fix: use InferenceClient for HF API calls instead of raw urllib

fix: pin huggingface_hub<1.0.0 for gradio 5.33 HfFolder compat

fix: sdk_version bump

fix: require gradio>=6 to get huggingface_hub 1.x compat

fix: theme compatible with gradio 5 (remove .set() CSS vars)

fix: sdk_version to 5.0.0

fix: upgrade to gradio 5 for huggingface_hub compatibility

fix: pin python 3.11 for pydub/audioop compatibility

feat: assets

feat: ui package

feat: storage package

feat: services package

feat: quiz package

feat: config package

feat: agents package

fix: readme colorTo

feat: requirements

feat: app.py

feat: initial StudyWithChampAI implementation

initial commit