=== SCENARIO A — the hub's notification log, filtered to created_at >= T0 (11:56:06Z) ===
(the T0 filter is what keeps yesterday's two inert Scenario H probe rows out of every count)

status  channel   message                                       key_or_reason  created_at         
------  --------  --------------------------------------------  -------------  -------------------
sent    operator  Telepített alkalmazás nem fut: OpenGist                      2026-08-23 11:56:57
sent    operator  Telepített alkalmazás nem fut: Calibre-Web A                 2026-08-23 12:00:57

-- counts --
sent      : 2
suppressed: 0
