Fix generate_page_images option silently dropped in remote mode

The form data builder was not forwarding generate_page_images to
Docling Serve, so page image generation was silently ignored.

document-parser/infra/serve_converter.py

@@ -126,6 +126,7 @@ def _build_form_data(options: ConversionOptions) -> dict[str, str | list[str]]:
         "do_picture_classification": str(options.do_picture_classification).lower(),
         "do_picture_description": str(options.do_picture_description).lower(),
         "include_images": str(options.generate_picture_images).lower(),
+        "generate_page_images": str(options.generate_page_images).lower(),
         "images_scale": str(options.images_scale),
     }
 

document-parser/tests/test_serve_converter.py

@@ -32,6 +32,7 @@ class TestBuildFormData:
         assert data["do_picture_classification"] == "false"
         assert data["do_picture_description"] == "false"
         assert data["include_images"] == "false"
+        assert data["generate_page_images"] == "false"
         assert data["images_scale"] == "1.0"
         assert set(data["to_formats"]) == {"md", "html", "json"}