Render an interactive Angular Material UI inline in the chat. Pass spec: one complete json-render spec object (not JSON Patch lines). The input schema lists every component, its props and allowed values, and every action; use only those.

• root is the key of the top element. elements is a flat map of key → { type, props, children: [child keys] }; every child key must exist in elements.

• state holds the data. Read it with {"$state":"/path"} rather than repeating values in props. Data-backed UI always needs state; use realistic sample data.

• A prop can be dynamic: {"$state":"/p"} reads, {"$bindState":"/p"} binds a form field both ways, {"$template":"Hi ${/name}"} interpolates, {"$cond":{"$state":"/p"},"$then":a,"$else":b} picks.

• Lists: on a container, "repeat":{"statePath":"/items","key":"id"}; its children render once per item and read {"$item":"field"}.

• visible and on sit next to props, never inside: "visible":{"$state":"/tab","eq":"home"}, "on":{"press":{"action":"setState","params":{"statePath":"/tab","value":"home"}}}.

• Forms: give inputs props.validation {"checks":[{"type":"required","message":"..."}]} and submit with submitForm, which runs its inner action only when every field is valid.

• To continue the conversation from a button, use sendMessage: {"action":"sendMessage","params":{"text":"Approve release 2.4.0","data":{"$state":"/release"}}}. The host puts text (and data as JSON) in the chat as the user's message, so write it in their voice. For a form: {"action":"submitForm","params":{"action":"sendMessage","params":{"text":"Sign me up","data":{"$state":"/form"}}}}.