Only prompt feedback after multi-round agent sessions

Billing and asset agents (single-shot) no longer trigger the star rating
feedback prompt after every response. Feedback is now only requested
after troubleshoot/onboarding sessions or when the conversation had 3+
exchanges in the last hour.

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

src/routes/handlers/message-handler.ts

@@ -89,32 +89,41 @@ export async function handleMessage(
       await storeConversation(env.DB, user.id, text, cleanText, requestId);
       await sendMessage(env.BOT_TOKEN, chatId, cleanText);
 
-      // Prompt feedback after session end
+      // Prompt feedback only after multi-round sessions (troubleshoot/onboarding)
       if (sessionEnded) {
+        const hadMultiRoundSession = await hasRecentMultiRoundSession(env.DB, telegramUserId);
+        if (hadMultiRoundSession) {
           await promptFeedback(env, chatId, lang, 'agent');
         }
+      }
       return;
     }
 
     // 5. Detect intent for new session creation
     let response: string | null = null;
+    let sessionType: string | null = null;
 
     if (ONBOARDING_PATTERNS.test(text)) {
       response = await onboardingAgent.processConsultation(env.DB, telegramUserId, text, env);
+      sessionType = 'onboarding';
     } else if (TROUBLESHOOT_PATTERNS.test(text)) {
       response = await troubleshootAgent.processConsultation(env.DB, telegramUserId, text, env);
+      sessionType = 'troubleshoot';
     } else if (BILLING_PATTERNS.test(text)) {
       response = await billingAgent.processConsultation(env.DB, telegramUserId, text, env);
+      sessionType = 'billing';
     } else if (ASSET_PATTERNS.test(text)) {
       response = await assetAgent.processConsultation(env.DB, telegramUserId, text, env);
+      sessionType = 'asset';
     }
 
     if (response) {
       const { cleanText, sessionEnded } = cleanSessionMarkers(response);
       await storeConversation(env.DB, user.id, text, cleanText, requestId);
       await sendMessage(env.BOT_TOKEN, chatId, cleanText);
-      if (sessionEnded) {
-        await promptFeedback(env, chatId, lang, 'agent');
+      // Only prompt feedback for multi-round agents
+      if (sessionEnded && (sessionType === 'troubleshoot' || sessionType === 'onboarding')) {
+        await promptFeedback(env, chatId, lang, sessionType);
       }
       return;
     }
@@ -134,6 +143,41 @@ export async function handleMessage(
   }
 }
 
+/**
+ * Check if the user recently had a multi-round session (troubleshoot/onboarding).
+ * Used to decide whether to prompt for feedback after active agent routing.
+ */
+async function hasRecentMultiRoundSession(db: D1Database, telegramUserId: string): Promise<boolean> {
+  try {
+    const result = await db
+      .prepare(
+        `SELECT
+          (SELECT COUNT(*) FROM troubleshoot_sessions WHERE user_id = ?) +
+          (SELECT COUNT(*) FROM onboarding_sessions WHERE user_id = ?) as count`
+      )
+      .bind(telegramUserId, telegramUserId)
+      .first<{ count: number }>();
+
+    // If session was just deleted (session end), check conversation history depth
+    if (!result || result.count === 0) {
+      const msgCount = await db
+        .prepare(
+          `SELECT COUNT(*) as count FROM conversations
+           WHERE user_id = (SELECT id FROM users WHERE telegram_id = ?)
+           AND created_at > datetime('now', '-1 hours')`
+        )
+        .bind(telegramUserId)
+        .first<{ count: number }>();
+      // At least 6 messages (3 exchanges) in the last hour = meaningful session
+      return (msgCount?.count ?? 0) >= 6;
+    }
+
+    return true;
+  } catch {
+    return false;
+  }
+}
+
 function cleanSessionMarkers(text: string): { cleanText: string; sessionEnded: boolean } {
   const sessionEnded = text.includes('[세션 종료]') || text.includes('__SESSION_END__');
   const cleanText = text