Integrated Jellyfin.CodeAnalysis as a project reference across core and test projects. Added centrally managed code analysis and style enforcement packages (IDisposableAnalyzers, Microsoft.CodeAnalysis.BannedApiAnalyzers, SerilogAnalyzer, SmartAnalyzers.MultithreadingAnalyzer, StyleCop.Analyzers) to all affected projects. Updated dependency graphs, asset files, and build scripts to ensure analyzers run during builds, enforcing consistent code quality and style rules throughout the codebase. Removed custom warning properties to rely on analyzer enforcement.
Refactored all C# test files to use explicit namespace declarations and moved all using directives inside the namespace block for consistency. Updated assembly info and cache files to reflect the new build. Adjusted MvcTestingAppManifest.json to use fully qualified assembly names. No functional changes; all updates are related to code style, organization, and project metadata.
wjones