- Separated non-contiguous diff regions with a single blank gap row, normalized after block-context insertion.
- Rendered gap rows as one dim ellipsis in the TUI and HTML export.
- Applied the same blank-separator dedupe and edge-trimming to hashline's compact diff preview.
- Rendered added/current lines without `+`/space prefix padding.
- Collapsed long added runs with a bare `…` marker instead of `+…`.
- Normalized adjacent ASCII/Unicode elision markers to one `…`.
- Added matching-bracket utilities to locate partner lines for visible spans.
- Added read tool output to use displayContent text and startLine for bracket-aware previews.
- Added matching-bracket context rows to generateDiffString and generateUnifiedDiffString.
- Adjusted diff row insertion to deduplicate and keep contiguous changed groups together.
- Removed the mid-skip placeholder line that was output when skipping lines in the middle of a diff, relying instead on the line number jump to convey the gap. Removed the corresponding placeholder-filtering logic from the hashline diff preview that was handling these placeholders.
- Modified buildCompactDiffPreview to omit removed lines from output while preserving removal counts for offset tracking.
- Added logic to collapse long contiguous added runs with +<lineNum>... elision marker, keeping configurable edge lines on each side via new maxAddedRunContext option.
- Removed context-gap placeholder rows (... or ...) from model-facing preview, relying on line-number jumps to convey elision.
- Reorganized test suite by moving core contract tests to dedicated core-contracts.test.ts file and diff-preview tests to diff-preview.test.ts for better separation of concerns.
can1357