Configures the ObjectBox ProductEntity to allow assigning IDs. Adds a helper to convert ProductStruct to ProductEntity for easier storage.
Saves scanned products directly to the local ObjectBox store.
Updates the ProductListPage to fetch and display locally stored products from ObjectBox upon initialization.
Includes minor UI adjustments in the scanned product component and scanner page, and fixes loading state handling in HomePageModel.
Integrates Objectbox database initialization into the main application startup process.
Adds `path` and `path_provider` as direct dependencies, which are typically required for Objectbox to locate the database directory.
