- Updated tests in `useShoppingLists`, `useWatchedItems`, and various components to use `waitFor` for asynchronous assertions.
- Enhanced error handling in `errorHandler` middleware tests to include validation errors and status codes.
- Modified `AuthView`, `ProfileManager.Auth`, and `ProfileManager.Authenticated` tests to check for `AbortSignal` in API calls.
- Removed duplicate assertions in `auth.routes.test`, `budget.routes.test`, and `gamification.routes.test`.
- Introduced reusable logger matcher in `budget.routes.test`, `deals.routes.test`, `flyer.routes.test`, and `user.routes.test`.
- Simplified API client mock in `aiApiClient.test` to handle token overrides correctly.
- Removed unused `apiUtils.ts` file.
- Added `ApiContext` and `ApiProvider` for better API client management in React components.
- Implement tests for `useFlyers`, `useMasterItems`, `useModal`, `useUserData` hooks to ensure correct functionality and error handling.
- Create tests for `fileUpload.middleware` and `validation.middleware` to validate file uploads and request data.
- Add tests for `AddressForm` and `AuthView` components to verify rendering, user interactions, and API calls.
- Develop tests for `deals.routes` to check authentication and response for best prices on watched items.
