Add Top-K retrieved passages control

Add explicit uploaded report count above question type

Show uploaded report names and hide overlay after upload

Escape CSS newline literal for upload overlay

Fix upload overlay CSS newline escaping

Expand upload dropzone English overlay

Overlay upload dropzone with English text

Force English upload dropzone text

Fix Gradio 6 launch compatibility and disable SSR

Polish upload text, remove evidence candidate slider, add restart helper

Add interactive ClimateRAG QA demo with upload and evidence controls