Problem deploying to Deno Deploy when working with workspaces

Description
In a monorepo setup with multiple workspaces, deployment to Deno Deploy fails due to missing dependencies when setting a workspace as the project root.

Structure Example
```
/
├── libs/
│ └── mylibs.ts
└── web/
└── fresh_files/...
```
The web workspace imports from the libs workspace, like so:

```ts
import { someFn } from '@project/libs';
```

**Problem**

When deploying to Deno Deploy, you need to set /web/ as the project root. However, Deno Deploy does not include files outside the root directory (/web/) in the deployment bundle. As a result, any import from /libs/ fails with a runtime error due to missing files.

**Expected Behavior**
Deno Deploy should either:

Support importing files outside the root directory when using workspaces, or

Provide a mechanism to include these dependencies explicitly during build or deploy time.

**Environment**
Monorepo with multiple workspaces (/libs, /web)

**Deployment platform:** Deno Deploy

**Framework used:** fresh 2.0 alpha