Adds --allow-domains-file flag to load allowed domains from a file instead of only accepting them via command line. Useful for managing longer domain lists.

Changes

• CLI flag: Added --allow-domains-file <path> option
• File parsing: Created parseDomainsFromFile() that handles:
  • One domain per line
  • Comments (lines starting with #)
  • Whitespace trimming and empty line filtering
• Flexibility: Made --allow-domains optional; both flags can be combined with automatic deduplication
• Error handling: Clear error messages for missing files or empty domain lists
• Tests: 9 new unit tests covering parsing, comments, errors, and line endings

Example

# Create domains file
cat > domains.txt << EOF
# GitHub
github.com
api.github.com

# NPM
npmjs.org
EOF

# Use file alone
awf --allow-domains-file domains.txt 'curl https://api.github.com'

# Or combine with CLI domains
awf --allow-domains example.com --allow-domains-file domains.txt 'curl ...'

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