chore(devcontainer): update image tag to main in devcontainer configuration

.devcontainer/devcontainer.json

@@ -1,5 +1,5 @@
 {
-  "image": "ghcr.io/yanhao98/h-devcontainer:oncreatecommand.d",
+  "image": "ghcr.io/yanhao98/h-devcontainer:main",
   "runArgs": ["--name=${localWorkspaceFolderBasename}-devcontainer"],
   "forwardPorts": [4730, 4731], // vscode://settings/remote.localPortHost -> 默认只监听 localhost
   "portsAttributes": {
@@ -131,7 +131,7 @@
     8. VS Code 附加到容器
     9. postAttachCommand (容器内，每次附加)
   */
-  "initializeCommand": "echo '↘️ 准备创建容器...'; docker pull ghcr.io/yanhao98/h-devcontainer:oncreatecommand.d;",
+  "initializeCommand": "echo '↘️ 准备创建容器...'; docker pull ghcr.io/yanhao98/h-devcontainer:main;",
   "onCreateCommand": "echo '↘️ 容器首次创建！'; /usr/local/bin/onCreateCommand.sh",
   "updateContentCommand": "echo '↘️ 容器内容已更新！';  zsh -c 'time pnpm install;'",
   "postCreateCommand": "echo '↘️ 容器已创建！';",