A schema may require a property it never declares: `{ type: "object",
required: ["token"] }` is legal and the tool plainly takes an argument.
declaresAnyFields counted only `properties`, so an App tool shaped that way —
including nested under a composition — was reported input-free and
auto-invoked with `{}`.
Signed-off-by: cliffhall <cliff@futurescale.com>
8f935adaad