Fix persona IDs to match database and collapse diagnostics

Fix multiple bugs: text_area height, Pydantic schema, double-click, sidebar

FINAL FIX: Remove st.rerun() to eliminate white screen flashing

Fix white screen flashing by removing value parameter and st.rerun()

Fix session state error on main page example questions

Fix Streamlit session state errors and UI improvements

Add comprehensive error display and diagnostics for debugging

Fix HF Spaces initialization and add comprehensive diagnostics

Improve LLM client error handling and API key detection

Fix NameError for llm_client variable

Fix session state KeyError in web_app.py

Fix module import errors in web_app.py

Add Edit Personas page and complete model selector integration

Add beautiful web UI for interactive persona conversations