.Net: Visualizing dotnet workflows (#882)

* Adding more test for workflow vizualization.

* Improving README for sample.

* More cleanup.

* Removing rendering of workflow visualization and adding basic support for mermaid format.

* Adding basic mermaid tests.

* Improving sample. Switching to another branch.

* About to merge from main.

* Formatting.

* More fromatting.

* Removng uneeded call to ToUpper.

* Adding README.

* Moving samples under workflow to workflows.

* Removing uneeded README for map-reduce sample.

python/samples/getting_started/workflows/parallelism/map_reduce_and_visualization.py

@@ -299,7 +299,7 @@ async def main():
         print("Tip: Install 'viz' extra to export workflow visualization: pip install agent-framework[viz]")
 
     # Step 3: Open the text file and read its content.
-    async with aiofiles.open(os.path.join(DIR, "resources", "long_text.txt"), "r") as f:
+    async with aiofiles.open(os.path.join(DIR, "../resources", "long_text.txt"), "r") as f:
         raw_text = await f.read()
 
     # Step 4: Run the workflow with the raw text as input.

python/uv.lock

@@ -5942,4 +5942,4 @@ source = { registry = "https://pypi.org/simple" }
 sdist = { url = "https://files.pythonhosted.org/packages/e3/02/0f2892c661036d50ede074e376733dca2ae7c6eb617489437771209d4180/zipp-3.23.0.tar.gz", hash = "sha256:a07157588a12518c9d4034df3fbbee09c814741a33ff63c05fa29d26a2404166", size = 25547, upload-time = "2025-06-08T17:06:39.4Z" }
 wheels = [
     { url = "https://files.pythonhosted.org/packages/2e/54/647ade08bf0db230bfea292f893923872fd20be6ac6f53b2b936ba839d75/zipp-3.23.0-py3-none-any.whl", hash = "sha256:071652d6115ed432f5ce1d34c336c0adfd6a884660d1e9712a256d3d3bd4b14e", size = 10276, upload-time = "2025-06-08T17:06:38.034Z" },
-]
+]