I will fix the 5 code issues you requested (unused imports, magic numbers, duplicate imports),
but you haven't provided any files to edit.

What I need from you:
- Add the Python source file(s) that contain the issues to this chat. Provide the exact full path(s)
  (for example: src/myapp/main.py or package/module.py). Up to 5 files is fine.
- If you want me to scan the whole repo instead, paste the tree or the files you want changed.

Planned changes (brief):
- Remove unused imports and keep necessary imports (optionally sort/group imports).
- Remove duplicate imports (keep one canonical import per file).
- Replace magic numbers with module-level constants (UPPER_SNAKE_CASE) and use those constants.
- Make minimal, behavior-preserving changes and add brief comments for constants if needed.

Once you add the files, I will:
1) Describe the exact edits in a few short sentences.
2) Provide precise SEARCH/REPLACE blocks (one per change) that you can apply.
3) Suggest one or two shell commands to run (lint/tests).

I will not modify TODO.md as requested.
