Publish to azure samples browser - sample ingestion failure

## Description

Sample ingestion failure: According to `.samples-status.json`, the ingestion failed for `README.md` because the referenced image file `architecture-diagram.png` could not be found:

> Fail to copy media files from path: architecture-diagram.png. Source file does not exist.

https://github.com/MicrosoftDocs/samples/blob/main/Azure-Samples/remote-mcp-functions-javascript/.samples-status.json

## Expected behavior
All media files referenced by `README.md` should exist in the repository at the expected paths so that the sample can be ingested successfully.

CC @lilyjma, @hemarina

先查看 README.md 和 .samples-status.json，以确认对 architecture-diagram.png 的引用以及预期的媒体路径。检查 repository 中是否存在所引用的图像，然后修正缺失的媒体引用或恢复预期文件，以便找到 README 的所有媒体并成功完成 sample ingestion。

由索引模型根据 Issue 内容生成。