add user scaffold

db/schema.rb

@@ -10,8 +10,15 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 0) do
+ActiveRecord::Schema[7.0].define(version: 2022_02_27_172543) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "users", force: :cascade do |t|
+    t.string "username", limit: 14, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["username"], name: "index_users_on_username"
+  end
+
 end