fix: Resolve merge conflicts in tts_service.py, ensuring proper integration of gTTS for text-to-speech functionality and maintaining MP3 format support.

services/tts_service.py

@@ -1,10 +1,7 @@
 import uuid
 from pathlib import Path
 from config import GROQ_TTS_API_KEY, GROQ_TTS_MODEL
-<<<<<<< Updated upstream
-=======
 from gtts import gTTS
->>>>>>> Stashed changes
 
 def text_to_speech(
     text: str,
@@ -15,7 +12,6 @@ def text_to_speech(
     Convert text to speech using gTTS (Google Translate, free).
     Only MP3 is supported.
     """
-<<<<<<< Updated upstream
     if not GROQ_TTS_API_KEY:
         raise RuntimeError("GROQ_TTS_API_KEY is not set in config")
     
@@ -36,14 +32,12 @@ def text_to_speech(
         "response_format": fmt
     }
     
-=======
     if not text or not text.strip():
         raise ValueError("Text cannot be empty")
 
     if fmt != "mp3":
         raise ValueError("Only MP3 format is supported by the free TTS backend")
 
->>>>>>> Stashed changes
     try:
         temp_dir = Path("temp_audio")
         temp_dir.mkdir(exist_ok=True)