add initial marp implementation with sample content and build configuration

node_modules/webdriver-bidi-protocol/package.json

@@ -0,0 +1,30 @@
+{
+  "name": "webdriver-bidi-protocol",
+  "version": "0.2.8",
+  "description": "",
+  "main": "out/index.js",
+  "types": "out/index.d.ts",
+  "keywords": [
+    "webdriver",
+    "bidi",
+    "protocol"
+  ],
+  "author": "The Chromium Authors",
+  "license": "Apache-2.0",
+  "scripts": {
+    "test": "./tools/build.sh",
+    "format": "prettier -w 'out/**/*' 'src/**/*' 'test-d/**/*'"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/GoogleChromeLabs/webdriver-bidi-protocol.git"
+  },
+  "devDependencies": {
+    "@types/node": "^24.0.4",
+    "gts": "^6.0.2",
+    "parse5": "^8.0.0",
+    "prettier": "3.6.2",
+    "tsd": "0.33.0",
+    "typescript": "5.9.2"
+  }
+}