✨ Introduce bot v2 in builder (#328)

Also, the new engine is the default for updated typebots for viewer

Closes #211

apps/builder/src/pages/api/typebots/[typebotId].ts

@@ -92,9 +92,13 @@ const handler = async (req: NextApiRequest, res: NextApiResponse) => {
 
     const updates = {
       ...omit(data, 'id', 'createdAt', 'updatedAt'),
+      version: '3',
       theme: data.theme ?? undefined,
       settings: data.settings ?? undefined,
       resultsTablePreferences: data.resultsTablePreferences ?? undefined,
+      groups: data.groups ?? [],
+      variables: data.variables ?? [],
+      edges: data.edges ?? [],
     } satisfies Prisma.TypebotUpdateInput
 
     const updatedTypebot = await prisma.typebot.update({