Restore the dependency upgrades I reverted

The merged Renovate bumps were undone when I rsync'd a local tree over these repos while
pushing the contract tests — that local package.json was a pre-merge backup I had kept so
the PRs would be the source of the versions.

Re-applied and verified from a clean install (rm -rf node_modules package-lock.json &&
npm install && tsc && vite build), which is also what regenerates a lock file consistent
with all the bumps at once.

frontend/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "react": "^19.2.7",
     "react-dom": "^19.2.7",
-    "lucide-react": "1.25.0"
+    "lucide-react": "1.26.0"
   },
   "devDependencies": {
     "@tailwindcss/vite": "4.3.3",
@@ -20,7 +20,7 @@
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^6.0.3",
     "tailwindcss": "4.3.3",
-    "typescript": "^5.9.0",
+    "typescript": "^7.0.0",
     "vite": "^8.1.3"
   }
 }