auth login --services: cloud-platform is re-added after being deselected in the scope picker #918

Version: gws 0.22.5 (@googleworkspace/cli via npm), node v20.11.1, Linux 6.8.0

auth login --services <svc> opens the scope picker. Scopes deselected in the picker can still end up in the authorize URL. cloud-platform is preselected and is re-added regardless of the selection.

Repro

1. gws auth login --services gmail
2. In the picker, deselect everything except gmail.send. Header reads Select OAuth scopes 1/17 selected.
3. Enter.
4. Read the printed authorize URL.

scope= contains:

https://www.googleapis.com/auth/gmail.send
https://www.googleapis.com/auth/cloud-platform          <- deselected at step 2
openid
https://www.googleapis.com/auth/userinfo.email
https://www.googleapis.com/auth/userinfo.profile

Expected: no cloud-platform.

--scopes is unaffected and produces exactly what is asked for:

$ gws auth login --scopes https://www.googleapis.com/auth/gmail.send
scope=https://www.googleapis.com/auth/gmail.send openid \
      https://www.googleapis.com/auth/userinfo.email \
      https://www.googleapis.com/auth/userinfo.profile

Impact

cloud-platform grants read, write and delete across the user's Google Cloud resources. Someone who opens the picker to narrow scopes, sees 1/17 selected, and consents, grants it anyway. The counter reports the intended selection, so nothing on screen shows the grant is wider than chosen. The authorize URL is the only place the real scope list appears, and it is long enough to wrap in a terminal.

gmail.readonly (restricted, full mailbox read) is also preselected via the Recommended (Core Consumer Scopes) entry.

Also

Toggling Recommended (Core Consumer Scopes) off moves the counter from 9/17 to 8/17 but leaves the eight individual scopes checked, cloud-platform among them. Each has to be deselected separately. If the row is meant to act as a group toggle, that is a second bug; if it is just another checkbox, the name reads like a group.

Suggested fix

Build the authorize URL from picker state, or print the resolved scope list for confirmation before opening the browser. The second is useful on its own: right now checking what you are about to grant means parsing a URL by eye.