When enabled, uses the LLM to enrich genre/style tags into detailed
music descriptions and generate proper BPM, key, and time signature
metadata (CoT features). Fixes genre tags like "pop, rock" producing
ballad-like output by matching Gradio UI default behavior.
- Add enhance toggle in Style of Music card header
- Gate CoT metas/caption/language by enhance OR thinking flag
- Remove unsupported --lm-backend/--lm-model from Python fallback
- Add i18n translations (en/zh/ja/ko) with tooltip
- Make bottom player empty state a clickable button that plays first available song
- Guard togglePlay to show toast when audioUrl is missing instead of silently failing
- playNext/playPrevious now skip songs without audioUrl or still generating
- repeatMode 'none' stops at queue boundaries instead of wrapping
- Add ShareModal to mobile fullscreen player (was missing, share silently failed)
- Add spacebar play/pause keyboard shortcut (skips when typing in inputs)
- Add onPlayFirst prop to Player component
- Add selectSongToPlay i18n key (en, zh, ja, ko)
- Migrate backend from REST API to Gradio @gradio/client for generation
- Fix Gradio parameter alignment (positions 36-49) for reference/cover audio
- Add LoRA training pipeline with dataset upload, preprocessing, and export
- Add News page with dismiss/restore and GitHub star button
- Add localization info icon in Settings language section
- Fix upload audio URL prefix, add missing MIME types
- Add training API routes and Python preprocess script
- Update i18n with news keys for all languages
- Add I18nContext provider with useI18n hook and localStorage persistence
- Add translations.ts with complete strings for English, Chinese, Japanese, Korean
- Wrap App in I18nProvider, replace hardcoded toast messages with t() calls
- Add language selector to SettingsModal with Globe icon
- Add localization credits in About section
- Default language: English
- Add I18N_USAGE.md documentation
fspecii