finos/common-domain-model ? reverse-engineered prompt

Build me a clean local setup for the FINOS Common Domain Model so I can browse the model, read the docs, and see example trade lifecycle concepts without having to understand all the build details up front.

I want the project to work from a fresh clone, with clear steps to install, generate whatever needs to be generated, run the tests, and start the documentation website locally. Please make sure the site presents the CDM in a simple way, with the main purpose, the core ideas behind financial products and trade events, and a few examples that make it easier to understand.

If there are any current docs or tool versions I should follow, look them up online and use the latest sensible approach. Also make the setup feel polished, so someone new to the repository can open it and immediately know where to go next.