Three defects from the sweep, all caught by ruff.
system_ids was REMOVED FROM create_rule AND create_project_rule — a real API
regression, not a lint nit. The parameter shared a signature line with tier,
so deleting the tier deleted it too, and the tools lost the ability to tag a
new rule to an area. Areas are what let a rule reach a project after this
milestone, so the one parameter that decides reach went missing from the two
tools that create reachable rules.
The other two are imports left holding nothing: services/rulebooks.py's
module-level datetime and its IntegrityError were used only by functions this
milestone deleted, and plugin_context lost four (select, async_session,
RulebookTopic, rulebooks_svc) with the preload and _topic_titles.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011cPyzNnegXHr5iRMzzy5KJ