Move direct URN->CivitAI download handling into the frontend and enrich backend metadata. Removed server-side immediate URN download exposure and adjusted comment numbering. Backend now selects a primary file from resolved CivitAI model info, includes model_id, version_id, size, and a modelVersionId query on model URLs.
Frontend: add renderDownloadSourceSection to render download buttons and CivitAI model-card links, display file sizes, and format names. Store missingModels for later updates; render a placeholder URN download section while resolving; when URN resolution returns, inject civitai info into the missing entry, build a download_source object, replace the placeholder with the rendered download UI, and attach the download button handler. Improved error handling and model URL construction to include modelVersionId when available.
Dariusz L
b64597fd3f