Fix HF runtime deps and Gradio buttons

app/ui.py

@@ -300,14 +300,12 @@ def build_ui(analyzer: SafetyAnalyzer | None = None) -> gr.Blocks:
                     label="Analyzed",
                     height=485,
                     elem_id="main-preview",
-                    show_download_button=True,
-                    show_fullscreen_button=False,
+                    buttons=["download"],
                 )
                 orig_view = gr.Image(
                     label="Original",
                     height=485,
-                    show_download_button=True,
-                    show_fullscreen_button=False,
+                    buttons=["download"],
                 )
                 gr.HTML(
                     """

src/depth_anything_3/api.py

@@ -31,7 +31,6 @@ from PIL import Image
 from depth_anything_3.cfg import create_object, load_config
 from depth_anything_3.registry import MODEL_REGISTRY
 from depth_anything_3.specs import Prediction
-from depth_anything_3.utils.export import export
 from depth_anything_3.utils.geometry import affine_inverse
 from depth_anything_3.utils.io.input_processor import InputProcessor
 from depth_anything_3.utils.io.output_processor import OutputProcessor
@@ -385,6 +384,8 @@ class DepthAnything3(nn.Module, PyTorchModelHubMixin):
         self, prediction: Prediction, export_format: str, export_dir: str, **kwargs
     ) -> None:
         """Export results to specified format and directory."""
+        from depth_anything_3.utils.export import export  # Lazy import to avoid optional deps (moviepy) on import time
+
         start_time = time.time()
         export(prediction, export_format, export_dir, **kwargs)
         end_time = time.time()

src/depth_anything_3/app/modules/ui_components.py

@@ -56,7 +56,7 @@ class UIComponents:
             label="Preview",
             columns=4,
             height="300px",
-            show_download_button=True,
+            buttons=["download"],
             object_fit="contain",
             preview=True,
             interactive=False,