1079878654
These pre-R4 summary scalars on OpponentMovedEvent were redundant with the move/game delta and read by nobody — the UI codec and mock take only move/game/bag_len, and the gateway forwards the push payload verbatim. Removed from scrabble.fbs, the notify emit (notify/events.go) and the round-trip test; regenerated the FB Go + TS bindings. No prod data, so the wire-slot renumber is free and there is no DB change.