Update app.py

app.py

@@ -249,7 +249,7 @@ def health():
 
 @app.get("/")
 def root():
-    return PlainTextResponse("ActualTTS (CPU) — use POST /speak or WS /ws/tts")
+    return PlainTextResponse("ActualTTS (CPU) — use POST /speak, GET/POST /speak.wav, or WS /ws/tts")
 
 @app.get("/file/{name}")
 def get_file(name: str):
@@ -335,7 +335,7 @@ async def speak_wav_get(
     length_scale: float = 1.08,
     noise_scale: float = 0.35,
     noise_w: float = 0.90,
-    background_tasks: BackgroundTasks | None = None,
+    background_tasks: BackgroundTasks = ...,
 ):
     """GET query -> returns audio/wav directly"""
     text = (text or "").strip()
@@ -351,7 +351,6 @@ async def speak_wav_get(
     except Exception as e:
         return JSONResponse({"ok": False, "error": str(e)}, status_code=500)
 
-    background_tasks = background_tasks or BackgroundTasks()
     background_tasks.add_task(_safe_unlink, out_path)
     return FileResponse(out_path, media_type="audio/wav", filename=out_path.name, background=background_tasks)