Module unified 

Unified Command Evaluator - Phase 5

Merges CommandPolicyEvaluator with command_safety module to provide comprehensive command validation combining:

• Policy-based rules (allow/deny prefixes, regexes, globs)
• Safety rules (subcommand validation, dangerous patterns)
• Shell parsing (decompose complex scripts)
• Audit logging & caching

Structs

EvaluationResult

Complete evaluation result

PolicyAwareEvaluator

Policy-aware evaluator adapter for backward compatibility with CommandPolicyEvaluator

UnifiedCommandEvaluator

Unified command evaluator combining policies and safety rules

Enums

EvaluationReason

Detailed reason for evaluation result