[spelech]

Summary of Changes

• Repository Line Coverage: Raised to 80.20% (7,401 / 9,228 lines), up from 75.01%.
• Repository Branch Coverage: Raised to 62.85% (2,697 / 4,291 branches), up from 55.90%.
• UI Components & ViewModels: Every ViewModel and UI control is now above 80.0% coverage (between 80.8% and 100.0%).
• New Unit Test Suites:
  • \OllamaModelServiceTests.cs: Full coverage for endpoints, error recovery, proxy + daemon fallback deletions, and VRAM purge.
  • \HuggingFaceSearchViewModelTests.cs: Modality matrices, hardware badge recomputation, quantization model inspection.
  • \CivitaiSearchViewModelTests.cs: Search queries, hardware fit verdict filtering, download dispatch.
  • \OllamaLibraryViewModelTests.cs: Streaming progress parsing, model deletion confirmation, KV cache estimation slider.
• Expanded Suites:
  • \CanIRunItViewModelTests.cs: Sizing calculation checks across all LLM, Diffusion, Video, Audio, and 3D presets.
  • \MainViewModelTests.cs: Video asset selection, gallery parsing, playback and loop toggle controls.
  • \BrowserLauncherTests.cs, \SearchServicesTests.cs, \ToolDiscoveryServiceTests.cs, \ServicesAndEngineManagerTests.cs.
• All 517 unit tests passing cleanly with 0 failures.