What is the purpose of ?team=1? It is probably worth calling out in a code comment, since it isn't entirely obvious why (or even if) that is required?

?team=1 is the only difference between the actions of the "Create a Cody Pro team" and "Upgrade yourself to Pro" buttons. The checkout UI should initiate slightly differently. I don't remember the exact diff in the Figma, but there was something, maybe the initial value of the seat counter.

I'll call this out in a comment.

Addressed it in https://github.com/sourcegraph/sourcegraph/pull/62790/commits/8ae664cab7eb704d8d38011f4a79b2ffebe16149

⚠️ Rather than defining this as a constant in two places, can we instead just make this a function instead? And that way we only have the logic for what the subscription management URL should be, in only one place?

e.g.

// getManageSubscriptionUrl returns the URL that a user should navigate to in order
// to manage their Cody Pro subscription.
export function getManageSubscriptionUrl(): string {
    ...
}

Having a "single source of truth" for something important like that seems like it would be in our best interest. Since otherwise, it's super easy to forget to find all places where we have code to generate the URL. (And therefore, could use a different name or do it in such a way we'd miss it when we need to modify the URL when we go live with the UI migrated to the Sourcegraph.com.)

Addressed in https://github.com/sourcegraph/sourcegraph/pull/62790/commits/d9c85597355147298fdcb32cd74953d75c51832b