Snapquery/Scholia Graph Split

see Scholia issue #2664: all SPARQL queries need checking to not run on legacy

Steps:

let snapquery run all (scholia) queries against the current main graph
compare to result of queries against legacy graph on different endpoints (Wikimedia Foundation, scatter-red, RWTH-DBIS, Wolfgang's personal fur)

wf@fur:~/source/python$ git clone https://github.com/WolfgangFahl/snapquery
Cloning into 'snapquery'...
remote: Enumerating objects: 2194, done.
remote: Counting objects: 100% (747/747), done.
remote: Compressing objects: 100% (333/333), done.
remote: Total 2194 (delta 462), reused 680 (delta 401), pack-reused 1447 (from 1)
Receiving objects: 100% (2194/2194), 1.75 MiB | 8.73 MiB/s, done.
Resolving deltas: 100% (1538/1538), done.
cd snapquery
pipx install snapquery
...
Successfully installed fastapi-0.115.13 h11-0.16.0 httpcore-1.0.9 jinja2-3.1.6 nameparser-1.1.3 narwhals-1.43.1 ngwidgets-0.28.0 nicegui-2.20.0 packaging-25.0 plotly-6.1.2 py-ez-wikidata-0.3.1 pyopensourceprojects-0.2.3 python-engineio-4.12.2 requests-2.32.4 snapquery-0.1.0 starlette-0.46.2