docs: purge the retired workstation from auto-learned memory and the backup snapshot

Finishes the purge. These two surfaces were left out of the earlier commit
because the memory store is auto-generated, but both are read back into every
future session, so the name was still reaching the agent.

58 sites across 16 files: hostname, both LAN addresses, the SSID. Special-cased
the compound names a blind token swap breaks ('dank@the workstation/dankclaw',
'on the workstation/Dankclaw/Dankserver') and reworded the four that came out
ungrammatical. Facts kept: the hardware inventory of the box, the noctalia
architecture history, and today's own purge lessons all survive intact — only
the identifiers are gone.

Non-memory: the tracked .pre-pull-backup snapshot of a managed skill, whose
live counterpart was already clean.

agent/memories/--home-dank-Projects-serverAppConfigs--/skills/homelab-service-triage/SKILL.md

@@ -1,6 +1,6 @@
 # Homelab service triage
 
-Use this when checking service state across Dankclaw/Dankserver from Dankware or another controller.
+Use this when checking service state across Dankclaw/Dankserver from the workstation or another controller.
 
 1. Start from the repo and trust current repo state over memory:
    - cd /home/dank/Projects/serverAppConfigs