Fix 404 error: Update model from deprecated claude-3-opus to claude-sonnet-4

Improve mobile UI: Add clear scroll instructions and full-width button

fix: Simplify Anthropic client initialization and downgrade package version

fix: Update Anthropic client initialization to fix proxies parameter error

Add comprehensive debrief sequence with button

point this spaces project to the correct app.py launcher

Update sidebar introduction with new professional bio and tool description

Update app configuration and documentation for Hugging Face deployment