# js/physics/camera/ — agents.md
Part of the modularization pass. Module map: `MODULES.md`; runtime model: `architecture.md`.

Installs into `P`: updatePopups, updateCameraTarget, decayCamera.

- The follow-cam: tracks the active bird / action zone inside the level bounds,
  eases and decays, and ages score popups. Consumes WORLD + VIEW for clamping.
- The "aim framing" test arm asserts the sling + action zone stay in view while
  aiming — keep that guarantee when changing targets or damping.