# Sprint 227 Plan: Rust Harness Stability + Cross-Catalog Closure

## Goal
Remove residual Rust harness-induced test failures and re-validate parity closure on both hard catalogs.

## Steps
- Step 2174: Patch rust gate harness to default-initialize `PriorityQueue` safely.
- Step 2175: Re-run focused hard subset with strict parity mode.
- Step 2176: Re-run fullstack/multifile hard set with strict parity mode.
- Step 2177: Require both metrics to be zero:
  - `ab_prod_divergence_count`
  - `ab_consistency_blocked_count`
- Step 2178: Publish dated execution tracker and registry updates.