refactor otp

db/migrate/20260930061927_create_otp_challenges.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class CreateOtpChallenges < ActiveRecord::Migration[8.1]
+  def change
+    create_table :otp_challenges do |t|
+      t.string :key, null: false
+      t.integer :version, null: false
+      t.string :nonce, null: false
+      t.integer :attempts, null: false, default: 0
+      t.datetime :expire_at, null: false
+      t.datetime :verified_at
+      t.datetime :created_at, null: false
+
+      t.index %i[key version], unique: true
+    end
+  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[8.1].define(version: 2026_08_19_091500) do
+ActiveRecord::Schema[8.1].define(version: 2026_09_30_061927) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
   enable_extension "pg_catalog.plpgsql"
@@ -322,6 +322,17 @@ ActiveRecord::Schema[8.1].define(version: 2026_08_19_091500) do
     t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true
   end
 
+  create_table "otp_challenges", force: :cascade do |t|
+    t.integer "attempts", default: 0, null: false
+    t.datetime "created_at", null: false
+    t.datetime "expire_at", null: false
+    t.string "key", null: false
+    t.string "nonce", null: false
+    t.datetime "verified_at"
+    t.integer "version", null: false
+    t.index ["key", "version"], name: "index_otp_challenges_on_key_and_version", unique: true
+  end
+
   create_table "search_entries", force: :cascade do |t|
     t.bigint "account_id", null: false
     t.datetime "created_at", null: false