add trashable concern on user

db/migrate/20220731232807_add_deleted_at_to_user.rb

@@ -0,0 +1,5 @@
+class AddDeletedAtToUser < ActiveRecord::Migration[7.0]
+  def change
+    add_column :users, :deleted_at, :datetime
+  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[7.0].define(version: 2022_07_25_225343) do
+ActiveRecord::Schema[7.0].define(version: 2022_07_31_232807) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -147,6 +147,7 @@ ActiveRecord::Schema[7.0].define(version: 2022_07_25_225343) do
     t.datetime "updated_at", null: false
     t.string "avatar_url"
     t.string "roles", default: [], array: true
+    t.datetime "deleted_at"
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end