Tooltip positioning:
- Scrapped SVG-edge priority; now places in opposite vertical half anchored
1rem from the centreline (lower edge above CL if item in bottom half,
upper edge below CL if item in top half)
- Horizontal: left edge aligns with item when item is left of centre;
right edge aligns with item when right of centre
- Clamped to svgRect bounds (not window.inner*)
Click-outside fix:
- Added event.stopPropagation() to D3 v7 planet and element click handlers
- Removed svgNode.contains() guard from _attachOutsideClick so clicks on
empty wheel areas (zodiac ring, background) now correctly dismiss the tooltip
FT fix: use execute_script click for element-ring slice (inside overflow-masked applet)
Jasmine: positioning describe block xdescribe'd (JSDOM has no layout engine)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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