Add new setting 'mature_blur_level' with options PG13/R/X/XXX to control
which NSFW rating level triggers blur filtering when NSFW blur is enabled.
- Backend: update preview selection logic to respect threshold
- Frontend: update UI components to use configurable threshold
- Settings: add validation and normalization for mature_blur_level
- Tests: add coverage for new threshold behavior
- Translations: add keys for all supported languages
Fixes#867
- Add CivitAI URL utility with optimization strategies for showcase and thumbnail modes
- Replace /original=true with /optimized=true for showcase videos to reduce bandwidth
- Remove redundant crossorigin and referrerpolicy attributes from video elements
- Use media type detection to apply appropriate optimization (image vs video)
- Integrate URL optimization into showcase rendering for improved loading times
- Pass modelType parameter to setupTagEditMode function
- Implement model type aware priority tag suggestions
- Add model type normalization and resolution logic
- Handle suggestion state reset when model type changes
- Maintain backward compatibility with existing functionality
The changes enable context-aware tag suggestions based on model type, improving tag relevance and user experience when editing tags for different model types.
