Class EmoteGrammarRunner

Bind a speaker's positional tokens against the emote's slot declarations. Iterates slots in YAML order, trying to consume one token per slot. Skip-on-mismatch for optional stuff slots that fail to resolve. Required slots that don't bind raise.

For stuff slots, target resolution uses MqlApi.resolveOne at the slot's scope (default 'online'). For free slots whose declaration is the last one, the rest of the tokens are consumed greedily.

Heuristic: the conventional shape is verb [stuff-slot] [free-slot] — i.e. one target then a manner clause. The binder honors that with skip-on-mismatch on optional stuff slots so wave happily (no target, manner is "happily") works against the same grammar as wave iffy (target, no manner).

Render the emote for one audience. Pre-binds audience-specific actor / target / s / es / ies variables (and verbForm when the grammar carries one), then runs the template through ProseApi.format. The Mml-aware output escape ensures Mml fragments emit verbatim while raw strings (slot fills) get the five-entity escape.