新增：openkylin_sign 签署协议

db/migrate/20230420092835_create_openkylin_sign_details.rb

@@ -0,0 +1,14 @@
+class CreateOpenkylinSignDetails < ActiveRecord::Migration[5.2]
+  def change
+    create_table :openkylin_sign_details do |t|
+      t.references :user 
+      t.string :login 
+      t.string :email 
+      t.string :nickname 
+      t.string :phone 
+      t.string :address 
+
+      t.timestamps
+    end
+  end
+end