Fix false positive detection of incomplete Change proposals
    
    The script was incorrectly detecting proposals as incomplete when they
    contained commented-out template text like:
    
    
    This caused valid proposals (e.g., Helm4) to be skipped even though
    they were ready for FESCo submission.
    
    Fix: Strip HTML comments before checking for category tags to ensure
    only active (uncommented) categories are detected.
    
    🤖 Generated with [Claude Code](https://claude.com/claude-code)
    
    Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>