* fix: use portal-based positioning for property panel dropdowns
StatusDropdown and DisplayModeSelector used absolute positioning
within the Inspector's overflow-hidden container, causing dropdowns
to be clipped when the Properties panel is narrow (200-280px).
Both now render via createPortal into document.body with fixed
positioning calculated from the trigger element's bounding rect.
This matches the pattern used by existing Radix UI components
(Select, Popover) in the codebase.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* design: property dropdown narrow panel fix — before/after frames
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Co-authored-by: Laputa App <laputa@app.local>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>