Preen Deferred Fixes

Complete deferred follow-up commitments from recently merged PR review threads, then ship the fixes with tests.

Finding Deferred Work

Deferred fixes are tracked via GitHub issues with the deferred-fix label. These issues are created automatically by /enter-merge-queue when review feedback is deferred rather than fixed on-the-fly.

Workflow

1. Find deferred fix issues:

   ./scripts/agents/tooling/agentTool.ts listDeferredFixIssues --state open
   

   If a specific issue number is provided, start from that: