ALTER TABLE "users" ADD COLUMN "preferred_language" text DEFAULT 'en' NOT NULL;--> statement-breakpoint
ALTER TABLE "ai_artifacts" ADD COLUMN "language" text DEFAULT 'en' NOT NULL;--> statement-breakpoint
ALTER TABLE "ticket_messages" ADD COLUMN "language" text DEFAULT 'en' NOT NULL;--> statement-breakpoint
ALTER TABLE "knowledge_entries" ADD COLUMN "language" text DEFAULT 'en' NOT NULL;--> statement-breakpoint
ALTER TABLE "knowledge_entry_revisions" ADD COLUMN "language" text DEFAULT 'en' NOT NULL;