恢复游戏分发完整实现（特性分支）

- 主站：游戏广场、详情、在线游玩、网页发布与作者中心，以及共享契约与客户端服务
- 后端：module-game-distribution 领域层、SpacetimeDB 表/迁移/绑定、spacetime-client facade、api-server 路由与发行网关
- 后台：游戏审核页（待审列表、通过/拒绝、安全下架）
- AGC：发布面板、本地导出包读取命令与发布服务，含默认跳过的真实链路测试
- 运维：发行来源 nginx 模板与门禁、game-distribution:publish 灰度发布开关、OSS PutObject 受控重试
- 文档：主规范、里程碑与实施计划、决策日志与踩坑记录

src/components/platform-entry/PlatformEntryActiveFlowShell.test.tsx

@@ -43,6 +43,21 @@ const profileCenterMock = vi.hoisted(() => ({
   rechargeCenter: null as { walletBalance: number } | null,
 }));
 
+const gameDistributionMock = vi.hoisted(() => ({
+  cancelGameVersion: vi.fn(),
+  createGame: vi.fn(),
+  createGameVersion: vi.fn(),
+  getGame: vi.fn(),
+  getGameVersion: vi.fn(),
+  listGames: vi.fn(),
+  listMyGames: vi.fn(),
+  submitGameVersion: vi.fn(),
+  unpublishGame: vi.fn(),
+  uploadGamePackage: vi.fn(),
+}));
+
+vi.mock('../../services/gameDistributionClient', () => gameDistributionMock);
+
 vi.mock('../auth/AuthUiContext', () => ({
   useAuthUi: () => authUiMock.value,
 }));
@@ -187,6 +202,10 @@ describe('PlatformEntryActiveFlowShell', () => {
     profileCenterMock.rechargeCenter = null;
     authUiMock.value.user = null;
     authUiMock.value.canAccessProtectedData = false;
+    window.history.replaceState(null, '', '/creation');
+    for (const mock of Object.values(gameDistributionMock)) {
+      mock.mockReset();
+    }
     authUiMock.value.openLoginModal.mockReset();
     responsiveMock.isDesktopLayout = true;
   });
@@ -417,7 +436,7 @@ describe('PlatformEntryActiveFlowShell', () => {
       within(navigation)
         .getAllByRole('button')
         .map((button) => button.getAttribute('aria-label')),
-    ).toEqual(['创作', '项目', '我的']);
+    ).toEqual(['创作', '项目', '游戏', '我的']);
     expect(
       within(navigation)
         .getByRole('button', { name: '创作' })
@@ -466,7 +485,7 @@ describe('PlatformEntryActiveFlowShell', () => {
     ).toBe('page');
   });
 
-  it('keeps only profile reachable from the mobile dock', async () => {
+  it('keeps only games and profile reachable from the mobile dock', async () => {
     responsiveMock.isDesktopLayout = false;
     const setSelectionStage = vi.fn();
     render(
@@ -483,7 +502,7 @@ describe('PlatformEntryActiveFlowShell', () => {
       within(navigation)
         .getAllByRole('button')
         .map((button) => button.getAttribute('aria-label')),
-    ).toEqual(['我的']);
+    ).toEqual(['游戏', '我的']);
     expect(await screen.findByRole('main', { name: '我的' })).toBeTruthy();
     expect(screen.getByRole('button', { name: '下载客户端' })).toBeTruthy();
     expect(
@@ -568,7 +587,7 @@ describe('PlatformEntryActiveFlowShell', () => {
         within(navigation)
           .getAllByRole('button')
           .map((button) => button.getAttribute('aria-label')),
-      ).toEqual(['我的']);
+      ).toEqual(['游戏', '我的']);
       expect(
         within(navigation)
           .getByRole('button', { name: '我的' })
@@ -653,6 +672,146 @@ describe('PlatformEntryActiveFlowShell', () => {
     });
   });
 
