Move vue-router from devDependencies to dependencies

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -45,6 +45,7 @@
     "vue": "^3.2.45",
     "vue-axios": "^3.5.2",
     "vue-chartjs": "^5.2.0",
+    "vue-router": "^4.4.0",
     "vue-sweetalert2": "^5.0.11",
     "vue-toast-notification": "^3.1.2",
     "vuedraggable": "^4.1.0"
@@ -78,7 +79,6 @@
     "ts-node": "^10.9.2",
     "typescript": "^5.5.3",
     "vite": "^4.0.0",
-    "vitest": "^0.25.6",
-    "vue-router": "^4.4.0"
+    "vitest": "^0.25.6"
   }
 }