docs(heart): auto-update health dashboard block [skip ci]

Author: github-actions[bot]

README.md

@@ -16,7 +16,7 @@
 <!-- heart:begin -->
 ## 🔵 PyAuto health — **STALE** (score 65)
 
-_snapshot `2026-08-12T06:11:52.290445+00:00` · just now_
+_snapshot `2026-08-13T06:14:42.454688+00:00` · just now_
 
 **Evidence gaps (re-run, don't fix):** test run status unknown (no report.json); install verification not run; no release validation for current source