v0.42.0

Fixed

• A directed-only waiter (synapse wait --directed-only) is no longer woken by a
  priority or CEO message addressed to a different agent. The priority flag and a
  priority sender now elevate only a message that still reaches the waiter — a broadcast,
  or one addressed to it — so a flagged announcement or a CEO directive still wakes a
  quiet waiter promptly, while a priority message directed at one agent no longer wakes
  every directed-only waiter on the bus.
• On a multi-seat project, a <project>/<seat> directed-only waiter is no longer woken by
  every message addressed to the bare <project>. A bare-project message is now treated
  as a routine project-level broadcast for a seat — it still appears in the seat's inbox,
  and a CEO or priority project message still wakes it, but routine project traffic does
  not. A sole agent that wants project-addressed messages to wake it connects with
  --for <project> (the default for the syn-wait wrapper).

Changed

• The README and the documentation site now carry a "Commercial use" section with the
  licence tiers and a direct link to the pricing/checkout page, plus a "Releases" note
  describing the release cadence.