Effect › Blur › Radial Blur (spin/zoom, draft/good/best) and Smart Blur
(Normal mode), Effect › Sharpen › Unsharp Mask: Photoshop-style filters in
vectorcraft_effects::pixel, run by the renderer on the object's pixels in
stack order with Gaussian Blur and Feather, cached while panning; lengths in
points, bounded work per pixel. PDF, Expand Appearance and SVG export write
the effected objects as images. Dialogs with preview (method/quality
dropdowns, fields in documented order), menu entries, translations, tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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