build(docs): clean docs build

Author: mkumar73

justfile

@@ -41,6 +41,7 @@ test:
 
 # build HTML docs locally (warnings treated as errors)
 docs:
+    rm -rf docs/_build
     poetry run sphinx-build -b html docs/ docs/_build/html -W --keep-going
 
 # run all pre-commit hooks on all files including push-stage hooks (ruff, pyright, prettier)