fix: remove fake progress bar, fix forwarding percentage

fix: progress bar keeps moving up to 99% (was stuck at 90%)

fix: use MutationObserver for upload progress (works with fetch API)

feat: custom JS upload progress bar with percentage and MB counter

fix: header text Gemma 4 31B

feat: add upload progress tracker with file size and status

feat: add file upload (MAF/VCF) + update model label to 31B

feat: add API key auth for backend calls

feat: update model to Gemma 4 31B with tool calling support

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub

initial commit