Fix GS task selection

app.py

@@ -85,7 +85,8 @@ APP_ROOT = Path(__file__).resolve().parent
 EXAMPLES_DIR = APP_ROOT / "example_data"
 INPUT_SIZE = (768, 1024)
 APP_NAME = "infinidepth-hf-demo"
-TASK_CHOICES = ["Depth", "3DGS"]
+GS_TASK_CHOICE = "3DGS"
+TASK_CHOICES = ["Depth", GS_TASK_CHOICE]
 MODEL_CHOICES = ["InfiniDepth", "InfiniDepth_DepthSensor"]
 OUTPUT_MODE_CHOICES = ["upsample", "original", "specific"]
 GS_SAMPLE_POINT_NUM = 2000000
@@ -346,7 +347,7 @@ def _select_example(evt: gr.SelectData):
 
 
 def _primary_view_for_task(task_type: str):
-    selected_tab = GS_VIEW_TAB_ID if task_type == "GS" else DEPTH_VIEW_TAB_ID
+    selected_tab = GS_VIEW_TAB_ID if task_type == GS_TASK_CHOICE else DEPTH_VIEW_TAB_ID
     return gr.update(selected=selected_tab)
 
 
@@ -691,7 +692,7 @@ def _run_inference(
     cy_org: Optional[float],
     request: gr.Request,
 ):
-    if task_type == "GS":
+    if task_type == GS_TASK_CHOICE:
         return _run_gs_inference(
             image=image,
             depth_file=depth_file,