Felipe Cardoso 60ebeaa582 test(safety): add comprehensive tests for safety framework modules ...

Add tests to improve backend coverage from 85% to 93%:

- test_audit.py: 60 tests for AuditLogger (20% -> 99%)
  - Hash chain integrity, sanitization, retention, handlers
  - Fixed bug: hash chain modification after event creation
  - Fixed bug: verification not using correct prev_hash

- test_hitl.py: Tests for HITL manager (0% -> 100%)
- test_permissions.py: Tests for permissions manager (0% -> 99%)
- test_rollback.py: Tests for rollback manager (0% -> 100%)
- test_metrics.py: Tests for metrics collector (0% -> 100%)
- test_mcp_integration.py: Tests for MCP safety wrapper (0% -> 100%)
- test_validation.py: Additional cache and edge case tests (76% -> 100%)
- test_scoring.py: Lock cleanup and edge case tests (78% -> 91%)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-04 19:41:54 +01:00

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