- Recursive compound rendering: CompoundNode checks if children are
themselves compound types (WHEN inside CHOICE) and renders them
recursively. Added EIP_WHEN, EIP_OTHERWISE, DO_CATCH, DO_FINALLY
to frontend COMPOUND_TYPES.
- Edge z-ordering: edges are distributed to their containing compound
and rendered after the background rect, so they're not hidden behind
compound containers.
- Error section sizing: normalize error handler node coordinates to
start at (0,0), compute red tint background height from actual
content with symmetric padding for vertical centering.
- Toolbar as HTML overlay: moved from SVG foreignObject to absolute-
positioned HTML div so it stays fixed size at any zoom level. Uses
design system tokens for consistent styling.
- Zoom: replaced viewBox approach with CSS transform on content group.
Default zoom is 100% anchored top-left. Fit-to-view still available
via button.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New interactive route diagram component with SVG rendering using
server-computed ELK layout coordinates. TIBCO BW5-inspired top-bar
card node style with zoom/pan, hover toolbars, config badges, and
error handler sections below the main flow.
Backend: add direction query parameter (LR/TB) to diagram render
endpoints, defaulting to left-to-right layout.
Frontend: 14-file ProcessDiagram component in ui/src/components/
with DiagramNode, CompoundNode, DiagramEdge, ConfigBadge, NodeToolbar,
ErrorSection, ZoomControls, and supporting hooks. Dev test page at
/dev/diagram for validation.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
