docs(perf): record owner decisions on Flerovium and spawn tuning

.pi/journal.md

@@ -595,3 +595,7 @@ visual check; B13 spark; B14 ×3 more; ship via build.py; owner report.
 - Verified ModernFix honors the shipped override on the server boot log.
 - Open: owner decisions (Flerovium, spawn tuning); B13 spark (optional); fleet
   confirmation; push when the owner says so.
+- Owner approved: **Flerovium removed, spawn tuning reverted** (`217c346`). Server was
+  stopped while the three spawn files were deleted so it couldn't keep re-saved tuned
+  copies; restarted, Alex's Mobs regenerated defaults (gazelle weight 40). Bench
+  instance jar removed too. b14.py's `shipped` config now has nothing to ship.