feat: implement on:response hook

[Hebilicious]

🔗 Linked issue

Resolves #1396

❓ 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

WIP

There's a one issue with this implementation :

toNodeListener isn't compatible with defineNitroResponse, so the presets would need to be refactored to use localCall, or h3s toNodeListener would need to be updated to accept a callback function that can modify the response.

For the hook API name we could use extendResponse instead of modifyResponse

📝 Checklist

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

[pi0]

I don't think implemeting hook this way would be the best idea. Also as you have noticed, only worker presets using localFetch could benefit this and this is against nitro goals.

[pi0]

We have render:response to modify the hook already to modify renderer responses. For genetic hook, if we ever gonna support it, it might be coming from h3. Let's keep the discussion under #1396.

[pi0]

Upstream: unjs/h3#447