fix: bot no longer crashes container on invalid token

- bot.js: 5 retries with 5s delay on init, graceful fallback to null
- errorHandler.js: 5 retries on 404 (invalid token), stops polling after
  max retries but keeps process alive for admin panel
- config.js: BOT_TOKEN missing logs warning instead of process.exit
- index.js: bot handlers only registered when bot is available,
  admin panel always starts regardless of bot status

src/context/bot.js

@@ -2,17 +2,45 @@ import TelegramBot from "node-telegram-bot-api";
 import config from "../config/config.js";
 import logger from "../utils/logger.js";
 
-const initBot = () => {
-    try {
-        const bot = new TelegramBot(config.BOT_TOKEN, {polling: true});
-        logger.info('Bot initialized successfully');
-        return bot;
-    } catch (error) {
-        logger.error({ err: error }, 'Failed to initialize bot');
-        process.exit(1);
+const MAX_RETRIES = 5;
+const RETRY_DELAY_MS = 5000;
+
+let bot = null;
+let botAvailable = false;
+
+const initBot = async () => {
+    if (!config.BOT_TOKEN) {
+        logger.warn('No BOT_TOKEN configured. Running in admin-only mode.');
+        return null;
     }
+    for (let attempt = 1; attempt <= MAX_RETRIES; attempt++) {
+        try {
+            const instance = new TelegramBot(config.BOT_TOKEN, {polling: true});
+            await new Promise((resolve, reject) => {
+                const timeout = setTimeout(() => {
+                    instance.stopPolling();
+                    reject(new Error('Bot initialization timeout'));
+                }, 15000);
+                instance.getMe().then(() => {
+                    clearTimeout(timeout);
+                    resolve();
+                }).catch(reject);
+            });
+            logger.info({ attempt }, 'Bot initialized successfully');
+            botAvailable = true;
+            return instance;
+        } catch (error) {
+            logger.warn({ attempt, maxRetries: MAX_RETRIES, err: error.message }, 'Bot initialization failed');
+            if (attempt < MAX_RETRIES) {
+                await new Promise(r => setTimeout(r, RETRY_DELAY_MS));
+            }
+        }
+    }
+    logger.error({ maxRetries: MAX_RETRIES }, 'All bot initialization attempts failed. Running in admin-only mode.');
+    return null;
 };
 
-const bot = initBot();
+bot = await initBot();
 
+export { botAvailable };
 export default bot;