feat(billing): integrate Stripe for subscription management and billing access

- Added billing-related fields to the User model in the database.
- Implemented functions for managing billing access, including trial periods and subscription statuses.
- Created new billing utility functions for Stripe integration.
- Updated onboarding page to include billing overview and workspace creation eligibility.
- Enhanced route access checks to require billing access for certain actions.
- Implemented cleanup scripts for expired billing workspaces and associated media.
- Updated header component to conditionally show app navigation based on billing access.
- Added new migrations for billing-related database changes.

package.json

@@ -44,6 +44,7 @@
     "react-window": "^2.2.7",
     "sharp": "^0.34.5",
     "sonner": "^2.0.7",
+    "stripe": "^20.4.1",
     "tailwind-merge": "^3.4.0",
     "tus-js-client": "^4.3.1",
     "tw-animate-css": "^1.4.0"