Tutorial request: Stereo-seq (BGI STOmics) analysis — bin vs cellbin #1228

Description of feature

First, thanks for squidpy — the per-platform tutorials (Visium, Xenium, MERFISH,
seqFISH, Slide-seqV2, Vizgen, IMC, MIBI-TOF, CosMx, 4i) are extremely useful.

One major platform is missing: Stereo-seq (BGI / STOmics). It's one of the
most widely used spatial transcriptomics technologies (large-FOV whole-organ /
whole-embryo atlases), and many of us run squidpy on it, but there is no official
guidance — so people keep guessing at the correct setup. Would the maintainers
(or community) consider adding a Stereo-seq tutorial? I'm happy to help and can
provide real data for testing.