CREATE TABLE "market_value_overrides" (
  "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
  "inventory_item_id" uuid NOT NULL REFERENCES "inventory_items"("id"),
  "value_minor" integer NOT NULL,
  "currency" text NOT NULL,
  "reason" text NOT NULL,
  "created_by" uuid NOT NULL REFERENCES "users"("id"),
  "created_at" timestamp with time zone DEFAULT now() NOT NULL
);