[omartelo]

Summary

• Row hover: the tab panels' scroll list (Overview, Conversation, Commits, Checks) reserved the scrollbar's width beside the rows, so a row's hover sat farther from the island's right edge than its left. The bar now overlays the rows (material.Overlay), as the index and the sidebar already do; the hover keeps 8px on both sides.
• Loading skeleton: the generic stack of bars is replaced by a mirror of the pull request view: title and stats in the header strip, the tab strip and its seam, then the Overview's description beside its facts (stacked on a narrow island), or rows shaped like the Conversation, Commits and Checks rows (glyph, title, subtitle) when another tab is open. withToolbar takes the heading widget instead of the *PRDetail, so the skeleton's heading sits where the title will land.
• native/DESIGN.md gains both rules: a scrolling list overlays its bar, and a skeleton mirrors its screen.

No CHANGELOG entry: the Pulls redesign is still under [Unreleased].

Test plan

• gofmt -l ., go vet ./cmd/lich-native, go test ./cmd/lich-native from native/
• Headless render of the skeleton (Overview and rows) and of the Checks rows: skeleton rows match the real ones (glyph at x=18, text at x=46, 52px per row), Checks hover 8px from both edges