修复自查发现的门禁与体验问题：格式、超时态语义、压缩 CPU 边界

- 新增 Rust 测试补齐 cargo fmt；ESLint 按仓库约定收口：常量与解析函数拆到 platformGameLoadingSurfaceModel.ts，删除 GAME_PLAY_STARTUP_TIMEOUT_MS 常量别名（测试直接用共享常量）
- 共享加载面新增 stalled：宿主判定等待不再推进时停掉进度动画并把 aria-busy 置回 false（去掉与 role=status 重复的 aria-live）
- 后台试玩超时时传入 stalled，避免「一边转圈一边说超时」
- Accept-Encoding 权重参数名改为大小写不敏感（RFC 9110 §12.5.3），GZIP;Q=0 视为拒绝并补用例
- 发行资源压缩分级：≥2 MiB 改用 level 1（zlib 端实测约 1/3 耗时、压缩比差约 3%），小文件仍用 level 6
- 文档：主规范补压缩与条件请求契约（并写明 60 秒窗口与撤销窗口不放宽）、nginx README 修正 Pingora 压缩关闭时的口径、pitfalls 补 CPU 边界与措辞修正

src/components/game-distribution/GameDistributionPages.test.tsx

@@ -1,5 +1,6 @@
 /* @vitest-environment jsdom */
 
+import { PLATFORM_GAME_LOADING_TIMEOUT_MS } from '@genarrative/shared/components';
 import {
   act,
   cleanup,
@@ -19,7 +20,7 @@ import type {
 } from '../../services/gameDistributionClient';
 import { GameDetailPage } from './GameDetailPage';
 import { GameGalleryPage } from './GameGalleryPage';
-import { GAME_PLAY_STARTUP_TIMEOUT_MS, GamePlayPage } from './GamePlayPage';
+import { GamePlayPage } from './GamePlayPage';
 import { resolveNonPublicCoverLabel } from './gameVersionHistoryModel';
 
 const listGamesMock = vi.hoisted(() => vi.fn());
@@ -712,7 +713,7 @@ describe('GamePlayPage 启动超时与旋转提示', () => {
       const firstFrame = screen.getByTitle('星轨防线 在线游玩');
 
       act(() => {
-        vi.advanceTimersByTime(GAME_PLAY_STARTUP_TIMEOUT_MS);
+        vi.advanceTimersByTime(PLATFORM_GAME_LOADING_TIMEOUT_MS);
       });
       expect(screen.getByText(/启动超时/u)).toBeTruthy();
       expect(screen.getByRole('button', { name: /^返回$/u })).toBeTruthy();
@@ -728,7 +729,7 @@ describe('GamePlayPage 启动超时与旋转提示', () => {
       );
 
       act(() => {
-        vi.advanceTimersByTime(GAME_PLAY_STARTUP_TIMEOUT_MS);
+        vi.advanceTimersByTime(PLATFORM_GAME_LOADING_TIMEOUT_MS);
       });
       expect(screen.queryByText(/启动超时/u)).toBeNull();
 

src/components/game-distribution/GamePlayPage.tsx

@@ -30,12 +30,6 @@ import { GameCover } from './GameGalleryPage';
 
 type GamePlayPageProps = { gameId: string | null; onBack: () => void };
 
-/**
- * 发行包首屏加载上限：超过后给出显式超时与重试，不用无限期等待。
- * 与后台审核试玩共用同一口径（`PLATFORM_GAME_LOADING_TIMEOUT_MS`）。
- */
-export const GAME_PLAY_STARTUP_TIMEOUT_MS = PLATFORM_GAME_LOADING_TIMEOUT_MS;
-
 type GameStartupState = 'idle' | 'loading' | 'ready' | 'timeout';
 
 export function GamePlayPage({ gameId, onBack }: GamePlayPageProps) {
@@ -100,7 +94,7 @@ export function GamePlayPage({ gameId, onBack }: GamePlayPageProps) {
       setStartupState((current) =>
         current === 'loading' ? 'timeout' : current,
       );
-    }, GAME_PLAY_STARTUP_TIMEOUT_MS);
+    }, PLATFORM_GAME_LOADING_TIMEOUT_MS);
     return () => window.clearTimeout(timeoutId);
   }, [hasStarted, startupState]);