Introduces the Nebot plugin, providing a floating chat panel that communicates with a local or remote Ollama server and persists chat sessions. Adds dependencies for markdown rendering and code highlighting (dompurify, highlight.js, marked). Removes the sample-hello plugin. Updates site-history.json with recent browsing history.
Enhances the tab strip with ARIA roles, keyboard navigation, and improved drag-and-drop reordering. Refactors tab rendering for better accessibility, adds dedicated new-tab button, and updates styles for a more modern look and clearer tab controls.
andrew