3 Commits

Author SHA1 Message Date
70efde8aa6 Fix chat panel scroll: replace scrollIntoView with container.scrollTo
scrollIntoView walks up the DOM and scrolls every ancestor, including
the panel with overflow:hidden — this pushed the header and messages
area off-screen after long LLM responses. Using container.scrollTo
limits scrolling to only the messages div.
2026-02-23 14:56:41 -07:00
6f239c185e Chat widget: markdown styling, KaTeX math rendering, SSE streaming fix
- Add comprehensive CSS for markdown elements in chat bubbles (headers,
  lists, tables, blockquotes, links, code blocks, horizontal rules)
- Integrate KaTeX via marked-katex-extension for inline ($) and display
  ($$) math rendering with DOMPurify whitelist for MathML/SVG elements
- Add normalizeDisplayMath() pre-processor to handle LLM output where $$
  delimiters appear inline rather than on their own lines
- Add dark theme KaTeX styles matching the SpiceBook color palette
- Fix asyncio.to_thread usage in chat SSE endpoint for streaming
2026-02-23 14:25:42 -07:00
99d1ca28d2 Add MCP server and chat assistant
- Mount FastMCP at /mcp with tools for notebook CRUD, simulation,
  and cell execution. Includes status resource and circuit_assistant
  prompt.
- Add SSE streaming chat endpoint at /api/chat/stream backed by
  GPU LLM gateway (qwen3). Chat widget sends notebook context
  (SPICE cells, markdown notes) so the assistant can reference the
  user's circuit.
- React floating chat panel with zustand-persisted conversation
  history, streaming token display, reasoning collapse, and
  keyboard shortcuts.
- Refactor main.py from deprecated on_event("startup") to lifespan
  context manager with combine_lifespans for MCP integration.
- Add notebook_id path traversal validation, decouple get_engine()
  from HTTPException for MCP compatibility, fix HTTP client init
  race condition with asyncio.Lock.
- Update Caddy labels for /mcp/* routing and SSE streaming on
  backend reverse proxy.
2026-02-22 16:49:15 -07:00