Workspace billing handoff
We need to know which
Slack workspace you are upgrading.
Checkout is a browser handoff for billing, but workspace identity still comes from a Slack-linked browser session. Install or re-authorize from this browser, or return through the secure workspace upgrade path in Slack.
Why this handoff exists
The browser needs a verified workspace context before it can open checkout for the correct customer boundary.
That context comes from Slack install or re-authorization, not from a normal username and password flow.
Browser boundary
Billing happens here. Gameplay remains in Slack.
This page only exists to restore the installer/admin browser session and attach the purchase to the right workspace. Players still join, vote, and receive prompts in Slack.