secret

A single secret, statically identified by the `(implements ..)` label a component imports it under, instead of a runtime `key` argument. A component that knows its exact secret names up front (the common case) can import one labeled instance of this interface per secret — e.g. `import db-password: wasmcloud:secrets/secret;`. Because the label is part of the component's own type, a host can check that every labeled secret it imports has a matching entry in the component's resolved bind-time config from the component's import list alone, before instantiating it — instead of only discovering a missing one when a dynamic `store.get` call returns `not-found`. `store` remains the interface for a component whose set of keys is only known at runtime.