Remove deprecated queue(), set max_threads

app.py

@@ -43,7 +43,6 @@ def build_auth() -> List[Tuple[str, str]] | None:
 def build_demo(html: str, auth: List[Tuple[str, str]] | None) -> gr.Blocks:
     with gr.Blocks(title="LibraxisAI API Batch Tester", css="body{background:#0b0b0c;}") as demo:
         gr.HTML(html)
-    demo.queue(concurrency_count=1)
     port = int(os.getenv("PORT", os.getenv("GRADIO_PORT", "7860")))
     demo.launch(
         server_name="0.0.0.0",
@@ -51,6 +50,7 @@ def build_demo(html: str, auth: List[Tuple[str, str]] | None) -> gr.Blocks:
         auth=auth,
         show_api=False,
         inline=False,
+        max_threads=8,
     )
     return demo