Added table jobs and table devices

db/migrate/20211019152106_create_jobs.rb

@@ -0,0 +1,11 @@
+class CreateJobs < ActiveRecord::Migration[6.1]
+  def change
+    create_table :jobs do |t|
+      t.primary_key :job_id
+      t.json :params
+      t.string :type
+
+      t.timestamps
+    end
+  end
+end