Summary

• tune pressure scoring toward Pathfinder-style distance and density thresholds
• switch congestion and pressure hotspot gating from fixed occupant counts to density-based thresholds
• align scenario pressure tracking and result artifacts with 1.0 m proximity scoring and the 3.55 occupants/m^2 reference density
• update regression tests after rebasing onto the latest origin/main

Related Issue

• Closes [Implementation Task][Domain] 압력 피드백과 튜닝 v1 추가 #214

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
• Not run (reason below)

Risks / Follow-up

• Pathfinder documents the distance and density primitives directly, but not a single official crush-critical duration threshold, so this change keeps the existing 2.0 sec exposure window while aligning the density and proximity thresholds first.