feat: add voice transcription

app/models/voice.py

@@ -1,8 +1,17 @@
 from pydantic import BaseModel
+from typing import Optional
 
-
+# Text-to-Speech Models
 class VoiceRequest(BaseModel):
     text: str
 
 class VoiceResponse(BaseModel):
-    voice: str
+    voice_output: str
+
+# Speech-to-Text Models
+class TranscriptionRequest(BaseModel):
+    audio_file_path: str
+    target_language: Optional[str] = "id"  # Default to English
+
+class TranscriptionResponse(BaseModel):
+    text: str