/review

After /rpi/implement - review code quality

# Post-Implementation Review

**Input:** $ARGUMENTS

Parse the input above. It may be:
- Empty (review everything from this conversation)
- A specific scope ("just the API layer")
- Particular concerns to focus on ("check for race conditions")

## Objective

Assess the implementation completed in this conversation. Identify issues, validate against the plan, and surface actionable feedback.

## Process

### 1. Identify What Changed

- Review the files modified during implementation
- If a specific scope was provided, focus on that area
- Otherwise, review all changes from the current phase
...