🤖 Fixed: the space menu's "Upgrade" item could silently do nothing. It opened
the home page's checkout in a new tab via a script call, which some browsers'
ad/privacy-blocker extensions treat as a popup and quietly swallow — no error,
no new tab, no indication anything was blocked. It's now a real link, the same
kind any ordinary "opens in a new tab" link uses, so it isn't caught by that
blocking behavior.

Also: if a space's region has no upgrade plans to offer, the picker used to
open with a silent blank gap where the plan buttons belong. It now says so
plainly instead.