## Summary
Implements billing infrastructure for team workspaces, separate from
legacy personal billing.
## Changes
- **Billing abstraction**: New `useBillingContext` composable that
switches between legacy (personal) and workspace billing based on
context
- **Workspace subscription flows**: Pricing tables, plan transitions,
cancellation dialogs, and payment preview components for workspace
billing
- **Top-up credits**: Workspace-specific top-up dialog with polling for
payment confirmation
- **Workspace API**: Extended with billing endpoints (subscriptions,
invoices, payment methods, credits top-up)
- **Workspace switcher**: Now displays tier badges for each workspace
- **Subscribe polling**: Added polling mechanisms
(`useSubscribePolling`, `useTopupPolling`) for async payment flows
## Review Focus
- Billing flow correctness for workspace vs legacy contexts
- Polling timeout and error handling in payment flows
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8508-Feat-workspaces-6-billing-2f96d73d365081f69f65c1ddf369010d)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
## Summary
Add team workspace member management and invite system.
## Changes
- Add members panel with role management (owner/admin/member) and member
removal
- Add invite system with email invites, pending invite display, and
revoke functionality
- Add invite URL loading for accepting invites
- Add subscription panel updates for member management
- Add i18n translations for member and invite features
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8245-Workspaces-4-members-invites-2f06d73d36508176b2caf852a1505c4a)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: GitHub Action <action@github.com>
