fix: update DOI badge and correct logo image path in README

Refactor code for better general logo management

fix: remove unused styles and enhance hero section for mobile responsiveness

Add small Viadrina University logo image to assets

Release v1.51: Auth cleanup, sidebar improvements, CSS refactoring

feat: implement dynamic hero section with background image and responsive styles

fix: add internal document configuration and update document retrieval to include recordset

fix: add Internal documents url_config and fix manual entry saving

fix: improve documentation clarity and formatting in housekeeping console explanation

fix: dynamically calculate table height based on row count for improved display

fix: adjust table height dynamically based on row count for better display

fix: enhance color scheme for topic and request type visualizations

fix: update chart type from pie to ring for better visualization

Merge branch 'main' of https://github.com/jmiba/ai-service-chatbot

fix: update default chat system prompt to improve response style and clarity