[Domain] Add environment reaction state contract

[SilverSupplier]

Summary

• Add default environment reaction traits to domain agents.
• Add a domain resource contract for per-agent hazard and closure reaction state.
• Cover the new contract with focused domain tests while leaving simulation behavior unchanged.

Related Issue

• Closes Task-Crowd environment reaction state contract 추가 #221

Area

• Engine
• Domain
• Application
• Docs
• Build
• Analysis
• Chore

Architecture Check

• I kept the dependency direction application -> domain -> engine.
• I did not add Qt UI code to src/domain.
• I did not add domain or application dependencies to src/engine.
• I used src/ as the include root.

Verification

• cmake --preset windows-debug
• cmake --build --preset build-debug
• ctest --preset test-debug
• cmake --preset windows-debug-no-app
• cmake --build --preset build-no-app-debug
• ctest --preset test-no-app-debug
• Not run (reason below)

Risks / Follow-up

• This PR intentionally adds only the shared reaction-state contract; Fire/Smoke and Door Closure behavior changes remain follow-up work under Task-Fire/Smoke 및 문 폐쇄 시뮬레이션 상호작용 v2 #218.