- Replace GetSitePropertiesFromSharePoint("", true) with modern
GetSitePropertiesFromSharePointByFilters using null StartIndex
- Use ctx.Clone(adminUrl) instead of creating new AuthenticationManager
for admin URL, eliminating second browser auth prompt
Resolves: UAT issue "Must specify valid information for parsing in the string"
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- SiteInfo record added to Core/Models
- ISiteListService interface with GetSitesAsync signature
- SiteListService derives admin URL via Regex, connects via SessionManager
- Filters to Active sites only, excludes OneDrive personal (-my.sharepoint.com)
- Access denied ServerException wrapped as InvalidOperationException with actionable message
- DeriveAdminUrl marked internal static for unit testability
- InternalsVisibleTo added to AssemblyInfo.cs to expose internal to test project
- 2 DeriveAdminUrl tests pass; full suite: 53 pass, 4 skip, 0 fail
