v2: Deploy updated app with per-class thresholds, temperature calibration, CWE-aware fix generation

Fix: Gradio 5.x theme/css belong in gr.Blocks(), not demo.launch()

Fix runtime errors: transformers version pin, Gradio 6.0 compatibility, tokenizer deps, API endpoints

Updated app with JSON API endpoint, better UI, and REST API docs

Add Code Security Analyzer Gradio app