move InMemoryDB to system

packages/system/package.json

@@ -21,6 +21,7 @@
     "@peculiar/webcrypto": "^1.4.3",
     "@types/debug": "^4.1.8",
     "@types/jest": "^29.5.1",
+    "@types/lokijs": "^1.5.14",
     "@types/node": "^20.5.9",
     "@types/uuid": "^9.0.2",
     "@types/ws": "^8.5.5",
@@ -39,6 +40,7 @@
     "debug": "^4.3.4",
     "eventemitter3": "^5.0.1",
     "isomorphic-ws": "^5.0.0",
+    "lokijs": "^1.5.12",
     "uuid": "^9.0.0",
     "ws": "^8.14.0"
   }