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#MessageStore interface

A pure append-only buffer of raw protocol messages produced by the developer's IO module. The store knows nothing about the v0.9 protocol — it does not parse, process, or interpret messages. It only:

1. Stores them in arrival order. 2. Notifies subscribers when new ones land. 3. Hands the current snapshot back via getSnapshot() (referentially stable between mutations — required by useSyncExternalStore).

Protocol-aware processing — surfaces, signals, resources, action dispatch — is the responsibility of <A2UI> (the renderer component). Developers who don't want to learn the protocol should use <A2UI>; developers who do can run their own MessageProcessor against the snapshot directly.

Signature:

export interface MessageStore 

#Properties

#Methods