feat: upgrade interface web e suporte a áudio completo

main.py

@@ -3,11 +3,12 @@ import psutil
 import subprocess
 import time
 import json
-from fastapi import FastAPI, Request, Header, Depends, HTTPException, status
-from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi import FastAPI, Request, Header, Depends, HTTPException, status, File, UploadFile
+from fastapi.responses import HTMLResponse, JSONResponse, FileResponse
 from fastapi.templating import Jinja2Templates
 from dotenv import load_dotenv
 from starlette.concurrency import run_in_threadpool
+import audio_handler
 
 from ai_agent import query_agent
 from config import get_config, save_config
@@ -111,6 +112,43 @@ async def web_chat(message: dict, is_auth: bool = Depends(verify_password)):
     reply = await run_in_threadpool(query_agent, prompt=user_text)
     return JSONResponse(content={"reply": reply})
 
+@app.post("/api/chat-audio")
+async def web_chat_audio(audio: UploadFile = File(...), is_auth: bool = Depends(verify_password)):
+    """Recebe áudio, transcreve, processa na IA e devolve texto + áudio de resposta."""
+    temp_path = f"/tmp/{audio.filename}"
+    with open(temp_path, "wb") as buffer:
+        buffer.write(await audio.read())
+    
+    try:
+        # Transcrição (STT)
+        user_text = await run_in_threadpool(audio_handler.transcribe_audio, temp_path)
+        
+        # IA (Processamento)
+        reply = await run_in_threadpool(query_agent, prompt=user_text)
+        
+        # Síntese (TTS)
+        audio_filename = await run_in_threadpool(audio_handler.text_to_speech, reply)
+        audio_url = f"/api/audio-file/{audio_filename}"
+        
+        return JSONResponse(content={
+            "text": user_text,
+            "reply": reply,
+            "audio_url": audio_url
+        })
+    except Exception as e:
+        return JSONResponse(content={"status": "error", "message": str(e)}, status_code=500)
+    finally:
+        if os.path.exists(temp_path):
+            os.remove(temp_path)
+
+@app.get("/api/audio-file/{filename}")
+async def get_audio_file(filename: str):
+    """Serve os arquivos de áudio temporários gerados pelo TTS."""
+    filepath = os.path.join("/tmp", filename)
+    if os.path.exists(filepath):
+        return FileResponse(filepath, media_type="audio/mpeg")
+    raise HTTPException(status_code=404, detail="Arquivo de áudio não encontrado.")
+
 @app.get("/api/test_llm")
 async def test_llm_speed(is_auth: bool = Depends(verify_password)):
     """Mede a velocidade de resposta da IA ativa."""