* release: 0.53.0 — Tier B trackers + admin UI bugfix
Closes#259 (init resume sentinel), #260 (startup parquet-lock sweep),
#261 (materialized schema uses local parquet, not BQ), #265 (admin
tables apostrophe → HTML-entity escape).
Tracker notes: #262 closed as obsolete (pre-empted by 0.51.0 changes),
#266 left open pending UX clarification.
* fix(init): move resume sentinel from .agnes/ to .claude/
The clean-install integration test (test_clean_install_integration.py)
forbids creating .agnes/ in the workspace root via its
forbidden_unconditional list — that path is reserved for ~/.agnes/ in
the user's HOME (marketplace clone, CA bundle).
.claude/ is already created by agnes init for settings.json + hooks,
so dropping init-complete next to those keeps the resume sentinel
consistent with the rest of Claude Code's workspace surface and lets
the clean-install assertions pass.
Issue #259.
* docs(changelog): point #259 entry at new .claude/init-complete path
Follows the sentinel move from .agnes/ → .claude/ to keep the changelog
in sync with what 0.53.0 actually ships.
