[Bug]: Database not found

### Problem description

### Description

When attempting to delete a KV database created through the **Deno Subhosting API**, the API returns a `404 Database not found` error — even though the same database is listed successfully via the listing endpoint.

### Steps to Reproduce

1. Create a KV database using the Subhosting API:

```bash
POST https://api.deno.com/v1/organizations/{orgId}/databases
```
2. Verify the database appears in the listing:

```bash
GET https://api.deno.com/v1/organizations/{orgId}/databases
```

Example response:

```json
[
{
"id": "34f4e783-54e3-4b9f-9496-41e549178b94",
"organizationId": "my_subhosting_org",
"createdAt": "2025-10-18T23:56:15.891912Z"
}
]
```
3. Attempt to delete the database:

```bash
DELETE https://api.deno.com/v1/organizations/{orgId}/databases/{dbId}
```
4. The API responds with:

```
{
"error": "Database not found"
}
```

### Additional Notes

* It’s unclear whether deletion should occur under `/projects/{projectId}/databases/{dbId}` instead of `/organizations/{orgId}/databases/{dbId}`.
* Clarification in the API docs or a consistent delete endpoint would be helpful.

### Steps to reproduce

### Steps to Reproduce

1. Create a KV database using the Subhosting API:

```bash
POST https://api.deno.com/v1/organizations/{orgId}/databases
```
2. Verify the database appears in the listing:

```bash
GET https://api.deno.com/v1/organizations/{orgId}/databases
```

Example response:

```json
[
{
"id": "34f4e783-54e3-4b9f-9496-41e549178b94",
"organizationId": "my_subhosting_org",
"createdAt": "2025-10-18T23:56:15.891912Z"
}
]
```
3. Attempt to delete the database:

```bash
DELETE https://api.deno.com/v1/organizations/{orgId}/databases/{dbId}
```
4. The API responds with:

```
{
"error": "Database not found"
}
```

### Expected behavior

### Expected Behavior

The `DELETE` request should successfully remove the database, matching the resource ID returned from the listing endpoint.

### Actual Behavior

The API returns `404 Database not found`, even though the database exists and is visible via the list endpoint.

### Environment

### Environment

* Organization type: **Subhosting**
* API base: `https://api.deno.com/v1`
* API version: Latest (as of Oct 2025)
* Node version: `v22.17.0`
* macOS: `12.x` (Intel)

### Possible solution

_No response_

### Additional context

_No response_