Add JavaScript bindings and WASM support

Co-authored-by: Matija Kecman <matijak@google.com>
Co-authored-by: Sebastian Noreña Rendón <sebas.norena@creativa77.com.ar>
Co-authored-by: Kyle Bayes <kylebayes@google.com>
PiperOrigin-RevId: 826094938
Change-Id: Id2658a187bc078056f4410c71202696753319e64

wasm/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "mujoco_wasm",
+  "version": "1.0.0-alpha.1",
+  "description": "MuJoCo JavaScript Bindings",
+  "directories": {
+    "example": "examples",
+    "lib": "lib",
+    "test": "tests"
+  },
+  "scripts": {
+    "test": "node --loader ts-node/esm --trace-warnings tests/run-tests.mjs",
+    "dev:sandbox": "vite --config tests/sandbox/vite.sandbox.config.ts",
+    "build:sandbox": "vite build --config tests/sandbox/vite.sandbox.config.ts",
+    "dev:demo": "vite --config demo_app/vite.demo.config.ts",
+    "build:demo": "vite build --config demo_app/vite.demo.config.ts"
+  },
+  "author": "Google DeepMind",
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/jasmine": "^5.1.8",
+    "@types/node": "^24.1.0",
+    "jasmine": "^5.9.0",
+    "three": "^0.178.0",
+    "ts-node": "^10.9.2",
+    "typescript": "5.8.2",
+    "vite": "^7.0.6"
+  },
+  "type": "module"
+}