BlogSpotService's constructor throws InvalidOperationException
("SiteSettings.Blog is not configured.") when IOptions<SiteSettings>.Blog
is null, so every request to BlogApiController 500'd resolving the
service — all 3 BlogApiMappedClaimsTests were failing with
InternalServerError.
The mapped-claims fixture never configured SiteSettings (the main
BlogsWebServerFixture does, pointing Blog at a per-run temp dir).
Mirror that: Configure<SiteSettings>(s => s.Blog = <temp dir>)
before AddScoped<BlogSpotService>(). These tests are JSON-only
(AttachFiles short-circuits), but the service must be constructible.
Verified: BlogApiMappedClaimsTests 3/3 green; full Yavsc.Blogs.Tests
37/37 green.
Co-Authored-By: Claude <noreply@anthropic.com>
