Add ranking mode

db/migrate/20251114085123_add_ranking_mode_to_contest.rb

@@ -0,0 +1,5 @@
+class AddRankingModeToContest < ActiveRecord::Migration[8.0]
+  def change
+    add_column :contests, :ranking_mode, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_11_10_110151) do
+ActiveRecord::Schema[8.0].define(version: 2025_11_14_085123) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -95,6 +95,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_11_10_110151) do
     t.string "lang", default: "en"
     t.boolean "public", default: false
     t.boolean "offline_form", default: false
+    t.string "ranking_mode"
     t.index ["slug"], name: "index_contests_on_slug", unique: true
     t.index ["user_id"], name: "index_contests_on_user_id"
   end