Literature watch digest 2026-06-23 New papers: 1 Updated in place: 0 Skipped (dup): 0 Filtered (score < 3): 58 PDFs downloaded: 0 New paper files 2026-06-22-zhai-upregulation-of-atp-purinergic Connections [part-of] STRC [see-also] strc-lit-watch