add bot debug logging and fallback logic

server/bot.js

@@ -8,6 +8,7 @@ bot.start(async (ctx) => {
     const payload = ctx.startPayload;
     const isGroup = ctx.chat.type === 'group' || ctx.chat.type === 'supergroup';
     const botUser = ctx.botInfo.username;
+    console.log(`[Bot Start] Chat: ${ctx.chat.id} (${ctx.chat.type}), Payload: ${payload}`);
 
     if (isGroup) {
         const rawPayload = `${ctx.chat.id}|${ctx.chat.title}`;
@@ -23,21 +24,26 @@ bot.start(async (ctx) => {
     if (payload) {
         try {
             const decoded = Buffer.from(payload.replace(/-/g, '+').replace(/_/g, '/'), 'base64').toString();
-            const [vId, vName] = decoded.split('|');
-            const finalUrl = `${APP_URL}?vId=${vId}&vName=${encodeURIComponent(vName)}&uName=${encodeURIComponent(ctx.from.first_name)}`;
-
-            return ctx.replyWithMarkdown(
-                `🏺 **Invitation to ${vName}**\n\nYou've been invited to join the festival as a hero for **${vName}**. Are you ready to battle?`,
-                Markup.inlineKeyboard([[Markup.button.webApp(`🏮 JOIN VILLAGE ${vName.toUpperCase()}`, finalUrl)]])
-            );
+            console.log("[Payload Decoded]", decoded);
+            const parts = decoded.split('|');
+            if (parts.length >= 2) {
+                const [vId, vName] = parts;
+                const finalUrl = `${APP_URL}?vId=${vId}&vName=${encodeURIComponent(vName)}&uName=${encodeURIComponent(ctx.from.first_name)}`;
+
+                return ctx.replyWithMarkdown(
+                    `🏺 **Invitation to ${vName}**\n\nYou've been invited to join the festival as a hero for **${vName}**. Are you ready to battle?`,
+                    Markup.inlineKeyboard([[Markup.button.webApp(`🏮 JOIN VILLAGE ${vName.toUpperCase()}`, finalUrl)]])
+                );
+            }
         } catch (e) {
             console.error('Payload error:', e);
         }
     }
 
+    // Default Fallback
     return ctx.replyWithMarkdown(
-        `🏮 **Welcome to the Aurudu Festival!** 🏮\n\nJoin a village group to compete for the title of **Village Hero**, or play solo to practice!`,
-        Markup.inlineKeyboard([[Markup.button.webApp('🏮 ENTER BATTLE GROUND', APP_URL)]])
+        `🏮 **Welcome to the Aurudu Festival!** 🏮\n\nJoin a village group and click their **JOIN** button to compete for your community, or practice solo right now!`,
+        Markup.inlineKeyboard([[Markup.button.webApp('🏮 ENTER BATTLE GROUND (SOLO)', APP_URL)]])
     );
 });