cli: remove placeholder service discovery workaround in create-dev-server-config.ts

Tracking issue for a TODO found in `packages/cli/src/bin/utils/create-dev-server-config.ts`:

```ts
// @todo - remove this when we have a real service discovery
```

Remove this placeholder logic once a real service discovery mechanism is implemented.

Start with packages/cli/src/bin/utils/create-dev-server-config.ts and inspect the TODO and surrounding placeholder service-discovery logic. Confirm that a real service discovery mechanism is available before changing this tracking issue. Done means the workaround and its TODO are removed without leaving the development-server configuration dependent on placeholder behavior.

Written by the indexing model from the issue text.