Changelog

A set of AI chat building blocks, ported over from shadcn-vue:

• Attachment: Displays a file or image attachment with media, metadata, upload state, and actions.
• Bubble: Displays conversational content in a message bubble, with variants, alignment, grouping, and reactions.
• Marker: Displays an inline status, system note, bordered row, or labeled separator in a conversation.
• Message: Lays out a single message in a conversation, handling the avatar, alignment, header, and footer around it.
• Message Scroller: A headless scroll container for chat transcripts. Anchors turns, follows streamed replies, restores your place when older history loads, and exposes composables to jump to any message.

• Integrated with the Docd documentation layer.

• Sidebar: Fixed an issue where the SidebarProvider was not persisting the open or closed state correctly with cookies. The provider now restores the saved state properly and keeps the cookie in sync with controlled updates.
• Class Overrides: Updated component and prose style builders to normalize Vue class bindings with normalizeClass(...) before passing them into tv(). This removes the TypeScript errors introduced by the recent Vue class type change without narrowing the public class prop API.
• Scrollspy: Added a shared mode="multiple" option so docs and app layouts can mark every visible heading as active at once. The docs TOC rail now follows those active headings with a segmented zigzag highlight instead of a single active branch.

• Agent Skills: Added a new local uithing Codex skill for UI Thing workflows. It covers real CLI usage, component/docs/generator/MCP authoring inside this repo, and React or shadcn-style snippet conversion into native Vue, Nuxt, and UI Thing composition.