fix: serve llms exports dynamically

[voidborne-d]

Summary

• switch llms.txt and llms-full.txt routes from force-static to force-dynamic
• keep paginated llms-full.txt/:page exports dynamic as well
• add a regression test that locks the rendering strategy for these routes

Why

Closes #3882. New pages were not appearing in /llms.txt and /llms-full.txt immediately because these routes were statically rendered. These exports are effectively live machine-readable indexes, so serving them dynamically keeps them aligned with the latest published content.

Validation

• Added route config regression test for the llms export routes
• I could not run the Bun test suite in this environment because bun is not preinstalled here

[changeset-bot]

🦋 Changeset detected

Latest commit: 55bf0b3

The changes in this PR will be included in the next version bump.

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gitbook	Patch

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