fix: drop unused React Query imports from generated router

The tanstack-query branch of the router template imports ReactNode,
QueryClient and the TanstackQueryProvider default export whenever the add-on
is enabled, but ReactNode and TanstackQueryProvider are only referenced inside
the tRPC `Wrap` block and QueryClient is never referenced at all. Generated
projects set `noUnusedLocals: true`, so a fresh scaffold ships code that
violates its own tsconfig.

Gates the two tRPC-only imports behind `addOnEnabled.tRPC` and removes the
QueryClient import outright.

setupRouterSsrQueryIntegration is deliberately left alone — it is used, and
removing it silently breaks SSR query dehydration.

Author: WaryaWayne

.changeset/router-unused-imports.md

@@ -0,0 +1,12 @@
+---
+'@tanstack/create': patch
+---
+
+Drop unused React Query imports from the generated React `router.tsx`. The
+`tanstack-query` branch imported `ReactNode`, `QueryClient` and the
+`TanstackQueryProvider` default export whenever the add-on was enabled, but
+`ReactNode` and `TanstackQueryProvider` are only referenced inside the tRPC
+`Wrap` block and `QueryClient` was never referenced at all. Generated projects
+set `noUnusedLocals: true`, so a fresh scaffold shipped code that violates its
+own tsconfig. The two tRPC-only imports are now gated behind
+`addOnEnabled.tRPC` and the `QueryClient` import is removed.

packages/create/src/frameworks/react/project/base/src/router.tsx.ejs

@@ -1,10 +1,9 @@
 import { createRouter as createTanStackRouter } from '@tanstack/react-router'
 import { routeTree } from './routeTree.gen'
-<% if (addOnEnabled['tanstack-query']) { %>
-import type { ReactNode } from 'react'
-import { QueryClient } from '@tanstack/react-query'
+<% if (addOnEnabled['tanstack-query']) { %><% if (addOnEnabled.tRPC) { %>
+import type { ReactNode } from 'react'<% } %>
 import { setupRouterSsrQueryIntegration } from "@tanstack/react-router-ssr-query";
-import TanstackQueryProvider, { getContext } from './integrations/tanstack-query/root-provider'
+import <% if (addOnEnabled.tRPC) { %>TanstackQueryProvider, <% } %>{ getContext } from './integrations/tanstack-query/root-provider'
 <% } %>
 
 export function getRouter() {