Switch to VectorEngine gpt-image-2 and edits

Replace uses of the legacy `gpt-image-2-all` model with `gpt-image-2` and standardize image workflows: no-reference generation uses POST /v1/images/generations, any-reference flows use POST /v1/images/edits with multipart `image` parts. Update SKILLs, generation scripts, decision logs, and docs to reflect the contract change and edits-vs-generations guidance. Apply corresponding changes across backend (api-server match3d/puzzle modules, openai image adapter, mappers, telemetry, spacetime client/module), frontend components and services (Match3D, Puzzle, CreativeImageInputPanel, runtime shells), and add new spritesheet/parser files and tests. Also add media/logo.png. These changes align repository code and documentation with the VectorEngine image API contract and update generation/upload handling (green-screen -> alpha processing, spritesheet handling, and related tests).

src/services/match3dGeneratedModelCache.test.ts

@@ -270,7 +270,7 @@ describe('match3dGeneratedModelCache', () => {
     );
   });
 
-  test('运行态预加载同时解析背景和容器 UI 资产', async () => {
+  test('运行态预加载同时解析背景和spritesheet资产', async () => {
     setStoredAccessToken('test-access-token', { emit: false });
     vi.spyOn(globalThis, 'fetch').mockResolvedValue(
       new Response(
@@ -309,6 +309,14 @@ describe('match3dGeneratedModelCache', () => {
           imageSrc: null,
           imageObjectKey:
             'generated-match3d-assets/session/profile/background/task/background.png',
+          uiSpritesheetPrompt: '果园 UI',
+          uiSpritesheetImageSrc: null,
+          uiSpritesheetImageObjectKey:
+            'generated-match3d-assets/session/profile/ui-spritesheet/task/ui.png',
+          itemSpritesheetPrompt: '果园物品',
+          itemSpritesheetImageSrc: null,
+          itemSpritesheetImageObjectKey:
+            'generated-match3d-assets/session/profile/item-spritesheet/task/items.png',
           containerPrompt: '果园浅盘',
           containerImageSrc: null,
           containerImageObjectKey:
@@ -321,13 +329,15 @@ describe('match3dGeneratedModelCache', () => {
 
     expect(getMatch3DGeneratedRuntimeUiAssetSources(assets)).toEqual([
       'generated-match3d-assets/session/profile/background/task/background.png',
+      'generated-match3d-assets/session/profile/ui-spritesheet/task/ui.png',
+      'generated-match3d-assets/session/profile/item-spritesheet/task/items.png',
       'generated-match3d-assets/session/profile/ui-container/task/container.png',
     ]);
     await preloadMatch3DGeneratedRuntimeAssets(assets, null, {
       expireSeconds: 300,
     });
 
-    expect(globalThis.fetch).toHaveBeenCalledTimes(3);
+    expect(globalThis.fetch).toHaveBeenCalledTimes(5);
     expect(
       vi
         .mocked(globalThis.fetch)
@@ -336,6 +346,8 @@ describe('match3dGeneratedModelCache', () => {
       expect.arrayContaining([
         expect.stringContaining('/items/item-1/views/view-01.png'),
         expect.stringContaining('/background/task/background.png'),
+        expect.stringContaining('/ui-spritesheet/task/ui.png'),
+        expect.stringContaining('/item-spritesheet/task/items.png'),
         expect.stringContaining('/ui-container/task/container.png'),
       ]),
     );