Add workspace-admin remove-from-workspace row action to the Teams page

[warp-agent-staging]

Companion PR: warp-server web admin half — https://github.com/warpdotdev/warp-server-for-benchmarks/pull/760

Description

Adds a Remove from workspace row action for workspace administrators on the Teams page (TeamsPageView::team_to_item_list). On a native workspace, the action removes the member from the workspace and all of its teams via the server's existing removeUserFromWorkspace mutation, called with entrypoint: TeamSettings to match remove-from-team. No new backend operation.

The action appears on a member row only when all of these hold (identical gating matrix on both surfaces of the paired feature):

• the workspace is a native workspace,
• the viewer is a workspace administrator or workspace owner,
• the row is not the viewer's own row,
• the target member is not the workspace owner.

Consequences pinned by tests: a team-only administrator (team admin with no workspace-admin role) never sees it — the gating reads workspace.is_workspace_admin directly rather than the has_admin_permissions helper, which is true for team admins too; on a non-native workspace the action is absent entirely, so no duplicate remove actions appear; and the existing team-owner protection on Remove from team is unchanged.

Confirmation copy (member email and workspace name interpolated):

• Remove from workspace — title Remove from workspace?, confirm button Remove from workspace: "Are you sure you want to remove {email} from the workspace? This will remove {email} from all teams in {workspaceName} and from the workspace itself."
• Remove from team on a native workspace — title Remove from team?, confirm button Remove from team: "Are you sure you want to remove {email} from this team? {email} will still keep their {workspaceName} workspace membership and their other team memberships." No reload-credit copy.
• Remove from team on a legacy (non-native) workspace — unchanged, including the existing reload-credits warning.

New dialog variants (RemoveUserFromWorkspace, RemoveUserFromNativeWorkspaceTeam) follow the LeaveNativeWorkspaceTeam precedent in CloudActionConfirmationDialog. WorkspaceMembersSettings is untouched.

Linked Issue

No linked issue; this is a factory task paired with the same feature on the web admin Teams page in warp-server.

Based on the pinned checkout, so the base branch is base/pinned-checkout (the mirror's master predates the pin and would show ~93 files of unrelated history).

Testing

• I have manually tested my changes locally with ./script/run — not applicable: this task explicitly declined computer interaction; verification is by automated tests and builds below.

New focused tests:

• teams_page_tests.rs: gating matrix via the existing team_to_item_list table — workspace admin gets the action, team-only admin does not, workspace owner's row is protected, non-native workspace shows no workspace action (existing tests updated for the new action in native cases), plus the viewer's-own-row rule already covered.
• cloud_action_confirmation_dialog_tests.rs: exact title/body/button for both new variants.
• user_workspaces_tests.rs: remove_user_from_workspace forwards user_uid, workspace_uid, and CloudObjectEventEntrypoint::TeamSettings to the workspace client (mockall withf) and emits RemoveUserFromWorkspaceSuccess.

Commands run and results:

• cargo check -p warp_graphql — pass (also validates the new cynic mutation against the updated schema snapshot)
• cargo check -p warp --tests — pass
• cargo nextest run -p warp -E 'test(teams_page) or test(cloud_action_confirmation_dialog) or test(remove_user_from_workspace)' — 36 run, 36 passed
• ./script/format — run
• cargo clippy -p warp_graphql -p warp --tests -- -D warnings — pass

Screenshots / Videos

None; computer interaction was declined for this task.

Agent Mode

• Warp Agent Mode - This PR was created via Warp's AI Agent Mode

[warp-agent-staging]

 

This PR was generated with [Warp](https://warp.dev/factories).

Comment @warp-staging-factory on this PR to send it follow-up work.