+  it('在我的游戏里进入发布新版本时沿用同一个 gameId', async () => {
+    authUiMock.value.user = {
+      id: 'user-1',
+      publicUserCode: '100001',
+      displayName: '测试用户',
+      avatarUrl: null,
+      phoneNumberMasked: null,
+      loginMethod: 'password',
+      bindingStatus: 'active',
+      wechatBound: false,
+    };
+    authUiMock.value.canAccessProtectedData = true;
+    gameDistributionMock.listMyGames.mockResolvedValue([
+      {
+        id: 'game-1',
+        title: '星轨防线',
+        summary: '守住轨道城',
+        description: '旧版资料',
+        category: '动作',
+        tags: ['塔防'],
+        coverColor: '#d77a51',
+        icon: '✦',
+        author: { id: 'user-1', name: '测试用户' },
+        deviceSupport: { desktop: true, mobile: false, touch: false },
+        status: 'published',
+        publicationRevision: 3,
+        currentVersion: null,
+        playCount: 1,
+        createdAt: '2026-09-20T08:00:00Z',
+        latestVersion: {
+          versionId: 'gamever-2',
+          gameId: 'game-1',
+          versionNumber: 2,
+          packageSha256: 'e'.repeat(64),
+          packageBytes: 1024,
+          status: 'published',
+          publicationRevision: 3,
+          reviewReason: null,
+          createdAt: '2026-09-20T08:00:00Z',
+          updatedAt: '2026-09-20T09:00:00Z',
+        },
+        versions: [],
+      },
+    ]);
+    const setSelectionStage = vi.fn();
+
+    render(
+      <PlatformEntryFlowShellImpl
+        selectionStage="game-mine"
+        setSelectionStage={setSelectionStage}
+      />,
+    );
+
+    fireEvent.click(await screen.findByRole('button', { name: '发布新版本' }));
+
+    expect(setSelectionStage).toHaveBeenCalledWith('game-publish', {
+      path: '/games/publish?game=game-1',
+    });
+  });
+
+  it('发布页带 game 参数时进入更新模式并预填既有资料', async () => {
+    authUiMock.value.user = {
+      id: 'user-1',
+      publicUserCode: '100001',
+      displayName: '测试用户',
+      avatarUrl: null,
+      phoneNumberMasked: null,
+      loginMethod: 'password',
+      bindingStatus: 'active',
+      wechatBound: false,
+    };
+    authUiMock.value.canAccessProtectedData = true;
+    gameDistributionMock.listMyGames.mockResolvedValue([
+      {
+        id: 'game-9',
+        title: '星轨防线',
+        summary: '守住轨道城',
+        description: '旧版资料',
+        category: '动作',
+        tags: ['塔防'],
+        coverColor: '#d77a51',
+        icon: '✦',
+        author: { id: 'user-1', name: '测试用户' },
+        deviceSupport: { desktop: true, mobile: false, touch: false },
+        status: 'published',
+        publicationRevision: 5,
+        currentVersion: null,
+        playCount: 1,
+        createdAt: '2026-09-20T08:00:00Z',
+        latestVersion: {
+          versionId: 'gamever-9',
+          gameId: 'game-9',
+          versionNumber: 4,
+          packageSha256: 'f'.repeat(64),
+          packageBytes: 2048,
+          status: 'published',
+          publicationRevision: 5,
+          reviewReason: null,
+          createdAt: '2026-09-20T08:00:00Z',
+          updatedAt: '2026-09-20T09:00:00Z',
+        },
+        versions: [],
+      },
+    ]);
+    gameDistributionMock.getGameVersion.mockResolvedValue({
+      game: {
+        id: 'game-9',
+        title: '星轨防线',
+        summary: '守住轨道城',
+        description: '旧版资料',
+        category: '动作',
+        tags: ['塔防'],
+        publicationRevision: 5,
+      },
+      version: {
+        versionId: 'gamever-9',
+        versionNumber: 4,
+        status: 'published',
+        publicationRevision: 5,
+        recoveryAction: 'none',
+      },
+    });
+    window.history.replaceState(null, '', '/games/publish?game=game-9');
+
+    render(
+      <PlatformEntryFlowShellImpl
+        selectionStage="game-publish"
+        setSelectionStage={vi.fn()}
+      />,
+    );
+
+    expect(
+      await screen.findByText(/正在为《星轨防线》发布新版本 v5/u),
+    ).toBeTruthy();
+    expect(screen.getByLabelText('游戏名称')).toHaveProperty(
+      'value',
+      '星轨防线',
+    );
+  });
+
   it('keeps guide and tool intent in editor navigation URLs', async () => {
     const setSelectionStage = vi.fn();
     const { rerender } = render(