CodeBuild Cache Script Fix

🔧 CodeBuild Fix

Fixed Docker Manifest Parsing:

• Improved digest extraction with multiple fallback methods
• More robust jq parsing for Docker manifest responses
• Handles edge cases where specific digest cannot be determined
• Prevents parsing errors that caused pre-build phase failures

What This Fixes:

• CodeBuild pre-build phase should now complete successfully
• Resolves jq: error: Cannot index array with string "Descriptor"
• Enables reliable Docker base image caching in ECR

Testing:
This release tests the complete GitHub Actions + OIDC + CodeBuild pipeline with all fixes applied:

• ✅ OIDC authentication with required permissions
• ✅ Dynamic repository detection
• ✅ Improved Docker manifest parsing