Pro and Max subscriptions and MCP setup

Pro and Max subscription billing with a 7-day Max trial, smarter MCP onboarding, and Gbrain local sync on Connections.

Pro and Max subscriptions on Settings -> Billing -- monthly/annual toggle, Stripe checkout, and subscription portal; navbar shows tier, trial countdown, and billing CTA for subscription users.
7-day Max trial on signup when subscriptions are enabled (replaces the signup-credits welcome flow).
Login and register -- featured Claude MCP connect card and an agent picker for other one-click hosts.
MCP setup -- choose how much the agent saves back to Unabyss (everything, important only, or nothing); finishing setup offers a query preview of what Unabyss already learned.
Gbrain local sync on /connections -- Local instance tab collects gbrain URL and write bearer, builds a ~/.gbrain/.unabyss-sync state file with one Copy action.

MCP setup runs onboarding-first -- connect at least two apps, choose what to save back, add the system prompt, then browse skills.
MCP connect popups open with a locked overlay until you finish or return to Unabyss; connected-via-agent confirmation appears as each app connects.
Onboarding tuned for mobile -- swipeable "Your data stays yours" cards, four featured apps, and no "press Space" hint on touch devices.

Onboarding step cards no longer overflow on narrow mobile screens.
Pipedream apps (Gmail, Google Drive, Google Calendar, Google Ads, HubSpot) flip to Connected without a page refresh.
Google login links a verified Google email to an existing email/password account on first sign-in.

Earlier updates