Added JetBrains Rider IDE configuration files and a backup for Beam.Api.csproj. Updated aeqw89.Beam project version to 2.7.0 and package references, including Selenium.WebDriver and System.IO.Hashing. Enhanced RelationalDataProvider to support NextSibling and PreviousSibling relations and configurable traversal distance.
- Removed obsolete data providers: `AnchorCollectionDataProvider`, `ContentsDataProvider`, and others, consolidating logic into new composable providers.
- Added `ComposeDataProviders`, `SelectDataProvider`, and `RelationalDataProvider` for improved flexibility and reusability.
- Introduced `IManySelectionComposableDataProvider` interface to support multiple-node selection.
- Enhanced `UnitDownloader` with more robust progress tracking.
- Updated package references and project dependencies for consistency.
- Improved error handling in `StealthConfig` initialization for better fallback on browser drivers.
- Incremented project version to 2.4.5.
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