Add dataset import & LoRA collection sync - Adds import_prepared_dataset() method to support ZIP dataset imports with name conflict resolution - Adds sync_on_startup() to download LoRAs from HF collection on app startup - Enhanced upload_lora() with training_config for proper metadata - Implements numeric suffix naming for conflicts (_1, _2, etc.)

Add persistent dataset detection for HF and user datasets across sessions

Remove MusicCaps dataset (metadata only, no audio)

Remove MTG-Jamendo dataset (not found on Hub)

Fix dataset IDs: remove Common Voice & FLEURS, fix FSD50K & LibriSpeech

Remove MSD (no audio), add FSD50K and Common Voice

Add Million Song Dataset (10K subset)

Remove broken datasets that don't exist on HuggingFace Hub

Access audio file paths directly to bypass torchcodec

Fix audio decoding and duplicate method issue

Fix FFmpeg dependencies and improve audio decoding

Remove VCTK dataset (uses unsupported loading script)

Fix missing is_dataset_downloaded methods

Re-add LibriSpeech and implement download status tracking

Replace broken datasets with working alternatives

Add dataset preparation feature for training

Fix training error - validate HF datasets are prepared

Fix dataset loading with Parquet-based datasets

Fix dataset loading errors with Parquet-based datasets

Upgrade to complete datasets with 11TB Pro storage

Fix dataset download errors with verified HuggingFace datasets

Add HuggingFace datasets integration for LoRA training