Clears the 3 wiki/log.md entries recording the schema 1.4 -> 1.5 migration.
That was the entirety of Tier 1 content: no entity pages, project scopes,
decision records or graph edges existed to remove.
Only wiki/log.md changed. The other scaffold files already matched what
ckb-init produces at schema 1.5, and edges.json/overview.md keep their
existing last_updated dates because those dates are accurate — bumping them
would assert changes that did not happen.
Rule B would normally require a wiki/log.md entry for a change inside wiki/,
but writing "emptied the log" into the log it just emptied defeats the
reset. The record is in workload/2026-09-22_summary.md instead, and the
migration itself remains documented in CHANGELOG.md and in commits 474630e
and 2c4d57a.
Tier 2 (workload summaries), the template layer, schema 1.5 and template
version 1.8.0 are all preserved. Lint: 0 findings.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>