Add complete Tryton RPC client implementation with examples and tests

package.json

@@ -0,0 +1,47 @@
+{
+    "name": "tryton-rpc-client-js",
+    "version": "1.0.0",
+    "description": "JavaScript RPC Client for Tryton ERP Server",
+    "main": "src/client.js",
+    "scripts": {
+        "test": "node examples/test.js",
+        "example": "node examples/basic.js",
+        "lint": "eslint src/ examples/",
+        "start": "node examples/test.js"
+    },
+    "keywords": [
+        "tryton",
+        "rpc",
+        "client",
+        "javascript",
+        "nodejs",
+        "erp",
+        "json-rpc"
+    ],
+    "author": "Your Name",
+    "license": "GPL-3.0",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/your-username/tryton-rpc-client-js.git"
+    },
+    "bugs": {
+        "url": "https://github.com/your-username/tryton-rpc-client-js/issues"
+    },
+    "homepage": "https://github.com/your-username/tryton-rpc-client-js#readme",
+    "engines": {
+        "node": ">=12.0.0"
+    },
+    "files": [
+        "src/",
+        "examples/",
+        "README.md",
+        "LICENSE",
+        "CHANGELOG.md"
+    ],
+    "devDependencies": {
+        "eslint": "^8.0.0"
+    },
+    "dependencies": {},
+    "optionalDependencies": {},
+    "peerDependencies": {}
+}