canbus: DSI alert pings Wes directly instead of @here

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

canbus/ha/dsi_fault_alert.yaml

@@ -17,7 +17,7 @@ rest_command:
     payload: >-
       {"username": "Camper OneControl",
        "content": {{ message | tojson }},
-       "allowed_mentions": {"parse": ["everyone"]}}
+       "allowed_mentions": {"users": ["321798967669030912"]}}
 
 automation:
   - id: camper_dsi_fault_discord
@@ -34,8 +34,8 @@ automation:
       - action: rest_command.discord_server_alerts
         data:
           message: >-
-            @here 🔥 **WATER HEATER DSI FAULT** — hey dumbass, you're out of
-            propane again. (Or the igniter finally died, but let's be honest,
+            <@321798967669030912> 🔥 **WATER HEATER DSI FAULT** — hey dumbass,
+            you're out of propane again. (Or the igniter finally died, but let's be honest,
             it's the propane.) The heater is in lockout — swap the tank, then
             cycle the heater off/on to relight.
     mode: single