Add hidden MCP API endpoint for mcp_generate

app.py

@@ -1645,5 +1645,24 @@ with gr.Blocks(title="Z Image Turbo", css=css, theme=dark_theme) as demo:
         """,
         elem_classes="footer-no-box"
     )
+    
+    # MCP API Endpoints - Hidden components for direct API access
+    with gr.Row(visible=False):
+        mcp_prompt_in = gr.Textbox()
+        mcp_style_in = gr.Dropdown(choices=STYLES, value="None")
+        mcp_ratio_in = gr.Dropdown(choices=RATIOS, value="1:1 Square (1024x1024)")
+        mcp_steps_in = gr.Slider(minimum=4, maximum=16, value=9)
+        mcp_seed_in = gr.Number(value=42)
+        mcp_random_in = gr.Checkbox(value=True)
+        mcp_image_out = gr.Image(type="pil")
+        mcp_seed_out = gr.Number()
+        mcp_gen_btn = gr.Button()
+        
+        mcp_gen_btn.click(
+            fn=mcp_generate,
+            inputs=[mcp_prompt_in, mcp_style_in, mcp_ratio_in, mcp_steps_in, mcp_seed_in, mcp_random_in],
+            outputs=[mcp_image_out, mcp_seed_out],
+            api_name="mcp_generate"
+        )
 
 demo.launch(mcp_server=True)