feat: Add onboarding flow (#7212)

Github issue / Community forum post (link here to close automatically):

packages/cli/src/databases/migrations/common/1695128658538-AddWorkflowMetadata.ts

@@ -0,0 +1,11 @@
+import type { MigrationContext, ReversibleMigration } from '@db/types';
+
+export class AddWorkflowMetadata1695128658538 implements ReversibleMigration {
+	async up({ schemaBuilder: { addColumns, column } }: MigrationContext) {
+		await addColumns('workflow_entity', [column('meta').json]);
+	}
+
+	async down({ schemaBuilder: { dropColumns } }: MigrationContext) {
+		await dropColumns('workflow_entity', ['meta']);
+	}
+}