refactor: replace @google/generative-ai with @ai-sdk/google (#27)

* refactor: replace @google/generative-ai with @ai-sdk/google

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: use createGoogleGenerativeAI for API key configuration

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update Zod schemas to use discriminated unions

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: ensure at least one variant in Zod discriminated union

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove unused actions variable

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove duplicate sections declaration and update action sections

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema types and use process.env.GEMINI_API_KEY

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema to use z.union with type literal

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: restore original schema descriptions and remove unused imports

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema to use discriminatedUnion with proper descriptions

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema to use proper type casting for discriminated union

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema type casting for discriminated union

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update schema to use strict mode and proper type definitions

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: add type field to all schemas

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove unused schema variables

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove unused baseSchema variable

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove unused baseSchema variable and comments

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: implement token tracking using generateObject response

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update token tracking to use proper destructuring

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: implement token tracking in evaluator and add test

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* refactor: move maxTokens parameter to config.ts

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* feat: implement error handling for generateObject schema validation errors

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove lint errors in error handling utility

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* chore: clean up error handling utility

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove unused functionName parameter

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: remove functionName parameter from handleGenerateObjectError calls

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* fix: update DedupResponse import to type import

Co-Authored-By: Han Xiao <han.xiao@jina.ai>

* refactor: clean up

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Han Xiao <han.xiao@jina.ai>

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "agentic-search",
+  "name": "node-deepresearch",
   "version": "1.0.0",
   "main": "index.js",
   "scripts": {
@@ -14,20 +14,22 @@
     "test:watch": "jest --watch"
   },
   "keywords": [],
-  "author": "",
-  "license": "ISC",
+  "author": "Jina AI",
+  "license": "Apache-2.0",
   "description": "",
   "dependencies": {
-    "@google/generative-ai": "^0.21.0",
+    "@ai-sdk/google": "^1.0.0",
     "@types/cors": "^2.8.17",
     "@types/express": "^5.0.0",
     "@types/node-fetch": "^2.6.12",
+    "ai": "^4.1.21",
     "axios": "^1.7.9",
     "cors": "^2.8.5",
     "duck-duck-scrape": "^2.2.7",
     "express": "^4.21.2",
     "node-fetch": "^3.3.2",
-    "undici": "^7.3.0"
+    "undici": "^7.3.0",
+    "zod": "^3.22.4"
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",