[OliverRC]

Why

wootware/magento-1#225 removes the legacy Sendy install, which is 1,224 file deletions. The kickflip PR-comment step failed with:

Octokit.ApiValidationException: Validation Failed
Body is too long (maximum is 65536 characters)

The changes table has one row per file, and ConsoleTable pads every row to the widest path (about 290 characters here). That puts the comment at roughly 350k characters. Any large deployment will hit this.

Change

PullRequestCommentComposer.Compose now checks the full body length. If it's over 65,000 characters (some headroom under GitHub's 65,536), it:

• cuts this action's section at the last full line that fits, so the markdown table still renders with complete rows
• adds a note giving the original size and pointing to the workflow logs and job summary, which still list every change
• leaves other actions' sections in the shared comment unchanged

I kept the per-row padding as is. Trimming it would save characters, but 1,224 rows still wouldn't fit, so truncation is needed regardless.

Testing

• New test Compose_OversizedSection_TruncatesAtLineAndKeepsOtherSections: it checks that a 2,000-row section is truncated under the limit, the other section survives, the first rows are kept, the last rows are dropped, and every remaining table row is complete.
• All 65 tests pass locally.

magento-1 installs kickflip from NuGet without a pinned version, so once this is released, re-running the magento-1 job will pick up the fix.

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