Add Hytale server support with tmux runtime

- Add tmux runtime support to ssh.js (status, start, stop, logs, uptime)
- Add Hytale server configuration to config.json
- Add Hytale server info and logo to frontend (ServerCard, ServerDetail)
- Add Hytale emoji to Discord notification mapping
- Update documentation with Hytale server details

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

gsm-frontend/src/components/ServerCard.jsx

@@ -53,6 +53,13 @@ const serverInfo = {
     links: [
       { label: 'Steam', url: 'https://store.steampowered.com/app/1536610/OpenTTD/' }
     ]
+  },
+  hytale: {
+    address: 'hytale.zeasy.dev',
+    logo: '/hytale.png',
+    links: [
+      { label: 'Website', url: 'https://hytale.com/' }
+    ]
   }
 }
 
@@ -65,6 +72,7 @@ const getServerInfo = (serverName) => {
   if (name.includes('palworld')) return serverInfo.palworld
   if (name.includes('terraria')) return serverInfo.terraria
   if (name.includes('openttd')) return serverInfo.openttd
+  if (name.includes('hytale')) return serverInfo.hytale
   return null
 }