Add Terraria player detection via log parsing

- Add getTerrariaPlayers function in ssh.js for PM2 log parsing
- Support German and English join/leave messages
- Update rcon.js to use Terraria log parsing
- Add Terraria to player fetch conditions in servers.js
- Update autoshutdown.js and discordBot.js for Terraria support
- Update config path to tModLoader directory
- Add global error handlers in server.js
- Update CLAUDE.md with deployment rules and Terraria info

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

gsm-backend/server.js

@@ -9,6 +9,16 @@ import { initDiscordBot } from './services/discordBot.js';
 
 config();
 
+// Global error handlers to prevent crashes
+process.on('uncaughtException', (err) => {
+  console.error('[FATAL] Uncaught Exception:', err.message);
+  console.error(err.stack);
+});
+
+process.on('unhandledRejection', (reason, promise) => {
+  console.error('[ERROR] Unhandled Promise Rejection:', reason);
+});
+
 const app = express();
 const PORT = process.env.PORT || 3000;