v3.13.2

Fixed — Region capture no longer returns a backgroundless screenshot

Calling the capture viewer action with a CSS selector on a themed webcraft / kami page (parchment, dark, anything other than default white) brought back a PNG of the element painted onto transparency — the agent then saw the capture as "broken" and could not visually QA the section against the rest of the page.

• Electron-first for region captures that fit the viewport. When the desktop app is available and the scrolled-into-view target fits inside the iframe's visible area, the runtime now takes a real OS-level screenshot of the rectangle (which trivially picks up every inherited paint — body bg, paper grain, sibling overlays). snapdom remains the fallback path for taller-than-viewport targets, since only it can stitch the full content height.
• snapdom captures now carry the inherited background. Walking the ancestor chain (target → body → html) for the first opaque backgroundColor, applying it as an inline style on the target before snapshot and passing it as snapdom's backgroundColor option. Sub-element captures on parchment pages now match what the user sees in the viewer.