Simplify SETA v2 dataset summary

seta_v2/README.md

@@ -2,11 +2,8 @@
 
 ## Dataset stats
 
-- **Source pool:** 4,567 native tasks.
-- **Archived before v2:** 1,460 total — 1,414 excluded during upstream conversion and 46 archived during v1 validation. The upstream exclusions are included in this total.
-- **Carried from v1 into v2:** 3,107 tasks, all previously patched.
-- **SETA v2 release:** 2,205 tasks included, including 55 newly retained after pass@16 recovery; 902 archived from this release.
-- **Environments:** v2 reuses the cached Apptainer environments from v1. No new images or task repairs were added in v2.
+- **Tasks:** 4,567 original SETA tasks; 3,107 kept in v1. The current v2 release keeps 2,205 and archives 902. Archived tasks have no recorded model success in the available results; some runs are incomplete.
+- **Environments:** v2 reuses the cached Apptainer environments from v1.
 
 ## Dataset characteristics