Streaming AI chat panel. Author the assistant identity (Title / Description / Welcome / Avatar / AssistantName) and grounding (SystemPrompt rich text + Context items + Sitecore Search source) on the datasource; Model Tuning (Model / Temperature / MaxTokens) sits alongside content. Variant / Position / ColorScheme live on rendering parameters. Runtime affordances include dictation via the browser Web Speech API, drag-and-drop file attachments, and live page context (URL / title / headings / visible body) folded into every turn's system prompt.

• src/components/registry/components/ai/ai-chat.tsx→components/registry/components/ai/ai-chat.tsx
• src/app/api/ai-chat/route.ts→app/api/ai-chat/route.ts
• src/components/registry/components/ai/ai-chat.recipe.ts→src/recipes/ai-chat.recipe.ts