Review Implementation
Review the implementation, and optimize for maintainability.
Workflow
1. Validate Completeness
Read code against the goal, verify that all planned file edits are present and compliant. And the code is able to run without obvious bugs. If found anything missing or wrong, stop and report the fact in detail.
2. Enforce Code Quality
If validation passes, reflect meticulously according to the code quality gate. Report back with a comprehensive and ruthless simplification enforcement.