Move plans from doc/plan/ into doc/plans/ and add YYYY-MM-DD date
prefixes to all undated plan files based on document headers or
earliest git commit dates.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Document remaining work for config revision UI, approval comment integration,
adapter reflection improvements, and end-to-end CEO hiring workflow testing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>