add in-mem llm cache

packages/components/package.json

@@ -57,6 +57,7 @@
         "node-fetch": "^2.6.11",
         "node-html-markdown": "^1.3.0",
         "notion-to-md": "^3.1.1",
+        "object-hash": "^3.0.0",
         "pdf-parse": "^1.1.1",
         "pdfjs-dist": "^3.7.107",
         "pg": "^8.11.2",
@@ -73,6 +74,7 @@
     "devDependencies": {
         "@types/gulp": "4.0.9",
         "@types/node-fetch": "2.6.2",
+        "@types/object-hash": "^3.0.2",
         "@types/pg": "^8.10.2",
         "@types/ws": "^8.5.3",
         "gulp": "^4.0.2",