Type Alias WhiteboardWidgetInteractionDropReason

WhiteboardWidgetInteractionDropReason:
    | "not-interaction"
    | "unknown-source"
    | "oversize"
    | "bad-shape"

Why an incoming 'message' event was NOT surfaced as an ambient interaction batch.

"not-interaction"
Not an interaction message at all (no marker) — other postMessage traffic, ignore silently.
"unknown-source"
Marker present but event.source is not a tracked widget iframe — spoof/stale, drop.
"oversize"
Serialized batch beyond WHITEBOARD_WIDGET_INTERACTION_MAX_CHARS — warn + drop.
"bad-shape"
events missing / empty / not the documented record shape — warn + drop.