Add brainstorming spec for: sidebar OBSERVE→MANAGE rename + Credits & Billing
link + Hire-an-Expert footer button; new /billing page with extracted Dograh
Model Credits card + CTAs; Top-up / Hire-an-Expert / Enterprise intake modals
with inline math captcha; and a workflow-builder Hire-an-Expert nudge. Frontend
only; submissions fire PostHog events via a submitLead() seam for a future
MongoDB endpoint. Also gitignore .superpowers/ brainstorm mockups.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
