feat: Add new Geometry Nodes groups for image relief and shadeless shader

- Implemented the "O Image Relief Plane" Geometry Nodes group to create a fixed-base image relief using depth images and various parameters.
- Created the "O Shadeless" shader node group to display color without scene lighting while preserving shadows and reflections.
- Introduced a preview feature for node groups, allowing for interactive visualization of node arrangements in an HTML format.
- Added a template HTML file for rendering node previews with customizable views and controls.

tools/nodes/build.py

@@ -0,0 +1,48 @@
+"""Build, arrange, and save the bundled node library."""
+from pathlib import Path
+
+import bpy
+
+from .arrangement.arrange import arrange_nodes
+from .groups.image_plane import build_image_plane_group
+from .groups.image_depth_plane import build_image_depth_plane_group
+from .groups.image_relief_plane import build_image_relief_plane_group
+from .groups.image_cutout import build_image_cutout_group
+from .groups.image_depth_cutout import build_image_depth_cutout_group
+from .groups.image_depth_balloon import build_image_depth_balloon_group
+from .groups.image_layer import build_image_layer_group
+from .groups.image_depth_layer import build_image_depth_layer_group
+from .groups.shadeless import build_shadeless_group
+
+
+OUTPUT_PATH = Path(__file__).resolve().parents[2] / "src/anyimage/assets/O_AnyImage.blend"
+
+
+def build_node_groups():
+    """Build each asset once in dependency order."""
+    image_plane = build_image_plane_group()
+    return [
+        image_plane,
+        build_image_depth_plane_group(image_plane),
+        build_image_relief_plane_group(image_plane),
+        build_image_cutout_group(),
+        build_image_depth_cutout_group(),
+        build_image_depth_balloon_group(),
+        build_image_layer_group(),
+        build_image_depth_layer_group(),
+        build_shadeless_group(),
+    ]
+
+
+def main():
+    bpy.ops.wm.read_factory_settings(use_empty=True)
+    bpy.context.preferences.filepaths.save_version = 0
+    for node_group in build_node_groups():
+        if node_group.bl_idname == "GeometryNodeTree":
+            arrange_nodes(node_group)
+    OUTPUT_PATH.parent.mkdir(parents=True, exist_ok=True)
+    bpy.ops.wm.save_as_mainfile(filepath=str(OUTPUT_PATH), check_existing=False)
+
+
+if __name__ == "__main__":
+    main()