R4: push enrichment — events carry a state delta, kill the last poll

Enrich the in-app live stream into a delta channel so the UI renders a move from the event without a follow-up game.state, and make the matchmaking poll a stream-down fallback. - pkg/fbs: trailing fields on opponent_moved (move+game+bag_len), your_turn (move_count), match_found (state), game_over (game), notify (account/invitation/state), MoveResult (rack+bag_len); regenerate Go + TS. - backend: notify owns the FB encoding (encode.go + payload.go input structs); game/lobby/social map their domain types in. emitMove builds the move delta; game.Service.InitialState feeds match_found/game_started the recipient's initial StateView; friends/invitations notify carry their account/invitation. The move-commit response (submit_play/pass/exchange/resign) returns the actor's refilled rack + bag size. - gateway: MoveResult transcode carries rack+bag_len. - ui: pure lib/gamedelta.ts reducer advances the per-game cache keyed on move_count (idempotent + gap-safe); app.svelte seeds the cache on match_found/game_started; Game.svelte applies the delta (commit/pass/exchange/resign drop their load()); NewGame polls only while app.streamAlive is false. - docs: ARCHITECTURE §10, FUNCTIONAL(+ru), backend/gateway/ui READMEs; PRERELEASE R4 marked done + Refinements.
2026-06-10 08:01:50 +02:00
parent e3b08461f0
commit 41a642ef97
47 changed files with 1514 additions and 180 deletions
@@ -53,8 +53,9 @@ win (≈ 40%), targets a small score margin, and times its moves with a move-num
 right-skewed delay (quick openings, long endgames), a night-sleep window anchored to the opponent's timezone, and nudge
 behaviour — all derived deterministically from the game seed, so it keeps no extra
 state. The matchmaker now substitutes a pooled robot (matching the game's language) after a 10-second wait and
-exposes `Poll` so a waiting player can collect the started game (the live
-match-found notification arrives with the `gateway`).
+exposes `Poll` so a waiting player can collect the started game — R4 made it the **stream-down
+fallback**: while the client is streaming, the live match-found push (enriched with the recipient's
+initial game state) drives it instead.

 Stage 6 opens the backend to the edge. The route groups gain their first
 handlers (`internal/server/handlers_*.go`): gateway-only session endpoints under