- Promote timer_entry → charge_timer_entry to default billing path; demote
bare add_line_item to a clearly-labeled fallback for non-time items only.
Mike caught the bare-add_line_item bug across 31 tickets on 2026-04-30;
repeated on 3 tickets 2026-05-01. Time entries are required for Syncro
reporting (hours per client, tech productivity, prepay burn).
- Replace /tmp/*.json payload pattern with heredoc throughout. /tmp resolves
to C:\tmp\ in the Write tool but %LOCALAPPDATA%\Temp\ in Git Bash on
Windows — different real directories. Caused a wrong-comment incident on
ticket #32225 2026-05-01 (rogue payload from prior session). Heredoc
avoids the file handoff entirely.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>