Take updates from trevato/cs #376

This repository follows trevato/cs. Both have moved since they last agreed: 14 changes there, 133 here, and 32 files changed on both sides: README.md, src/client/bodies.test.ts, src/client/bots.test.ts, src/client/bots.ts, src/client/earshot.test.ts, src/client/earshot.ts, src/client/hud.test.ts, src/client/hud.ts, src/client/input.test.ts, src/client/input.ts, src/client/main.ts, src/client/motion.ts, src/client/physics.test.ts, src/client/physics.ts, src/client/plan.test.ts, src/client/plan.ts, src/client/renderer.test.ts, src/client/renderer.ts, src/client/report.test.ts, src/client/report.ts, src/client/settings.test.ts, src/client/settings.ts, src/client/weapons.test.ts, src/client/weapons.ts, src/client/world.test.ts, src/client/world.ts, src/db.test.ts, src/db.ts, src/pages/game.test.ts, src/pages/game.ts, src/readme.test.ts, src/rl/arena.test.ts.

The parent's main is staged in this repository at refs/following/main (48b4494). The crew merges it into a branch, keeps this repository's direction where the two cannot both be kept, and proposes the result here as a pull.