docs: add TanStack Router integration guide using ensureQueryData

[7nohe]

This pull request updates the documentation to provide a more comprehensive and practical guide for integrating TanStack Router with OpenAPI React Query Codegen, clarifies file naming, and improves the feature summary on the main index page. The main focus is on enhancing the TanStack Router example with detailed usage patterns for data loading, prefetching, SSR, and cache configuration.

Documentation improvements for TanStack Router integration:

• Expanded the tanstack-router.md example to include detailed instructions and code samples for route data loading with ensureQueryData, prefetching on hover/touch, SSR/TanStack Start usage, router configuration for cache freshness, and important notes about parameter parsing.
• Clarified that the example is for TanStack Router, not Next.js, and updated the description accordingly.

General documentation and naming clarifications:

• Fixed a typo in the generated file list: changed suspenses.ts to suspense.ts in the introduction guide for accuracy.
• Updated the feature summary on the main docs index to mention TanStack Router as a supported integration for prefetching and router integration, in addition to Next.js and Remix.

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Project	Deployment	Review	Updated (UTC)
openapi-react-query-codegen	Ready	Preview, Comment	Dec 16, 2025 1:06pm

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	98.62% (🎯 95%)	1869 / 1895
🔵	Statements	98.62% (🎯 95%)	1869 / 1895
🔵	Functions	96.2% (🎯 95%)	76 / 79
🔵	Branches	94.95% (🎯 90%)	226 / 238

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