add langchain models into cli dependencies

Author: azhong-git

package.json

@@ -64,11 +64,13 @@
   "peerDependencies": {
     "@langchain/core": ">=1.1.31"
   },
-  "devDependencies": {
+  "optionalDependencies": {
     "@langchain/anthropic": "^1.0.0",
-    "@langchain/core": "^1.1.31",
     "@langchain/google-genai": "^2.1.24",
-    "@langchain/openai": "^1.2.12",
+    "@langchain/openai": "^1.2.12"
+  },
+  "devDependencies": {
+    "@langchain/core": "^1.1.31",
     "@types/jest": "^29.5.14",
     "@types/lodash": "^4.17.16",
     "@types/merge-images": "^1.2.4",