Fix feedback prompt by returning agent name from route registry

routeToActiveAgent now returns {response, agentName} so the message
handler can reliably determine which agent handled the request. Feedback
is only prompted for troubleshoot and onboarding agents, not billing
or asset single-shot agents.

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

src/agents/agent-registry.ts

@@ -39,17 +39,22 @@ export function registerAgent(
   registry.sort((a, b) => a.priority - b.priority);
 }
 
+export interface AgentRouteResult {
+  response: string;
+  agentName: string;
+}
+
 /**
  * 활성 세션이 있는 에이전트를 찾아 메시지를 라우팅합니다.
  *
- * @returns 에이전트 응답 또는 null (세션 없음)
+ * @returns 에이전트 응답+이름 또는 null (세션 없음)
  */
 export async function routeToActiveAgent(
   db: D1Database,
   userId: string,
   userMessage: string,
   env: Env
-): Promise<string | null> {
+): Promise<AgentRouteResult | null> {
   for (const entry of registry) {
     try {
       const hasSession = await entry.agent.hasSession(db, userId);
@@ -69,7 +74,7 @@ export async function routeToActiveAgent(
         continue;
       }
 
-      return response;
+      return { response, agentName: entry.name };
     } catch (error) {
       logger.error('에이전트 라우팅 실패, 다음 에이전트 확인', error as Error, {
         agent: entry.name,

src/routes/handlers/message-handler.ts

@@ -73,12 +73,12 @@ export async function handleMessage(
 
   try {
     // 4. Route to active agent session first
-    const agentResponse = await routeToActiveAgent(env.DB, telegramUserId, text, env);
-    if (agentResponse) {
-      const { cleanText, sessionEnded } = cleanSessionMarkers(agentResponse);
+    const agentResult = await routeToActiveAgent(env.DB, telegramUserId, text, env);
+    if (agentResult) {
+      const { cleanText, sessionEnded } = cleanSessionMarkers(agentResult.response);
 
       // Handle escalation marker
-      if (agentResponse.includes('__ESCALATE__')) {
+      if (agentResult.response.includes('__ESCALATE__')) {
         const cleaned = cleanText.replace('__ESCALATE__', '').trim();
         await storeConversation(env.DB, user.id, text, cleaned, requestId);
         await sendMessage(env.BOT_TOKEN, chatId, cleaned);
@@ -89,12 +89,10 @@ export async function handleMessage(
       await storeConversation(env.DB, user.id, text, cleanText, requestId);
       await sendMessage(env.BOT_TOKEN, chatId, cleanText);
 
-      // 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');
-        }
+      // Prompt feedback only after multi-round agents
+      const isMultiRound = agentResult.agentName === 'troubleshoot' || agentResult.agentName === 'onboarding';
+      if (sessionEnded && isMultiRound) {
+        await promptFeedback(env, chatId, lang, agentResult.agentName);
       }
       return;
     }
@@ -143,41 +141,6 @@ 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