chore: add project_id column to translations and jobs tables

* new project_id column will help us identify which project to send
  translations to, and which project a job will live under.
* with this information, we can use multiple projects which is how we
  will handle machine vs human translation -- one project for each.

scripts/actions/translation_workflow/models/job.js

@@ -54,6 +54,10 @@ module.exports = (sequelize, DataTypes) => {
           deferrable: Deferrable.INITIALLY_IMMEDIATE,
         },
       },
+      project_id: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+      },
     },
     {
       createdAt: 'date_created',

scripts/actions/translation_workflow/models/translation.js

@@ -44,6 +44,10 @@ module.exports = (sequelize, DataTypes) => {
           deferrable: Deferrable.INITIALLY_IMMEDIATE,
         },
       },
+      project_id: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+      },
     },
     {
       createdAt: 'date_created',

scripts/actions/translation_workflow/models/typedefs.js

@@ -6,6 +6,7 @@
  * @property {number} status - numeric value of status enum
  * @property {Date} date_created timestamp indicating when record was created
  * @property {Date} date_modified timestamp indicating when record was last updated
+ * @property {string} project_id identifier of project from translation vendor job is associated with
  */
 
 /**
@@ -28,7 +29,8 @@
  * @property {string} status numeric value of status enum
  * @property {number} locale numeric value of locale enum
  * @property {Date} date_created timestamp indicating when record was created
- * @property {Date} date_modified
+ * @property {Date} date_modified timestamp indicating when record was last updated
+ * @property {string} project_id identifier of project from translation vendor translation is associated with
  */
 
 /**