@spec recent_audit_preview(map(), Sigra.Admin.Scope.t(), binary()) :: [map()]

Returns up to @audit_preview_limit most-recent audit events for user_id, already shaped by Sigra.Admin.Audit.Presenter.present/2.

Each returned row is a map with the guaranteed keys:

• :id — audit event id (binary)
• :inserted_at — DateTime.t()
• :action — raw action string (e.g. "admin.impersonation.start")
• :action_label — human-readable label (e.g. "Impersonation started")
• :action_badge — "Impersonation" when the row represents impersonation activity, otherwise nil
• :actor_label, :effective_user_label — individual user labels for the full explorer
• :actor_summary — combined label preferred by compact previews
• :outcome — event.outcome || "success"

Preview renderers MUST NOT introduce fields outside this set (see D-07 in the Phase 33 context). If a new preview field is needed, add it to Sigra.Admin.Audit.Presenter first so the preview and the full explorer stay coherent.