[Laurianti]

The Step06 samples download two pages of the Agent Framework documentation from the main branch of MicrosoftDocs/semantic-kernel-docs. On October 23 the pages were removed from main, and both samples stopped at the first download:

System.Net.Http.HttpRequestException: Response status code does not indicate success: 404 (Not Found).

• Pin the documentation pages of Step06 to a commit (38519f5): the two URLs point to commit caf5bacd, the last one where main had the pages. The samples read the same content as before.
• Wait up to 10 minutes for Ollama (3ab7216): the _Ollama samples built OllamaApiClient from a URI, so its HttpClient gave up after the default 100 seconds. On a CPU a qwen2.5:3b answer can take longer: in these runs, up to 2 min 36 s in Step06 and 4 min 1 s in Step07. The sample then stopped with a TaskCanceledException. Step06, Step07 and Step10 built the client the same way. All three now pass it an HttpClient with a 10-minute timeout.

Tested with Chroma 1.5.9 in Docker:

• dotnet test: 10/10.
• Before: both Step06 samples stop with the 404 at the first download.
• After: AgentWithRAG_Step06_ChromaRAG with Microsoft Foundry answers the four questions and cites the pinned pages. The three _Ollama samples run to the end with qwen2.5:3b and nomic-embed-text. With the pinned pages but without the timeout change, Step06 Ollama stopped on the 100-second timeout in 3 runs out of 3.