[BugFix] Docs: Build Static Assets Before Generating Markdown Files

[deeleeramone]

1. Why?:

   • When the docs pages were deployed, the static assets were built before generating the reference markdown files.

2. What?:

   • Adds: poetry run python -c "import openbb; openbb.build()" after dev_install.py -e.

3. Impact:

   • Documentation site should now show all routers and models.

4. Testing Done:

   • Tested the sequence of actions locally.

   • Example: "Validated with historical market data and simulated scenarios."