feat: improve _routes.json generation

[schummar]

Changes

This is a result of the discussion in withastro/astro#13167. I found a quick win that makes things a lot better without additional risk. More could be done to generate smaller, correct solutions for even more cases - but as a first step I'm pretty happy with this.

Problem: When there are a lot of static pages (resulting in more than 100 combined include/exclude entries, the adapter would generate a _routes.json with a /* include and a truncated array of excludes. Even if having a few includes and no excludes instead would be a correct solution too - with the added benefit of no unnecessary function invocations.

Solution: I improved the condition which switches between the two options (option 1 = /* include + many excludes; option 2 = many includes, fewer excludes). Now option 2 is chosen if: there is a static 404 AND option 2 is below the limit.

Testing

I added two test cases with many static files. One with and one without a static 404 file.

Docs

Not sure if anything needs to be documented.

[changeset-bot]

🦋 Changeset detected

Latest commit: e843967

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

This PR includes changesets to release 10 packages

Name	Type
@astrojs/cloudflare	Minor
@test/astro-cloudflare-astro-dev-platform	Patch
@test/astro-cloudflare-astro-env	Patch
@test/astro-cloudflare-compile-image-service	Patch
@test/astro-cloudflare-external-image-service	Patch
@test/astro-cloudflare-wasm	Patch
@test/astro-cloudflare-no-output	Patch
@test/astro-cloudflare-routes-json	Patch
@test/astro-cloudflare-with-solid-js	Patch
@test/astro-cloudflare-wrangler-preview-platform	Patch

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[alexanderniebuhr]

This seems to make sense to me.