fix: reserve scrollbar gutter to prevent horizontal layout shift#1744
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Closes #1743. Adds `html { scrollbar-gutter: stable; }` as a CSP-nonced inline style in the framework skeleton. Centered chrome no longer jiggles by the scrollbar's width when navigating between short and long pages on platforms with classic scrollbars (Windows, Linux, macOS with "Always show scrollbars"). On overlay-scrollbar systems it's a no-op. Inlining in the skeleton (rather than `config.css`) means existing scaffolded projects pick up the fix on a vibetuner upgrade with no CSS rebuild needed. Rendered before `bundle.css` so a project's bundle can still override. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
davidpoblador
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May 6, 2026
🤖 I have created a release *beep* *boop* --- ## [10.8.4](v10.8.3...v10.8.4) (2026-05-06) ### Bug Fixes * reserve scrollbar gutter to prevent horizontal layout shift ([#1744](#1744)) ([6878bf6](6878bf6)) ### Miscellaneous Chores * **deps:** bump cryptography from 47.0.0 to 48.0.0 ([#1751](#1751)) ([6768455](6768455)) * **deps:** bump cryptography from 47.0.0 to 48.0.0 in /vibetuner-py ([#1747](#1747)) ([d5525d3](d5525d3)) * **deps:** bump resend from 2.29.0 to 2.30.0 ([#1750](#1750)) ([dfcd20b](dfcd20b)) * **deps:** bump resend from 2.29.0 to 2.30.0 in /vibetuner-py ([#1749](#1749)) ([a724ba1](a724ba1)) * **deps:** bump rumdl from 0.1.87 to 0.1.88 ([#1752](#1752)) ([aa9d738](aa9d738)) * **deps:** bump rumdl from 0.1.87 to 0.1.88 in /vibetuner-py ([#1748](#1748)) ([ff2a8cc](ff2a8cc)) * **deps:** drop lint-po git pin in favor of PyPI 0.1.5 ([#1745](#1745)) ([add3c9b](add3c9b)) * **deps:** update mongo docker tag to v8.3 ([#1753](#1753)) ([1cb20d0](1cb20d0)) * update deps 2026-05-06 ([fb303df](fb303df)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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Summary
html { scrollbar-gutter: stable; }as a CSP-nonced inline style inbase/skeleton.html.jinjaconfig.cssso existing scaffolded projects pick up the fix on a vibetuner upgrade with no CSS rebuild — rendered beforebundle.cssso a project bundle can still overrideCloses #1743.
Test plan
TestScrollbarGuttercovers presence, CSP nonce, and pre-bundle.csscascade orderuv run python -m pytest tests/unit/— 797 passedjust lint-jinjaclean🤖 Generated with Claude Code