Add RemoteStorageAuthorization model

db/migrate/20230312212030_create_remote_storage_authorizations.rb

@@ -0,0 +1,17 @@
+class CreateRemoteStorageAuthorizations < ActiveRecord::Migration[7.0]
+  def change
+    create_table :remote_storage_authorizations do |t|
+      t.references :user, null: false, foreign_key: true
+      t.string :token
+      t.text :permissions, array: true, default: [].to_yaml
+      t.string :client_id
+      t.string :redirect_uri
+      t.string :app_name
+      t.datetime :expire_at
+
+      t.timestamps
+    end
+
+    add_index :remote_storage_authorizations, :permissions, using: 'gin'
+  end
+end