Handle a missing last name, we need a legal name Plaid.

[todo]

rest-api/pkg/controller/plaid.go

Lines 225 to 230 in 143a183

	// TODO Handle a missing last name, we need a legal name Plaid.
	// Should this be considered an error state?
	}
	var phoneNumber string
	if me.Login.PhoneNumber != nil {

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This issue was generated by todo based on a TODO comment in 143a183. It's been assigned to @elliotcourant because they committed the code.