feat: support signed URL patterns without route lookup

[0xtlt]

🔗 Linked issue

Discussion: https://github.com/orgs/adonisjs/discussions/5126

❓ Type of change

• 🐞 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

This PR adds support for generating signed URLs from route patterns without performing a route lookup.

It restores the disableRouteLookup behavior for the typed signedUrlFor helper, matching the legacy router.makeSignedUrl(..., { disableRouteLookup: true }) API.

Example:

signedUrlFor('/files/:key', { key: 'invoice.pdf' }, {
  disableRouteLookup: true,
  prefixUrl: 'https://example.com',
  qs: {
    download: true,
  },
})

When disableRouteLookup is enabled, the first argument is parsed as a route pattern and signed directly. Regular signedUrlFor calls still use route lookup and keep their existing route-name type safety.

This also adds runtime and type-level coverage for the new behavior.

Docs PR: adonisjs/v7-docs#67

📝 Checklist

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

[thetutlage]

We can make the params type-safe too by using the https://github.com/poppinss/types/blob/1.x/src/route.ts#L50 from the types package

[thetutlage]

Overall looks good to me!

[0xtlt]

@thetutlage Done, I used InferRouteParams for the pattern params.

Does it look good now?