https://github.com/dimensionalOS/dimos/pull/1791#discussion_r3114904926 get rid of [GraphNodes3D.py](https://github.com/dimensionalOS/dimos/pull/1791/files/c54578a044f892fe7f231b468f2f3512adf4282a#diff-18e43da8555bb07c30700cdfd639b2b91554e6b478d201aa144eabaf1a702579)
#1791 (comment)
get rid of GraphNodes3D.py