docs: add TS example in core (#824)

examples/docs/node/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "@letta-ai/core",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "example": "node --no-warnings --import 'data:text/javascript,import { register } from \"node:module\"; import { pathToFileURL } from \"node:url\"; register(\"ts-node/esm\", pathToFileURL(\"./\"));' example.ts",
+    "build": "tsc"
+  },
+  "dependencies": {
+    "@letta-ai/letta-client": "^0.1.17"
+  },
+  "devDependencies": {
+    "@types/node": "^22.12.0",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.7.3"
+  }
+}