Add snippets for nodejs here temporarily (#405)

* add admin snippets temporarily

* write node snippets

* run snippets

Author: morganchen12

firestore-temp/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "firestore-temp",
+  "version": "1.0.0",
+  "scripts": {
+    "compile": "cp ../tsconfig.json.template ./tsconfig.json && tsc"
+  },
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/chai": "^5.2.3",
+    "@types/mocha": "^10.0.10",
+    "chai": "^6.2.0",
+    "mocha": "^11.7.4"
+  },
+  "dependencies": {
+    "@google-cloud/firestore": "^8.0.0-pipelines.1"
+  }
+}