Revert "Merge branch 'main' of https://github.com/josedario87/conversation-layer"

This reverts commit b508bea3dd, reversing
changes made to 4c4052bb64.

whatsapp-router/src/transcribeAudioMessage.ts

@@ -1,55 +0,0 @@
-// transcribeAudioMessage.ts
-import { WhatsAppMessage } from './types';
-import { decryptMedia } from '@open-wa/wa-automate';
-import axios from 'axios';
-import { GoogleGenAI, createUserContent } from '@google/genai';
-
-/**
- * Transcribe un mensaje de audio de WhatsApp usando Gemini.
- * @param message - Mensaje recibido desde OpenWA.
- * @returns Texto transcrito o null si no era un audio válido.
- */
-export async function transcribeAudioMessage(message: WhatsAppMessage): Promise<string | null> {
-  if (
-    message.type !== 'ptt' &&
-    message.type !== 'audio' &&
-    message.mimetype !== 'audio/ogg; codecs=opus'
-  ) {
-    return null;
-  }
-
-  const audioUrl = message.clientUrl || message.deprecatedMms3Url;
-  if (!audioUrl) throw new Error('El mensaje no tiene URL de audio');
-
-  const raw = await axios.get(audioUrl, { responseType: 'arraybuffer' });
-
-  const enrichedMessage = {
-    ...message,
-    _data: {
-      ...message,
-      _raw: raw.data
-    }
-  };
-
-  const decryptedBuffer = await decryptMedia(enrichedMessage as any);
-  const base64Audio = decryptedBuffer.toString('base64');
-
-  const apiKey = process.env.GOOGLE_API_KEY;
-  if (!apiKey) throw new Error('Falta GOOGLE_API_KEY');
-
-  const genAI = new GoogleGenAI({ apiKey });
-  const result = await genAI.models.generateContent({
-    model: 'gemini-2.0-flash',
-    contents: createUserContent([
-      {
-        inlineData: {
-          mimeType: 'audio/ogg',
-          data: base64Audio
-        }
-      },
-      'Transcribí este audio porfa. te estaran hablando en español honduras.'
-    ])
-  });
-
-  return result.text?.trim() || null;
-}