feat: chat improvements (#280)

apps/web/package.json

@@ -37,7 +37,6 @@
     "@pierre/diffs": "^1.0.11",
     "@tabler/icons-react": "^3.36.1",
     "@tanstack/react-table": "^8.21.3",
-    "@tanstack/react-virtual": "^3.13.18",
     "@tiptap/core": "^3.19.0",
     "@tiptap/extension-bubble-menu": "^3.19.0",
     "@tiptap/extension-code": "^3.19.0",
@@ -93,6 +92,7 @@
     "react-dom": "19.2.3",
     "react-markdown": "^10.1.0",
     "react-resizable-panels": "^4.4.1",
+    "react-virtuoso": "^4.18.1",
     "recharts": "2.15.4",
     "remark-breaks": "^4.0.0",
     "remark-gfm": "^4.0.1",