fix(review): stabilize highlights, links, and image comments

[ThisIs-Developer]

What changed

• Treat every rendered text node intersecting a saved review range as highlightable, including selections that cover the entire node.
• Preserve continuous persistent highlights across bold, italic, link, inline-code, and strikethrough boundaries.
• Suppress external links, internal anchors, linked badges, and auxiliary-click navigation while Comments mode is active.
• Keep linked images selectable as comment targets and restore normal link behavior after Comments mode closes.
• Remove obsolete legacy review gutters so image, table, diagram, heading, and paragraph geometry remains unchanged during selection and after comments are added.
• Regenerate the desktop application script and style mirrors.
• Add regressions for the README highlighting structure, submit/re-render/reload persistence, Comments-mode link handling, and before/after image geometry.

Why

The highlight segmenter used the number of split boundaries to decide whether a text node needed work. A whole-node selection has only its existing start and end boundaries, so it was incorrectly treated as non-intersecting and skipped. This affected fully selected inline nodes and could leave gaps in selections spanning multiple formatted nodes.

Preview links were also handled independently after Review Mode click handling. That allowed hyperlinks and linked badges to open or scroll even during comment selection.

Finally, legacy block-side action styles still reserved 76 px after a commented image even though Comments v2 no longer renders those actions. A 100 px image therefore expanded to a 176 px box and its visible content shifted 38 px off center.

Testing

• npm run check:static
• Focused Review Mode suites: 15 passed in Chromium
• Whole-node/cross-format regression: passed in Chromium, Firefox, and WebKit
• Link and linked-badge regression: passed in Chromium, Firefox, and WebKit
• Image geometry regression (selection, composer, submit, reload): passed in Chromium, Firefox, and WebKit
• Full Chromium suite: 168 passed; one unrelated timing-sensitive encrypted-journal test timed out under the full parallel run and passed independently on retry (1 passed)

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