llm: updates, fixes, refactor, ...

Author: haraldschilly

src/.nvmrc

@@ -1 +1 @@
-lts/hydrogen
+20

src/packages/package.json

@@ -23,8 +23,8 @@
       "undici@<5.28.3": "^5.28.4",
       "postcss@<8.4.31": "^8.4.31",
       "retry-request@<7.0.1": "^7.0.2",
-      "@langchain/core": "^0.3.77",
-      "langchain": "^0.3.34",
+      "@langchain/core": "^1.1.6",
+      "langchain": "^1.2.1",
       "katex@<0.16.9": "^0.16.10",
       "nanoid@<3.3.8": "^3.3.8",
       "node-forge@<=1.3.1": "^1.3.2",