[WarheadTaylor]

Summary

• Activity log output segments now close only after a newline, so a log line is no longer split across rows when a chunk ends mid-line.
• A segment can grow past the 4 KiB target (up to a new 16 KiB hard cap) to finish its current line. A single line longer than the cap still splits mid-line.
• Continuation segments skip the stream label (cmd/sys/stdout/stderr), since they continue the previous segment's stream.
• The segment-building logic moves into a nextSegmentText helper.

Testing

• Added a test that feeds 500 build-style lines in uneven 37-character chunks and checks that every closed segment ends in a newline, that continuations are marked, and that the joined raw text matches the input.
• Added a test that a line under the hard cap stays whole, and that a line over the cap splits at exactly ACTIVITY_LOG_SEGMENT_MAX_CHARS.
• Updated the existing segment-bounds assertion to use the new cap constant.
• Not run: vp check, vp run typecheck, and the activityLog test suite. Run them before merging.
• Not run: visual verification of the activity log in Electron (npm run dev:inspect). Label and wrapping behavior has not been checked on screen.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	⚠️ Failed 2026-10-19T08:02:56.696973Z	541ce5b	PR opened

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