fix: bot detection and captcha files optional loading & CIDR validation

[kushalshit27]

🔧 Changes

This PR addresses the issue where the directory format parser required bot-detection.json and captcha.json files to exist in the attack-protection/ directory, causing deployments to fail.

📚 References

• Fixes Bot Detection & Captcha are breaking builds. #1199

🔬 Testing

• Manual Testing

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.66667% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.07%. Comparing base (1914ea2) to head (4ebec06).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
src/context/directory/handlers/attackProtection.ts	58.82%	0 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1200      +/-   ##
==========================================
- Coverage   80.11%   80.07%   -0.04%     
==========================================
  Files         134      134              
  Lines        5285     5290       +5     
  Branches     1076     1079       +3     
==========================================
+ Hits         4234     4236       +2     
  Misses        590      590              
- Partials      461      464       +3     

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