add 2026Q1 arXiv fetch data

Author: TimidRobot

data/2026Q1/1-fetch/arxiv_1_count.csv

@@ -0,0 +1,8 @@
+"TOOL_IDENTIFIER","COUNT"
+"CC BY 3.0","7913"
+"CC BY 4.0","484648"
+"CC BY-NC-ND 4.0","76263"
+"CC BY-NC-SA 3.0","5874"
+"CC BY-NC-SA 4.0","57682"
+"CC BY-SA 4.0","26446"
+"CC0 1.0","19594"