-- Replaces the never-wired-up `Ingredient.alternateRecipeId` FK (zero
-- usage anywhere outside schema.prisma — confirmed by repo-wide grep)
-- with a plain boolean flag: whether this ingredient is reasonably
-- makeable at home. Product decision: no ingredient↔recipe linking in
-- the database — the recipe form only nudges the author toward the
-- recipe catalog's own search, pre-filled with the ingredient's name.
ALTER TABLE "ingredients" DROP CONSTRAINT "ingredients_alternate_recipe_fkey";
ALTER TABLE "ingredients" DROP COLUMN "alternate_recipe";
ALTER TABLE "ingredients" ADD COLUMN "reproducible" BOOLEAN NOT NULL DEFAULT false;