Third-party code and art/assets bundled: NONE.

Evaluated:
- Infiltrate The Building (Unity stealth inspiration): https://github.com/KelvinPeach/InfiltrateTheBuilding — not imported because the Unity runtime and asset provenance do not suit this lightweight Canvas 2D release.
- Matter.js (MIT): https://github.com/liabru/matter-js — not used: grid-free vision cones, dynamic stealth and line-of-sight are implemented with simple custom math; no rigid-body physics needed.

All four characters, clothes, expressions, shadows, scene graphics, speech bubbles and audio cues are drawn/generated by this game's original JavaScript and Canvas 2D. No external images, fonts, portraits or third-party code were copied.