Fix onboarding webhook timeout by running quest creation in background

bot/conversations/onboarding.ts

@@ -155,8 +155,16 @@ export async function onboardingConversation(conversation: BotConversation, ctx:
     return
   }
 
-  const result = await conversation.external(() =>
+  const chatId = ctx.chat?.id
-    createQuestFromOnboarding({
+  if (!chatId) {
+    await ctx.reply('Something went wrong. Please try /start again.')
+    return
+  }
+
+  // Run heavy generation in background so webhook handlers can return quickly.
+  void (async () => {
+    try {
+      const result = await createQuestFromOnboarding({
         userId,
         cityId,
         cityName,
@@ -166,10 +174,9 @@ export async function onboardingConversation(conversation: BotConversation, ctx:
         userComment,
         lang,
       })
-  )
 
       if (!result) {
-    await ctx.reply('Something went wrong. Please try /start again.')
+        await ctx.api.sendMessage(chatId, 'Something went wrong. Please try /start again.')
         return
       }
 
@@ -180,12 +187,21 @@ export async function onboardingConversation(conversation: BotConversation, ctx:
         description: result.description,
       }) + (isHttps ? '' : `\n\n🔗 ${appUrl}`)
 
-  await ctx.reply(
+      await ctx.api.sendMessage(
+        chatId,
         questText,
         isHttps ? {
           reply_markup: {
-        inline_keyboard: [[ { text: t(lang, 'open_quest'), web_app: { url: appUrl } } ]],
+            inline_keyboard: [[{ text: t(lang, 'open_quest'), web_app: { url: appUrl } }]],
           },
         } : {}
       )
+    } catch (error) {
+      console.error('Background quest creation failed:', error)
+      await ctx.api.sendMessage(chatId, 'Something went wrong. Please try /start again.')
+    }
+  })()
+
+  // Conversation finishes immediately; final quest message will be sent by background task.
+  return
 }