chore: .gitignore blanket *.txt exclusion may hide important files

[CodeMonkeyCybersecurity]

Summary

The .gitignore contains *.txt which excludes ALL text files from the repository. This is overly broad and may hide important files like:

• NOTICE.txt (license compliance)
• requirements.txt (Python dependencies)
• TODO.txt
• Any other legitimate .txt files

Current State

#claude
*this-session-is-being-continued-from-a-previous-co.txt
*.txt

Proposed Fix

Replace *.txt with specific exclusions:

# Claude session files
*this-session-is-being-continued-from-a-previous-co.txt

Note

The *.json blanket exclusion was already fixed in this PR (it was excluding package.json).