Update app.py

app.py

@@ -80,14 +80,14 @@ def get_system_stats():
 with gr.Blocks(title="去背服務測試") as app:
     gr.Markdown("## ✂️ 去背服務測試")
     
-   with gr.Tabs():
+    with gr.Tabs():
         # Tab 1: Image Processing
         with gr.Tab("✂️ Remove Background"):
             with gr.Row():
                 img_in = gr.Image(type="pil", label="Input Image")
                 img_out = gr.Image(type="pil", label="Result (PNG)", format="png")
-                btn = gr.Button("Remove Background", variant="primary")
-                btn.click(process, inputs=img_in, outputs=img_out)
+            btn = gr.Button("Remove Background", variant="primary")
+            btn.click(process, inputs=img_in, outputs=img_out)
             
         # Tab 2: System Monitor (UI for Space Page)
         with gr.Tab("📊 System Monitor"):