[opticon454]

Rendered Markdown in the File Viewer stops growing at a fixed 960px column even when the user resizes or expands the window. Remove that cap so the document reflows to the available width. Default desktop and phone widths retain their existing layout.

Adds a regression check for the preview and shared prose rules, plus a patch changeset. No API changes.

Validation:

• Full CI unit/integration suite: 12,571 passed, 12 skipped, across 631 passing files and one skipped file.
• xterm-zerolag-input: 261 passed across 10 files.
• Markdown anchor browser suite: 5 passed.
• Chromium layout checks: default desktop, resized, expanded, tablet and phone; confirmed the parent commit reproduces the 960px restriction.
• Lockfile, typecheck, lint, frontend syntax, browser exclusions, formatting, public assets, CLI catalogue and installer syntax checks passed, including the Bash 3.2 installer checks.
• Pre-push static checks passed.

The remaining browser, mobile and performance suites were not run. This PR does not deploy or release the change.

Implementation commit: 34f7766.

[Ark0N]

Thank you, @opticon454. This removes the fixed 960px reading column from the File Viewer's rendered Markdown, so the document reflows to fill the window once it is dragged larger or expanded, which pairs well with the resize grip you added.

I checked it in Chromium against the parent commit: the default-size and phone layouts are identical, an expanded window now fills edge to edge, and the new test fails on the old stylesheet as it should.

One small leftover:

• src/web/public/styles.css:12554: ASCII-diagram code blocks still carry their own cap. .rv-text .rv-diagram-wrap (styles.css:14948) uses max-width: var(--rv-content-max, 720px) with auto margins, and that variable is only set inside the Response Viewer, so in the File Viewer a diagram stays 720px wide and centered. In a 1920px expanded window it sits at x=600 while the prose and the other code blocks start at x=59. Adding --rv-content-max: none; to the .file-preview-body > .file-preview-md rule lets it follow the rest of the document. Note that this also widens diagrams at the default window size (720px to about 858px, the same width as the other code blocks), so it changes the default view slightly. If you add it, a third assertion in the new test keeps it pinned.

I can add that line at merge time, so there is nothing you need to push for this to go in.

[Ark0N]

Merged in 1.47.0 (https://github.com/Ark0N/Codeman/releases/tag/codeman%401.47.0). Thank you, it pairs well with the resize grip. At merge I added --rv-content-max: none; to the document rule with a third assertion in your test (c708312), so ASCII diagrams follow the window like the rest of the document. Your changeset is folded into the release's single one.