Update Healer Man server

PLAYTEST_NOTES.md

@@ -14,6 +14,13 @@ camera, input, physics, mob-rendering, or asset-loading code changes.
 - The isolated model preview also loaded the same graph as one mesh layer. The
   combat test verified a fiend-owned damage event and 5% maximum-mana return
   from the successful hit. Full dungeon entry was not part of this check.
+- After moving model preparation into the Priest gameplay transition, the
+  preview waited for the same shared media cache before casting. In a fresh
+  Edge session, the graph and texture requests completed before the cast
+  (`15165.5 ms` and `15251.5 ms` versus cast at `15265.5 ms`); no page errors or
+  frame gap over 50 ms occurred after the cast. The source model remained visible
+  in `playtest-artifacts/shadowfiend/warmup-check.png`. This isolated preview does
+  not establish the full dungeon frame rate.
 
 ## 2026-09-26 RuneWaker dungeon minimap and M-key map