fix: set context to avoid panic on token refresh

[scotwells]

When a user's access token was expired, the CLI would try to refresh the access token but it would encounter a panic because the context was nil.

This resolves the issue by passing the context through to the factory so it can be used when refreshing the access token.

panic: nil context

goroutine 1 [running]:
net/http.(*Request).WithContext(...)
        /opt/hostedtoolcache/go/1.25.6/x64/src/net/http/request.go:370
...

I confirmed after updating this code, that I could invoke the command successfully again and it would get a new access token.

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Follow up to #65

[gianarb]

Thanks!