chore: 清理临时文件并更新工作区配置

- 删除不再需要的Excalidraw绘图文件
- 更新Obsidian插件中的最近文件记录顺序
- 调整工作区布局和活动标签页
- 新增VS Code配置文件，统一开发环境设置

.obsidian/plugins/recent-files-obsidian/data.json

@@ -1,5 +1,13 @@
 {
   "recentFiles": [
+    {
+      "basename": "DeepSeek-V4全面解析",
+      "path": "博客/DeepSeek-V4全面解析.md"
+    },
+    {
+      "basename": "标签分类审查报告",
+      "path": "博客/标签分类审查报告.md"
+    },
     {
       "basename": "Git团队协作指南（精简版）",
       "path": "博客/Git团队协作指南（精简版）.md"
@@ -8,10 +16,6 @@
       "basename": "文章列表",
       "path": "博客/文章列表.md"
     },
-    {
-      "basename": "标签分类审查报告",
-      "path": "博客/标签分类审查报告.md"
-    },
     {
       "basename": "Drawing 2026-04-26 18.22.24.excalidraw",
       "path": "Excalidraw/Drawing 2026-04-26 18.22.24.excalidraw.md"
@@ -88,10 +92,6 @@
       "basename": "Drawing 2026-04-25 21.16.49.excalidraw",
       "path": "Excalidraw/Drawing 2026-04-25 21.16.49.excalidraw.md"
     },
-    {
-      "basename": "DeepSeek-V4全面解析",
-      "path": "博客/DeepSeek-V4全面解析.md"
-    },
     {
       "basename": "深入解析 Claude Code：Vibe Coding 时代的 AI 编程利器",
       "path": "博客/深入解析 Claude Code：Vibe Coding 时代的 AI 编程利器.md"