adds MCP server

descriptive how-to in docstring

app.py

@@ -43,6 +43,22 @@ def image_to_base64(image):
 
 @spaces.GPU()
 def process_image(image, task, ocr_type=None, ocr_box=None, ocr_color=None):
+    """
+    Process an input image using the OCR model based on the specified task.
+    
+    Args:
+        image (Union[dict, np.ndarray, str, PIL.Image]): Input image in various formats
+        task (str): Type of OCR task to perform
+        ocr_type (str, optional): Type of OCR processing ('ocr' or 'format')
+        ocr_box (str, optional): Bounding box coordinates for fine-grained OCR
+        ocr_color (str, optional): Color specification for fine-grained OCR
+        
+    Returns:
+        tuple: (result_text, html_content, unique_id)
+            - result_text (str): OCR processing result or error message
+            - html_content (str): HTML content for visualization if applicable
+            - unique_id (str): Unique identifier for the processed image
+    """
     if image is None:
         return "Error: No image provided", None, None
     
@@ -290,4 +306,4 @@ with gr.Blocks(theme=gr.themes.Base()) as demo:
 
 if __name__ == "__main__":
     cleanup_old_files()
-    demo.launch(ssr_mode = False)
+    demo.launch(ssr_mode = False, mcp_server=True)