Keep typescript on 6.x for typescript-eslint peer compatibility; align @types/node override

Co-authored-by: data-douser <70299490+data-douser@users.noreply.github.com>

Author: Copilot

extensions/vscode/package.json

@@ -235,7 +235,7 @@
     "glob": "^13.0.6",
     "mocha": "^11.8.0",
     "prettier": "^3.9.6",
-    "typescript": "^7.0.2",
+    "typescript": "^6.0.3",
     "typescript-eslint": "^8.67.0",
     "vitest": "^4.1.10"
   }