fix: constrain Hugging Face Hub for Gradio 4

fix: restore Gradio startup on Python 3.13

Sync to AISecurityModel v2.4.1 - Phase 5 positioning + Privacy Act reform sweep

Fix for CPU-only mode (no GPU quota needed)

Fix model generation for proper vulnerable-then-educate responses

Add @spaces.GPU decorator for HuggingFace GPU support

Fix model loading: Use LoRA adapter with base model

Add interactive AI Security Education demo

initial commit