chore: 纳入项目全部源码进根仓库统一管理

删除 YouleNexus 内嵌 .git，统一由根仓库唯一管理。提交：
- projects/ 旧 H5 模板 Game_Surface_3 与各子游戏源码
- cocoscreator_projects/YouleNexus 工程 + cocos-creator-mcp 扩展源码
- CLAUDE.md、.mcp.json 等配置
library/temp/node_modules/dist 等缓存由 .gitignore 排除。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

cocoscreator_projects/YouleNexus/extensions/cocos-creator-mcp/tsconfig.json

@@ -0,0 +1,21 @@
+{
+    "compilerOptions": {
+        "target": "ES2017",
+        "module": "CommonJS",
+        "moduleResolution": "node",
+        "inlineSourceMap": true,
+        "inlineSources": true,
+        "esModuleInterop": true,
+        "skipLibCheck": true,
+        "strict": true,
+        "forceConsistentCasingInFileNames": true,
+        "resolveJsonModule": true,
+        "outDir": "./dist",
+        "rootDir": "./source",
+        "types": [
+            "node",
+            "@cocos/creator-types/editor"
+        ]
+    },
+    "exclude": ["client", "test", "dist"]
+}