Drop the Maintainability Guardrails docs section and remove the fan-in/runtime-cycle guardrail scripts from local and CI workflows so contributor guidance matches current validation lanes.
- map segmented Yomitan lines into single logical tokens and improve candidate selection heuristics
- limit frequency lookup to selected token text with POS-based exclusions and add debug logging hook
- add standalone Yomitan parser test script, deterministic utility-script shutdown, and docs/backlog updates
- Remove structural quality gates task and references from task-27 roadmap.
- Remove structural-gates-adjacent work from scripts/positioning cleanup context, including check-main-lines adjustments.
- Archive completed backlog tasks 11 and 27.7 by moving them to completed directory.
- Finish task-27.5 module split by moving/anonymizing anki-integration and renderer positioning files into their dedicated directories and updating paths.
