chore: init `@tanstack/start` example

[juliusmarminge]

playground for exploration of a better integration path

based on https://github.com/TanStack/router/tree/main/examples/react/start-basic-react-query

[railway-app[bot]]

🚅 Deployed to the trpc-pr-5912 environment in trpc-sse-and-websockets	Service	Status	Web	Updated (UTC)
next-sse-chat	😴 Sleeping (View Logs)	Web	Aug 27, 2024 at 9:45 am
next-prisma-websockets-starter	😴 Sleeping (View Logs)		Jul 22, 2024 at 10:02 pm

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
next-prisma-starter	✅ Ready (Inspect)	Visit Preview		Jul 22, 2024 9:48pm
og-image	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 22, 2024 9:48pm

1 Skipped Deployment

| Name | Status | Preview | Comments | Updated (UTC) | | :--- | :----- | :------ | :------- | :------ | | **www** | ⬜️ Ignored ([Inspect](https://vercel.com/trpc/www/EnTAVzQDM8M7RkhkiSkEJ3XwCy2A)) | [Visit Preview](https://www-git-tsr-trpc.vercel.app) | | Jul 22, 2024 9:48pm |