Implement fallback mechanisms for YouTube video data and add startup
validation for blog post ordering.
- Add `loadVideosJSON` to persist and reload video data from disk.
- Update `refreshVideos` to retain existing local videos if the YouTube
API returns an empty response.
- Add `validateBlogOrdering` to perform a health check on blog post
sequence during startup.
- Call video loading and blog validation in `main`.
Implement client-side sorting for blog post lists to ensure they are
displayed in descending order by numeric ID. This prevents issues
where API response ordering or file modification timestamps might
cause older posts to appear newer than recent ones.
Also add backend tests to verify blog ordering logic.
Refactor the blog listing logic to use a canonical numeric ID when available. This ensures consistent identity and deduplication between numeric and slug-based filenames, and ensures image path resolution uses the correct identifier.
- Modified blog handler to resolve slugs to numeric files when slug files don't exist
- This allows slug URLs to work without creating duplicate slug files
- Fixes sorting issues while maintaining slug URL compatibility
- When files have recent timestamps (from setup script), sort by numeric ID
- Higher numeric IDs represent newer blogs
- This ensures proper chronological ordering in admin interface
- Remove duplicate slug files that were causing duplicate entries
- Add logic to find corresponding numeric ID for image paths
- This fixes broken images in admin interface for slug-based blogs
- Add deduplication logic to avoid showing same blog twice
- Add extractBlogID function to get correct numeric ID from meta tags
- Use blogID for image paths instead of filename ID
- This fixes duplicate entries in admin interface and broken images
- Fix listLatestBlogs function to use correct blog directory path
- Add /data/blog-list.json endpoint for frontend blog listing
- Update remoteBlogDir references to use blogDir
- Resolve blog listing and admin interface loading issues
Tomas Dvorak