Address FIXMEs

Address FIXME, TODO, and REFACTOR notes in the specified files.

Check arguments, chat history, or other context to determine which files to work on. If you can't figure it out with high confidence, ask the user. Do NOT work on all FIXMEs across the entire code base unless explicitly told to do so.

Once you know which files to check:

1. Search for FIXME, TODO, and REFACTOR comments in those specific files
2. List what you found with their locations
3. Propose fixes for each one
4. Get approval before making changes
5. Implement the approved fixes

Prioritize FIXME items first, then REFACTOR, then TODO.