The monolithic if/else-if dispatcher becomes nine modules by event
family. The routing preamble runs once, then each handler consumes its
own types and reports whether it did, so dispatch stops at the first
taker. Families are mutually exclusive by type, so ordering between them
is inert; ordering within a family is unchanged.
Restores two things the extraction dropped against a moving base: the
layout.apply handler, and the multi-question clarify.request path. A
batch clarify was consumed and never parked, so the agent blocked on
clarify.respond with no card rendered — the existing tests passed
because they assert "exactly one clarify card", which is also true when
the request is dropped and only the tool.start row exists.
Brooklyn Nicholson
0553a06728