After "mix phx.gen.live Biddings Bidding biddings bidding_round:integer amount:integer depot_wish_one:string depot_wish_two:string".

priv/repo/migrations/20260211151210_create_biddings.exs

@@ -0,0 +1,18 @@
+defmodule BeetRoundServer.Repo.Migrations.CreateBiddings do
+  use Ecto.Migration
+
+  def change do
+    create table(:biddings, primary_key: false) do
+      add :id, :binary_id, primary_key: true
+      add :bidding_round, :integer
+      add :amount, :integer
+      add :depot_wish_one, :string
+      add :depot_wish_two, :string
+      add :user_id, references(:users, type: :binary_id, on_delete: :delete_all)
+
+      timestamps(type: :utc_datetime)
+    end
+
+    create index(:biddings, [:user_id])
+  end
+end