M5-M7: сцены, лобби, экран игры и цикл матча

Обе сцены собраны через Code Mode, не руками.

- loader: поднимает модули, прогревает арт карт, уходит в lobby
- lobby: обе UI-ветки в одной сцене (по ARCHITECTURE.md), матч — это
  смена видимого корня, а не загрузка сцены
- GameScreen рисует текущее состояние и доводит узлы твинами, а не
  проигрывает поток событий: узел карты живёт вместе со своей картой,
  поэтому "шестёрка ушла из руки на стол" не требует отдельного случая
- один тап = ход целиком; логика вынесена в core/rules/intent.ts
  и покрыта тестами, в том числе проверкой, что она никогда не предложит
  ход, который правила отвергнут
- арт карт переехал в assets/resources: .pac — это инструкция упаковки
  на сборке, а не рантайм-ассет, и без ссылок на кадры в сборку
  не попадало ничего. Теперь все 37 спрайтов в одной текстуре 2048x2048
- клики кнопок подписываются в коде, а не через clickEvents сцены
- строки интерфейса собраны в одном файле

Сборка web-mobile проходит чисто, все ссылки в сцене проверены.
Вживую не запускалось: браузер в этом окружении не поднимает
главный цикл движка. Подробности — в docs/TECHNICAL.md.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/PLAN.md

@@ -63,32 +63,50 @@ progress. The Cocos layer only renders state and turns taps into actions.
 - [x] Import into `assets/art/`, configure sprite frames and atlasing
 - [x] Remove consumed source art from `local/`, record attribution/licence
 
-### M5 — Scenes and bootstrap `[ ]`
-- [ ] `loader` scene: module initialisation, then transition to `lobby`
-- [ ] `lobby` scene: New Game button, statistics readout
-- [ ] Canvas / resolution policy and a reusable safe-area-aware layout root
+### M5 — Scenes and bootstrap `[x]`
+- [x] `loader` scene: module initialisation, then transition to `lobby`
+- [x] `lobby` scene: New Game button, statistics readout
+- [x] Canvas / resolution policy and a reusable safe-area-aware layout root
 
-### M6 — Game screen `[ ]`
-- [ ] `Card` prefab, face/back flipping, sizing
-- [ ] Hand layout (fan), table layout (attack/defence pairs), deck and trump display
-- [ ] Deal, attack, defend, take and discard animations driven by core events
-- [ ] Tap/drag input producing core actions; illegal moves visibly rejected
-- [ ] Bot acts with human-readable pacing
+### M6 — Game screen `[x]`
+- [x] `Card` prefab, face/back flipping, sizing
+- [x] Hand layout (fan), table layout (attack/defence pairs), deck and trump display
+- [x] Deal, attack, defend, take and discard animations driven by core events
+- [x] Tap/drag input producing core actions; illegal moves visibly rejected
+- [x] Bot acts with human-readable pacing
 
-### M7 — Match flow `[ ]`
-- [ ] Result overlay (win / lose), stats written through the savegame module
-- [ ] Return to lobby; start another match without a scene leak
-- [ ] Optional: surrender / leave match
+### M7 — Match flow `[x]`
+- [x] Result overlay (win / lose), stats written through the savegame module
+- [x] Return to lobby; start another match without a scene leak
+- [x] Leave-match button, which ends the match as a loss
 
-### M8 — Responsive and touch pass `[ ]`
-- [ ] Verify layout from 4:3 to 21:9, portrait
-- [ ] All interactive elements meet a minimum tap size
-- [ ] Editor preview screenshots at the extreme aspect ratios
+### M8 — Responsive and touch pass `[~]`
+- [x] Fit-width canvas, safe-area root, widget-stretched background
+- [x] Every interactive element authored at or above the 120-unit minimum
+      (buttons 330×140 and 560×150; hand cards expose ~128 units each)
+- [x] Vertical positions kept inside the 4:3 crop
+- [ ] **Blocked:** seen at the extreme aspect ratios. Needs a machine that can
+      actually run the build — see "What is and is not verified" in
+      [TECHNICAL.md](TECHNICAL.md)
 
-### M9 — Build verification and hand-off `[ ]`
-- [ ] Web-mobile build runs end to end
-- [ ] Android/iOS build settings documented (ASTC per ART.md)
-- [ ] README / TECHNICAL.md final pass
+### M9 — Build verification and hand-off `[~]`
+- [x] `web-mobile` build completes clean; command recorded in TECHNICAL.md
+- [x] Card art reaches the build and packs into a single 2048² atlas
+- [x] Every component reference in the scene verified populated
+- [ ] **Blocked:** the build seen running. The browser in this environment falls
+      back to a software renderer that cannot start the engine's main loop
+- [ ] Android/iOS build settings (ASTC per ART.md)
+- [ ] README
+
+### Known follow-ups
+
+- The default skybox cubemap (~1.1 MB) still reaches the build. `skybox.enabled`
+  is off in both scenes, but the scene keeps its `_envmapHDR` reference and the
+  builder follows it. The editor tool server cannot write a null reference;
+  clearing the field in the Inspector by hand would do it.
+- Nothing verifies the presentation layer automatically. The obvious next step is
+  a smoke test that boots the scene headlessly and asserts the card nodes land
+  where the layout says they should.
 
 ## Deliberately out of scope for iteration 1