Aurora Scharff 7cb68c1282 docs: create client-side fetching guide (#96341) ...

## What changed

- Expands the SPA data-fetching guidance with focused SWR and TanStack
Query guides.
- Covers client-only fetching, optional Server Component seeding, shared
cache identities, and optimistic mutations.
- Explains how the Next.js server and client caches relate to
library-owned browser caches, including SWR `preload` and TanStack Query
hydration with Cache Components.
- Aligns the examples with `next-spa-patterns` and the team chat demo.

## Validation

- Prettier and diff checks pass for the updated guides.
- `next-spa-patterns` passes TypeScript checks.

2026-08-11 11:42:48 +00:00

16 KiB

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