feat(node_assets): add image plane geometry nodes and validation scripts

- Implemented `image_plane.py` to build the Image Plane Geometry Nodes group with customizable parameters for geometry, subdivide, and thickness.
- Created `image_plane_validation.py` to validate the functionality of the image plane, ensuring correct geometry generation and material assignment.
- Developed `material_layers.py` to construct shader node groups for image materials, including depth and normal handling.
- Authored `plane_layouts.py` to define node arrangements for image geometry assets.
- Introduced `shadeless.py` to create a shadeless shader node group that displays color without scene lighting while preserving shadows and reflections.

src/anyimage/panel.py

@@ -1,11 +1,6 @@
 import bpy
 
 from .runtime import runtime
-from .properties import (
-    BEN2_MODEL_KEY,
-    model_ready,
-)
-from .server.model_catalog import UPSCALE_MODELS
 
 class ServerPanel(bpy.types.Panel):
     bl_label = "Job Server"
@@ -110,154 +105,3 @@ class ServerPanel(bpy.types.Panel):
                 text="",
                 icon="TRASH",
             )
-
-
-class DebugPanel(bpy.types.Panel):
-    bl_label = "Debug"
-    bl_idname = "ANYIMAGE_PT_debug"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "AnyImage"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_order = 2
-
-    def draw(self, context):
-        layout = self.layout
-        settings = context.scene.anyimage_settings
-
-        layout.prop(settings, "device")
-
-
-def draw_da3_input_settings(layout, settings, model_property):
-    layout.prop(settings, model_property)
-    layout.prop(settings, "input_path")
-    input_path = bpy.path.abspath(settings.input_path)
-    if input_path.lower().endswith(
-        (
-            ".mp4",
-            ".mov",
-            ".avi",
-            ".mkv",
-            ".webm",
-            ".m4v",
-            ".mts",
-            ".mpg",
-            ".mpeg",
-        )
-    ):
-        layout.prop(settings, "video_frames")
-    layout.prop(settings, "process_res")
-    layout.prop(settings, "process_res_method")
-    layout.prop(settings, "ref_view_strategy")
-
-
-class Da3OutputDebugPanel(bpy.types.Panel):
-    bl_label = "DA3"
-    bl_idname = "ANYIMAGE_PT_debug_da3_output"
-    bl_parent_id = DebugPanel.bl_idname
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "AnyImage"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_order = 1
-
-    def draw(self, context):
-        layout = self.layout
-        settings = context.scene.anyimage_settings
-
-        draw_da3_input_settings(layout, settings, "model")
-        export_row = layout.row()
-        export_row.enabled = (
-            not runtime.server_busy()
-            and model_ready(settings.model)
-        )
-        export_row.operator(
-            "anyimage.debug_da3",
-            text="Run DA3 API",
-            icon="EXPORT",
-        )
-
-
-class Moge2ApiDebugPanel(bpy.types.Panel):
-    bl_label = "MoGe-2"
-    bl_idname = "ANYIMAGE_PT_debug_moge2_api"
-    bl_parent_id = DebugPanel.bl_idname
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "AnyImage"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_order = 0
-
-    def draw(self, context):
-        layout = self.layout
-        settings = context.scene.anyimage_settings
-        layout.prop(settings, "input_path")
-        layout.prop(settings, "moge_model")
-        layout.prop(settings, "moge_resolution_level")
-        run_row = layout.row()
-        run_row.enabled = (
-            not runtime.server_busy()
-            and model_ready(settings.moge_model)
-        )
-        run_row.operator(
-            "anyimage.debug_moge2",
-            text="Run MoGe-2 API",
-            icon="EXPORT",
-        )
-
-
-class Ben2RemovalDebugPanel(bpy.types.Panel):
-    bl_label = "BEN2"
-    bl_idname = "ANYIMAGE_PT_debug_ben2_removal"
-    bl_parent_id = DebugPanel.bl_idname
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "AnyImage"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_order = 2
-
-    def draw(self, context):
-        layout = self.layout
-        settings = context.scene.anyimage_settings
-
-        layout.prop(settings, "background_input_path")
-        background_row = layout.row()
-        background_row.enabled = (
-            not runtime.server_busy()
-            and model_ready(BEN2_MODEL_KEY)
-        )
-        background_row.operator(
-            "anyimage.debug_ben2",
-            text="Remove Background",
-            icon="IMAGE_ALPHA",
-        )
-
-
-class UpscaleDebugPanel(bpy.types.Panel):
-    bl_label = "Upscale"
-    bl_idname = "ANYIMAGE_PT_debug_upscale"
-    bl_parent_id = DebugPanel.bl_idname
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "AnyImage"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_order = 3
-
-    def draw(self, context):
-        layout = self.layout
-        settings = context.scene.anyimage_settings
-        layout.prop(settings, "input_path")
-        input_path = bpy.path.abspath(settings.input_path)
-        if input_path.lower().endswith(
-            (".mp4", ".mov", ".avi", ".mkv", ".webm", ".m4v", ".mts", ".mpg", ".mpeg")
-        ):
-            layout.prop(settings, "video_frames")
-        for model in UPSCALE_MODELS.values():
-            row = layout.row()
-            row.enabled = not runtime.server_busy() and model_ready(model.key)
-            operator = row.operator(
-                "anyimage.debug_upscale",
-                text=f"Run {model.label} API",
-                icon="EXPORT",
-            )
-            operator.model = model.key