d6866cd85b
- Extend DesktopClientReleaseCheckResponse with platform, arch, and channel fields. - Introduce DesktopClientDownloadableRelease and DesktopClientDownloadableReleaseListResponse interfaces for managing downloadable releases. - Implement ListDownloadable method in DesktopClientReleaseService to retrieve downloadable releases based on the specified channel. - Update DesktopClientReleaseCheckResult to include platform, arch, and channel information. - Add resolveInstallerDownloadURL method to handle download URL resolution for releases. - Create new endpoint in DesktopReleaseHandler for listing downloadable releases. - Update router to include the new downloadable releases route. - Enhance tests to cover the new functionality for resolving download URLs and listing downloadable releases.