Transaction lifecycle seam for adopter-side event composition.
Phase 11 introduces the contract only. The unsubscribe controller's
Ecto.Multi integration lands in 11-03 per D-02, where this callback
will be invoked inside the durable unsubscribe transaction.
Summary
Functions
Default no-op implementation for lifecycle hooks.
Callbacks
@callback handle_event(Ecto.Multi.t(), map()) :: Ecto.Multi.t()
Functions
@spec handle_event(Ecto.Multi.t(), map()) :: Ecto.Multi.t()
Default no-op implementation for lifecycle hooks.
Returns the in-flight multi unchanged so adopters can opt out without branching in the caller.