fix: resolve Gradio generator pickling error and deprecation warnings

feat: upgrade Gradio demo to be constraint-aware and intelligent

feat: implement dynamic constraint system with stochastic generation and UI visualization

fix: upgrade frontend simple agent to parse explicit strings and cleanly hit 1.0 fast-path execution loop

feat: enforce out-of-bounds scheduling context detection on interactive demo inputs

style: implement responsive split-column UI layout for dashboard

fix: resolve Gradio generator pickling error by removing lambda wrappers

refactor: migrate UI from Streamlit to Gradio for optimal HF Spaces compatibility

feat: add support for custom instructions via UI input field

feat: add premium Streamlit UI layer for live demo