- stores/versions-store.ts, hooks/use-session-manager.ts,
lib/session-storage.ts: remove the diagramHistory conversion layer,
the localStorage chat migration and the empty templates store
- stores/canvas-store.ts, lib/drawio/editor-bridge.ts: remove the
pages list nothing read
- components/chat/chat-engine.tsx: use the context's chartXMLRef and
latestSvgRef instead of local copies, subscribe to one settings field,
stop prefetching quota limits (lib/use-quota-manager.tsx takes the
values from the 429 body), readDiagramFile delegates to the MCP
loader (which now strips XML prologs and accepts <svg:svg>)
- contexts/diagram-context.tsx: one requestTaggedExport path for
thumbnails, validation, fetch and save; fetchDiagramXml replaces
handleExport plus the exported resolver map
- hooks/use-validate-diagram.ts and app/api/validate-diagram: plain
fetch returning JSON instead of a streamed object nobody consumed
- hooks/use-diagram-tool-handlers.ts: drop the DEBUG blocks; canvas
vars inheritance lives in placeOnPage (lib/diagram-pages.ts)
- lobby-hero, icon-button, drawio-frame: remove unreachable branches
and unused props
The canvas now fills the window and the chat floats on its right. draw.io is
served from our own origin (public/drawio, downloaded at build time and
checked against the release's SHA-256), so the app can drive the editor
directly:
- every AI change becomes a version card with a thumbnail; compare, restore
or undo it, and Ctrl+Z on the canvas takes an AI change back in one step
- shapes the AI just changed are highlighted on the canvas
- selected shapes appear as a chip and are sent to the model
- draw.io's own simple UI: its toolbar, menus (auto layout, Mermaid, CSV
import) and page tabs; the shape library starts closed
- new start screen, session rename and switcher, open .drawio files
- settings split into Models & keys, Appearance, Advanced and About
- Bedrock in the model settings also takes an API key instead of access keys
- phones switch between canvas and chat
- dark mode uses draw.io's own dark mode, with neutral greys around it
With an external draw.io (NEXT_PUBLIC_DRAWIO_BASE_URL) the features above
that need same origin are off.
The chat logic moved from the 1500-line chat panel into a chat engine plus
small UI components; zustand holds canvas, versions, settings and UI state.
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