feat: persistir respuestas en la cola con DB

Co-authored-by: aider (openrouter/openai/gpt-5) <aider@aider.chat>

src/services/response-queue.ts

@@ -1,14 +1,47 @@
+import type { Database } from 'bun:sqlite';
+import { db } from '../db';
+
 type QueuedResponse = {
   recipient: string;
   message: string;
 };
 
 export const ResponseQueue = {
+  // Permite inyectar una DB distinta en tests si se necesita
+  dbInstance: db as Database,
+
+  // Conservamos la cola en memoria por compatibilidad, aunque no se usa para persistencia
   queue: [] as QueuedResponse[],
   
   async add(responses: QueuedResponse[]) {
-    this.queue.push(...responses);
+    try {
-    console.log('Queued responses:', responses);
+      const botNumber = process.env.CHATBOT_PHONE_NUMBER;
+      const filtered = responses.filter(r =>
+        r.recipient &&
+        r.message &&
+        (!botNumber || r.recipient !== botNumber)
+      );
+
+      if (filtered.length === 0) {
+        return;
+      }
+
+      const insert = this.dbInstance.prepare(`
+        INSERT INTO response_queue (recipient, message)
+        VALUES (?, ?)
+      `);
+
+      this.dbInstance.transaction((rows: QueuedResponse[]) => {
+        for (const r of rows) {
+          insert.run(r.recipient, r.message);
+        }
+      })(filtered);
+
+      console.log('Queued responses (persisted):', filtered.length);
+    } catch (err) {
+      console.error('Failed to persist queued responses:', err);
+      throw err;
+    }
   },
 
   async process() {