chore: 添加开发容器配置文件到 gitignore

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Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

.gitignore

@@ -63,3 +63,4 @@ mini/tests/__snapshots__/*
 .claude/settings.local.json
 
 .playwright-mcp
+.dev-container-config.json