feat: implement rollback functionality with UI components and database schema updates

- Added ShowEnv and ShowRollbackSettings components for displaying and configuring rollback settings.
- Implemented ShowRollbacks component to list and manage rollbacks for applications.
- Created rollback database schema and updated application schema to include rollback settings.
- Added API routes for managing rollbacks, including fetching, creating, and deleting rollbacks.
- Integrated rollback functionality into the application deployment process.

packages/server/src/db/schema/index.ts

@@ -32,3 +32,4 @@ export * from "./preview-deployments";
 export * from "./ai";
 export * from "./account";
 export * from "./schedule";
+export * from "./rollbacks";