fix: gr.Request injection on submit (keyword-only -> positional); E2E tested

app.py

@@ -103,7 +103,8 @@ def start(rater, request: gr.Request):
     return (gr.update(visible=False), gr.update(visible=True), q, a, b, t,
             _progress(), rater, item_id)
 
-def submit(rater, item_id, *choices, request: gr.Request):
+def submit(rater, item_id, c1, c2, c3, c4, request: gr.Request):
+    choices = (c1, c2, c3, c4)
     if (request.query_params.get("key") or "") != ACCESS_KEY:
         raise gr.Error("접근 키가 없습니다.")
     n_out = 6 + len(AXES)
@@ -140,4 +141,5 @@ with gr.Blocks(title="Chart A/B Evaluation") as demo:
     start_btn.click(start, [rater_in], [gate, panel, qmd, img_a, img_b, tbl, prog, rater_st, item_st])
     sub_btn.click(submit, [rater_st, item_st, *radios], [qmd, img_a, img_b, tbl, prog, item_st, *radios])
 
-demo.launch()
+if __name__ == "__main__":
+    demo.launch()