## Why
Large or minified diffs can require substantial work to allocate wrapped rows and syntax-highlighted spans in the inline patch view.
## What changed
- Limit inline patch previews to 12 rendered rows across all changed files, while retaining file summaries and directing users to the transcript when content is omitted.
- Preserve complete diff content in transcript and raw views.
- Bound preview source scanning to 64 KiB so zero-width content cannot bypass the row budget.
## Testing
Add coverage for added, deleted, updated, renamed, minified, narrow-width, wide-character, combining-character, and multi-file diffs, including preservation of complete transcript and raw output.
GitOrigin-RevId: 1899129ab548771c29d226ff624549573fb2f688
