feat: add entry point with graceful shutdown and PM2 config

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ecosystem.config.cjs

@@ -0,0 +1,17 @@
+module.exports = {
+  apps: [{
+    name: 'telegram-media-bot',
+    script: './dist/index.js',
+    instances: 1,
+    autorestart: true,
+    watch: false,
+    max_memory_restart: '256M',
+    env: {
+      NODE_ENV: 'production',
+    },
+    error_file: './logs/error.log',
+    out_file: './logs/out.log',
+    merge_logs: true,
+    time: true,
+  }],
+};

src/index.ts

@@ -0,0 +1,42 @@
+import { config } from './config.js';
+import { createLogger, setLogLevel } from './utils/logger.js';
+import { createBot } from './bot.js';
+import { registerHandlers } from './telegram/handlers.js';
+
+const log = createLogger('Main');
+
+setLogLevel(config.logLevel as 'debug' | 'info' | 'warn' | 'error');
+
+async function main(): Promise<void> {
+  log.info('Starting Telegram Media Upload Bot...');
+  log.info(`Environment: ${config.nodeEnv}`);
+  log.info(`Payload API: ${config.payload.apiUrl}`);
+  log.info(`Default Tenant: ${config.defaultTenantId}`);
+  log.info(`Allowed Users: ${config.telegram.allowedUserIds.join(', ')}`);
+
+  const bot = createBot();
+  registerHandlers(bot);
+
+  // Graceful shutdown
+  const shutdown = async (signal: string) => {
+    log.info(`Received ${signal}, shutting down...`);
+    bot.stop();
+    setTimeout(() => {
+      log.warn('Forced shutdown after timeout');
+      process.exit(1);
+    }, 60_000);
+  };
+
+  process.on('SIGINT', () => shutdown('SIGINT'));
+  process.on('SIGTERM', () => shutdown('SIGTERM'));
+
+  // Start bot
+  await bot.start({
+    onStart: () => log.info('Bot is running! Listening for messages...'),
+  });
+}
+
+main().catch((error) => {
+  log.error('Fatal error', error);
+  process.exit(1);
+});