Roll packages with net removal

package.json

@@ -75,11 +75,11 @@
     "tesseract.js": "^7.0.0",
     "tiktoken": "^1.0.22",
     "turndown": "^7.2.2",
-    "zod": "^4.3.5",
+    "zod": "^4.3.6",
     "zustand": "5.0.7"
   },
   "devDependencies": {
-    "@posthog/nextjs-config": "^1.6.4",
+    "@posthog/nextjs-config": "~1.6.4",
     "@types/node": "^25.1.0",
     "@types/nprogress": "^0.2.3",
     "@types/prismjs": "^1.26.5",