config, deploy: the workstation is workpc, not bugmachine (V-490)

Owner's correction. It is the same host CLAUDE.md already calls workpc, and
two names for one machine read as two machines. The dated eval file keeps the
old name: a measurement is never edited after the day it was taken.

deploy/mavend.json

@@ -40,7 +40,7 @@
   },
 
   "//workstation": [
-    "The big model on the desk PC (bugmachine, 7900 GRE 16GB), fronted by",
+    "The big model on the desk PC (workpc, 7900 GRE 16GB), fronted by",
     "mavgpud on port 8080. It runs gemma-4-12b and it is preferred over the",
     "resident Qwen3-1.7B for routing and replies whenever the card is free.",
     "The machine is never assumed up: it sleeps, and the card is often held by",