Add new node asset scripts for geometry and shader operations

- Implemented `build_mesh_plane.py` to create a geometry node group for mesh planes with customizable parameters.
- Created `build_shadeless.py` for a shader node group that displays color without scene lighting while preserving shadows and reflections.
- Added `validate.py` to validate the integrity of the newly created node groups and their inputs.
- Introduced `validate_cutout.py` to ensure the functionality of cutout node groups and their dependencies.
- Developed `validate_mesh_plane.py` to test the mesh plane creation and its modifier settings.

src/anyimage/properties.py

@@ -6,11 +6,7 @@ import sys
 
 import bpy
 
-from .preferences import (
-    DEFAULT_UPSCALE_MAX_OUTPUT_SIZE,
-    MAX_UPSCALE_OUTPUT_SIZE,
-    addon_preferences,
-)
+from .preferences import addon_preferences
 from .runtime import runtime
 from .server import model_catalog as shared_model_catalog
 
@@ -201,7 +197,7 @@ def depth_plane_model_enum_items(_owner, _context):
     return items
 
 
-def surface_model_enum_items(_owner, _context):
+def mesh_depth_model_enum_items(_owner, _context):
     models = [
         model
         for model in model_catalog()
@@ -223,18 +219,6 @@ def configured_upscale_model(context=None):
     return shared_model_catalog.DEFAULT_UPSCALE_MODEL_KEY
 
 
-def configured_upscale_max_output_size(context=None):
-    preferences = addon_preferences(context)
-    value = int(
-        getattr(
-            preferences,
-            "upscale_max_output_size",
-            DEFAULT_UPSCALE_MAX_OUTPUT_SIZE,
-        )
-    )
-    return min(max(value, 1024), MAX_UPSCALE_OUTPUT_SIZE)
-
-
 def upscale_model_label(model_key):
     model = shared_model_catalog.UPSCALE_MODELS.get(model_key)
     return model.label if model is not None else model_key