Workers Routes matching does not work with orange-clouded/proxied/O2O DNS

### What versions & operating system are you using?

```
System:
OS: macOS 26.1
CPU: (10) arm64 Apple M1 Max
Memory: 446.03 MB / 32.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 22.17.1 - /Users/timkelty/.nvm/versions/node/v22.17.1/bin/node
npm: 10.9.2 - /Users/timkelty/.nvm/versions/node/v22.17.1/bin/npm
pnpm: 8.15.4 - /opt/homebrew/bin/pnpm
npmPackages:
@cloudflare/unenv-preset: ^2.4.1 => 2.7.9
@cloudflare/vitest-pool-workers: ^0.10.5 => 0.10.5
wrangler: ^4.26.0 => 4.46.0
```

### Please provide a link to a minimal reproduction

https://github.com/timkelty/reprocase-cloudflare-workers-routes

### Describe the Bug

When a DNS record is O2O, worker routes matching does _not_ work as expected. In this case, the _only_ pattern that seems to match is `*/*`.

## Cloudflare Account A (SaaS customer)

### DNS

```
mysite.com CNAME gateway.saasprovider.com (proxy status: proxied)
```

----------

## Cloudflare Account B (SaaS provider)

### Workers

Note: in reality, these workers routes are not set via wrangler, but I'm showing it that way to simplify. The behavior is the same.

#### `gateway_worker`

```
{
"routes": [
{
"pattern": "gateway.saasprovider.com",
"custom_domain": true
}
]
}
```

#### `gateway_worker_beta`

```
{
"routes": [
{
"pattern": "mysite.com/*",
"zone_id": ""
}
]
}
```

With this configuration, a request to `https://mysite.com/` will be incorrectly routed to the `gateway_worker`, even though the pattern matches for `gateway_worker_beta`.

The request is routed to `gateway_worker`, only because of the `custom_domain` on the worker. Without it, you'll get a Cloudflare error page.

If the record is _not-proxied_ (gray cloud), it will be routed to `gateway_worker_beta` as expected.

The only way to intercept these orange-clouded requests with a worker route is by using a `*/*` pattern, which in our case is not an option.

Relevant links:
- https://developers.cloudflare.com/cloudflare-for-platforms/workers-for-platforms/get-started/hostname-routing/#orange-to-orange-o2o-behavior
- https://developers.cloudflare.com/workers/configuration/routing/

### Please provide any relevant error logs

_No response_

Bắt đầu với bản tái hiện tối thiểu được liên kết và so sánh hành vi orange-to-orange được ghi lại trong tài liệu với cấu hình định tuyến Workers được hiển thị trong issue. Xác minh các request proxied và non-proxied đối với các mẫu `mysite.com/*` và `*/*`; được xem là hoàn tất khi route worker cụ thể khớp với các request proxied O2O như mong đợi.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.