Adds a new API call (`getAllStockPiking`) to retrieve stock picking records from the backend.
Refactors stock picking data models:
- Renames models for better clarity (e.g., `StockPickingResponse` to `StockPickingResponseModel`).
- Makes all model fields nullable to handle varying API responses gracefully.
- Introduces specific nested models (`StockPickingCompanyModel`, `StockPickingPartnerModel`, `StockPickingLocationModel`, `StockPickingTypeModel`) for related entities, enhancing type safety and data structure.
Integrates the new API call into `ReceptionPageModel` and introduces distinct loading states (`loadingUser`, `loadingReceptions`) for improved UI feedback.
Removes the dedicated `HomePage` and its associated model files.
Configures `ReceptionPage` as the new default landing page after successful login and product form submission. Updates navigation and state management dependencies to direct users to the primary operational interface upon entry.
