P27E16C expected managed-source delta:

VM103 only:
  M srv/wg-paid/admin-web/index.html

Functional delta:
  - DELETE status=deleting starts bounded GET /v2/admin/users polling
  - polling interval 2500 ms
  - polling timeout 60000 ms
  - row re-renders automatically and disappears after backend finalizes deletion
  - initial DELETE blocked_legacy_dependencies response stops without polling
  - polling stops on completion, state change, error, timeout, auth/session loss, navigation/pagehide
  - manual Refresh remains available
  - no second DELETE is issued by polling

Not changed:
  - VM121 backend/API/schema
  - staged deletion lifecycle
  - auth/session/CSRF helper
  - invites/plans/profile-limit behavior
  - VM100/VM101 runtime

Known API boundary:
  GET /v2/admin/users does not expose a distinct late blocked_legacy_dependencies field.
  Therefore an initial blocked DELETE response is handled exactly, while a later legacy block
  is bounded by the polling timeout and remains inspectable with manual Refresh.