fix(vercel-edge): fix route generation

[smaeda-ks]

It seems routeRules generates invalid routes when using the vercel-edge preset.

This is because nitro only creates pretender functions for the vercel preset:

nitro/src/presets/vercel.ts

Lines 51 to 85 in 4585ca8

	// Write prerender functions
	const rules = Object.entries(nitro.options.routeRules).filter(
	([_, value]) => value.cache && (value.cache.swr || value.cache.static)
	);
	for (const [key, value] of rules) {
	if (!value.cache) {
	continue;
	} // for type support
	const funcPrefix = resolve(
	nitro.options.output.serverDir,
	".." + generateEndpoint(key)
	);
	await fsp.mkdir(dirname(funcPrefix), { recursive: true });
	await fsp.symlink(
	"./" + relative(dirname(funcPrefix), nitro.options.output.serverDir),
	funcPrefix + ".func",
	"junction"
	);
	let expiration: boolean | number = 60;
	if (value.cache.static) {
	expiration = false;
	} else if (typeof value.cache.swr === "number") {
	expiration = value.cache.swr;
	}
	await writeFile(
	funcPrefix + ".prerender-config.json",
	JSON.stringify({
	expiration,
	allowQuery: key.includes("/**") ? ["url"] : undefined,
	})
	);
	}

and the generateEndpoint function isn't considering the vercel-edge preset:

nitro/src/presets/vercel.ts

Lines 226 to 234 in 4585ca8

	function generateEndpoint(url: string) {
	if (url === "/") {
	return "/__nitro-index";
	}
	return url.includes("/**")
	? "/__nitro-" +
	withoutLeadingSlash(url.replace(/\/\*\*.*/, "").replace(/[^a-z]/g, "-"))
	: url;
	}

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #1071 (649f418) into main (7ae95d2) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1071      +/-   ##
==========================================
- Coverage   67.32%   67.32%   -0.01%     
==========================================
  Files          62       62              
  Lines        6292     6295       +3     
  Branches      707      709       +2     
==========================================
+ Hits         4236     4238       +2     
  Misses       2042     2042              
- Partials       14       15       +1     

Impacted Files	Coverage Δ
src/presets/vercel.ts	76.79% <100.00%> (-0.13%)	⬇️

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[pi0]

Thanks 💯