Google Workspace: unassign user license to free seat

[LuD1161]

Goal: Stop paying for the user’s Workspace seat.
Tasks:

• Research how Workspace billing works (suspend vs delete vs unassign license).

• Identify License Manager API endpoint(s) to unassign licenses.

• Input: primary_email

• Steps: resolve user → unassign license(s) → (optional) suspend/delete user.

• Verify that license count drops via API/report.

• Emit audit JSON (before/after license state, timestamp).
  Acceptance:

• Dry-run mode available.

• Idempotent on re-run.

• Unit test with mocked API responses.