[KV Feedback]: improve Deno.KvCommitError message

### 🔍

- [x] Did you search for existing issues?

### Type of feedback

General feedback

### Description

I have a case where `delete()` atomic operator returns `{ok:true}` when deleting non-exist keys. This behavior confused me for half of a day because I thought it would return `{ok:false}` if key not found.

### Steps to reproduce (if applicable)

- use Deno playground to test DenoKV
- delete the any non-exist/wrong type key

### Expected behavior (if applicable)

Return `{ok:false}`

### Possible solution (if applicable)

I think it would be better if we replace `ok` property with `{status: int}`. We can implement the [SQLite response code system](https://www.sqlite.org/rescode.html) for case. It can offer a better debugging experience.

### Additional context

_No response_