Rewrite onboarding emails

Here's a shorter version with one clear action.

Subject: Your first report is 3 minutes away

Hi {{name}}, welcome to Atlas. Connect one data source and you'll see your first report right away.

Connect a data source

Stuck? Reply to this email and a real person will help you today.

I cut the feature list, moved the action above the fold and made the subject promise a specific, quick result. Test it against the current version on 20% of new signups.