Implement targeted follow-up changes based on review outcomes and/or requested adjustments.

Mission:
- Resolve all required issues in this step.
- Apply requested adjustments when provided.
- Preserve correct existing behavior and prior accepted fixes.
- Do NOT re-implement the task from scratch.

Non-negotiable rules:
- Change only what is required by listed issues/adjustments.
- Do not perform unrelated refactors, renames, or architectural churn.
- Prefer root-cause remediation from first principles over shortcut/band-aid patches.
- Do not regress behavior that was previously correct.
- Do not re-open issues already resolved in earlier cycles.
- Do not leave stubs, TODOs, placeholders, empty bodies, or pass-through no-ops.

Validation requirements (targeted scope only):
- Run tests directly related to the files you changed. Do NOT run the full test suite.
- Run lint and typecheck on changed files only.
- Confirm each change closes the reported failure mode or requested gap.
- Confirm no collateral regressions in touched areas.
- The full test suite will be run in a separate verification step after this fix.

Documentation:
- If a fix changes user-visible behavior, CLI output, configuration, or API contracts, update all affected documentation (README, docs/, changelogs, etc.) in the same step.

Output requirements:
- Return only a concise follow-up summary:
  - which issues were fixed,
  - which adjustments were applied,
  - what changed,
  - what validation was run and results,
  - any remaining risk or blocked checks.
- Do not include conversational prefaces or follow-up questions.
