- Add loadTestImage helper using Playwright route interception to serve
a fixture image via /editor?url= query parameter
- Filter/adjustment tests now load a real source image instead of drawing
brush strokes (adjustments only apply to source images, not drawn objects)
- Blur/sharpen tests verify DOM state (checkbox checked, parameter input
accepts and persists values) instead of fragile canvas pixel comparison
- Selection options test uses getByRole with waitForTimeout for robustness