[TEST] Certify vuln_intel_service - 100% Coverage

[JuanCS-Dev]

Service: vuln_intel_service
Parent Epic: #46

Current Status:

• Python files: 6
• Test files: 1
• Coverage: Unknown (needs validation)

Tasks:

• Run pytest --cov and analyze results
• Add tests for uncovered business logic
• Add tests for error paths
• Document defensive code (if <100%)
• Achieve 95%+ coverage
• Generate certification badge

Checklist:

cd backend/services/vuln_intel_service
pytest --cov --cov-report=html --cov-report=term
# Target: 95%+ coverage (Padrão Pagani)

Acceptance Criteria:

• Coverage: ≥95%
• All tests passing
• No mocks of production logic
• Defensive code documented
• Certification report generated

Estimativa: 2-4 horas
Análise: docs/analysis/project_analysis_2025-10-15.md