Explain the difference between Use, Run, and Map in middleware configuration.

• Use – Adds middleware that can process the request and optionally call the next middleware via a next delegate.
• Run – Adds terminal middleware that does not call the next component; it ends the pipeline.
• Map – Branches the pipeline based on the request path, creating sub-pipelines for specific URL segments.

Together, they give fine-grained control over the shape and branching of the request pipeline.