON "Notebook"("userId", "order");
 CREATE INDEX IF NOT EXISTS "Notebook_userId_idx" ON "Notebook"("userId");
 
--- Add missing AiFeedback indexes
 CREATE INDEX IF NOT EXISTS "AiFeedback_noteId_idx" ON "AiFeedback"("noteId");
 CREATE INDEX IF NOT EXISTS "AiFeedback_userId_idx" ON "AiFeedback"("userId");
 CREATE INDEX IF NOT EXISTS "AiFeedback_feature_idx" ON "AiFeedback"("feature");
 
--- Add missing MemoryEchoInsight indexes and unique constraint
 CREATE INDEX IF NOT EXISTS "MemoryEchoInsight_userId_insightDate_idx" ON "MemoryEchoInsight"("userId", "insightDate");
 CREATE INDEX IF NOT EXISTS "MemoryEchoInsight_userId_dismissed_idx" ON "MemoryEchoInsight"("userId", "dismissed");
 
+CREATE INDEX IF NOT EXISTS "NoteShare_userId_idx" ON "NoteShare"("userId");
+CREATE INDEX IF NOT EXISTS "NoteShare_status_idx" ON "NoteShare"("status");
+CREATE INDEX IF NOT EXISTS "NoteShare_sharedBy_idx" ON "NoteShare"("sharedBy");
+
 -- Add unique constraint for MemoryEchoInsight (idempotent)
 DO $$ BEGIN
   ALTER TABLE "MemoryEchoInsight" ADD CONSTRAINT "MemoryEchoInsight_userId_insightDate_key" UNIQUE ("userId", "insightDate");
 EXCEPTION WHEN duplicate_object THEN NULL;
 END $$;
 
--- Add missing NoteShare indexes
-CREATE INDEX IF NOT EXISTS "NoteShare_userId_idx" ON "NoteShare"("userId");
-CREATE INDEX IF NOT EXISTS "NoteShare_status_idx" ON "NoteShare"("status");
-CREATE INDEX IF NOT EXISTS "NoteShare_sharedBy_idx" ON "NoteShare"("sharedBy");
-
 -- Add unique constraint for NoteShare (idempotent)
 DO $$ BEGIN
   ALTER TABLE "NoteShare" ADD CONSTRAINT "NoteShare_noteId_userId_key" UNIQUE ("noteId", "userId");
 EXCEPTION WHEN duplicate_object THEN NULL;
 END $$;
 
--- Fix Note.notebookId foreign key to use ON DELETE SET NULL
+-- Fix Note.notebookId foreign key to use ON DELETE SET NULL (idempotent)
 DO $$ BEGIN
   ALTER TABLE "Note" DROP CONSTRAINT "Note_notebookId_fkey";
 EXCEPTION WHEN undefined_object THEN NULL;
 END $$;
 
-ALTER TABLE "Note" ADD CONSTRAINT "Note_notebookId_fkey" FOREIGN KEY ("notebookId") REFERENCES "Notebook"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+DO $$ BEGIN
+  ALTER TABLE "Note" ADD CONSTRAINT "Note_notebookId_fkey" FOREIGN KEY ("notebookId") REFERENCES "Notebook"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+EXCEPTION WHEN duplicate_object THEN NULL;
+END $$;