Security Checks Implementation & Validation (Milestone 2)

[chrisguindon]

Parent issue: #1331

Objective

Develop and validate the security verification checks for the pre-publish framework.

Deliverables

• Implementation of pre-publish checks for:
  • Name-squatting detection
  • Blocklist enforcement
  • Secret and credential scanning
  • YARA scanning
  • ClamAV or equivalent malware detection
• Automated test coverage for each check
• Validation on staging environment
• Documentation for configuration, extensibility, and maintenance