chore: bump react-router and related packages to 7.15.0

Author: auttomus

frontend/package.json

@@ -13,8 +13,8 @@
   },
   "dependencies": {
     "@apollo/client": "^4.1.9",
-    "@react-router/node": "7.14.0",
-    "@react-router/serve": "7.14.0",
+    "@react-router/node": "7.15.0",
+    "@react-router/serve": "7.15.0",
     "clsx": "^2.1.1",
     "framer-motion": "^12.38.0",
     "graphql": "^16.14.0",
@@ -33,7 +33,7 @@
     "@graphql-codegen/typescript": "^6.0.1",
     "@graphql-codegen/typescript-operations": "^6.0.1",
     "@graphql-codegen/typescript-react-apollo": "^4.4.2",
-    "@react-router/dev": "7.14.0",
+    "@react-router/dev": "7.15.0",
     "@tailwindcss/vite": "^4.2.2",
     "@types/node": "^22",
     "@types/react": "^19.2.14",