Surface the per-game "single word" rule to the client and refine the
random-opponent New Game screen.
- Wire: thread multiple_words_per_turn into the GameView and Invitation
FlatBuffers tables (Go + TS regenerated), through pkg/wire builders and both
the backend push-event and gateway REST paths.
- In-game indicators (single-word games only): a small 1 in the status bar's
score-preview slot (yields to the live preview) and a centred "One word per
turn" label in the history-drawer header. Standard games show neither.
- Invitation card gains a "One word per turn" line for single-word invitations.
- Auto-match redesign: variant plaques are mutually-exclusive selects (highlight
on tap, no longer enqueue); a lone offered variant is pre-selected; a bottom
"Start game" button (disabled until a variant is chosen) confirms. The rule
toggle appears once a Russian variant is selected.
- Tests: e2e for the new auto flow and the in-game indicator (mock g3 is a
single-word game); mock/data + fixtures carry the new field. Docs: UI_DESIGN.
Extract the FlatBuffers builders for the wire tables shared by the backend push
encoder and the gateway edge transcoder — GameView, MoveRecord, StateView,
AccountRef, Invitation and their nested rows — into a new scrabble/pkg/wire
package. Both callers keep their local builder signatures (no call sites move)
but now map their own source types (the backend's notify.* payloads and the
decoded engine.MoveRecord; the gateway's backendclient.* REST DTOs) to neutral
wire.* structs and delegate the construction to package wire, the single
definition of the nested-table layout.
Behaviour-preserving: the verified-identical field sets mean the wire bytes
decode the same, and the notify + transcode round-trip tests pass unchanged. The
fiddly Start/Add/End + reverse-prepend vector boilerplate now lives once; the two
encode files shrink while pkg/wire carries the shared logic.
Ilia Denisov