Create SDK documentation updating workflow

[laiapat]

Based on the .NET agentic workflow, implement an agentic workflow for this repository that evaluates and attempts to fix documentation gaps in SDK libraries. This should leverage code snippets from samples and focus on libraries that have recent push activity. Much of this can be pulled directly from the .NET specification.

[laiapat]

Done in a fork of the Python repo; pending merge to main repo: laiapat#8