- Added a new endpoint to retrieve process materials based on routing details and work order ID.
- Introduced the `getProcessMaterials` function in the `outsourcePurchaseController` to handle the logic for fetching materials.
- Updated the `outsourcePurchaseRoutes` to include the new route for process materials.
- Enhanced the `RegistrationModal` component to toggle material needs and automatically fill materials when required.
(TASK:ERP-019)