Closes#1039
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## Summary by CodeRabbit
- **New Features**
- Workspaces now include additional status indicator: `isPastDue`.
- New pages for handling workspaces that are past due. Meaning, an
invoice is unpaid.
- **Bug Fixes**
- Fixed issues with workspace status checks and redirections for
suspended workspaces.
- **Refactor**
- Refactored workspace-related API functions to accommodate new status
fields.
- Improved permission checks for reading and writing typebots based on
workspace status.
- **Chores**
- Database schema updated to include `isPastDue` field for workspaces.
- Implemented new webhook event handling for subscription and invoice
updates.
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BREAKING CHANGE: Stripe environment variables simplified. Check out the
new configs to adapt your existing system.
Closes#906
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### Summary by CodeRabbit
**New Features:**
- Introduced a usage-based billing system, providing more flexibility
and options for users.
- Integrated with Stripe for a smoother and more secure payment process.
- Enhanced the user interface with improvements to the billing,
workspace, and pricing pages for a more intuitive experience.
**Improvements:**
- Simplified the billing logic, removing additional chats and yearly
billing for a more streamlined user experience.
- Updated email notifications to keep users informed about their usage
and limits.
- Improved pricing and currency formatting for better clarity and
understanding.
**Testing:**
- Updated tests and specifications to ensure the reliability of new
features and improvements.
**Note:** These changes aim to provide a more flexible and user-friendly
billing system, with clearer pricing and improved notifications. Users
should find the new system more intuitive and easier to navigate.
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