Add tests for clipboard image functionality and mesh plane asset creation

- Implemented a comprehensive test suite for the clipboard image module, covering various functionalities including operator registration, context handling, and image processing.
- Created a new mesh plane asset with customizable parameters and integrated it into the geometry node system.
- Developed a validation script to ensure the correct behavior of the mesh plane asset, including input handling and output verification.

src/anyimage/properties.py

@@ -104,7 +104,43 @@ def model_ready(model_key):
 
 
 def required_models_ready():
-    return all(model_ready(model_key) for model_key in REQUIRED_MODEL_KEYS)
+    return not ai_status()["missing_models"]
+
+
+def ai_status():
+    environment_ready = runtime.environment_ready()
+    ready_models = {
+        model["key"] for model in model_catalog() if model.get("ready")
+    }
+    missing_models = tuple(
+        model_key
+        for model_key in REQUIRED_MODEL_KEYS
+        if model_key not in ready_models
+    )
+    return {
+        "environment_ready": environment_ready,
+        "missing_models": missing_models,
+        "ready": environment_ready and not missing_models,
+    }
+
+
+def ai_ready():
+    return ai_status()["ready"]
+
+
+def ai_setup_label(status=None):
+    if status is None:
+        status = ai_status()
+    return (
+        "Download Required Models…"
+        if status["environment_ready"]
+        else "Set Up AI Environment…"
+    )
+
+
+def model_download_size(model_key):
+    model = shared_model_catalog.get_downloadable_model(model_key)
+    return sum(size for _path, size, _checksum in model.r2_files)
 
 
 def model_catalog():
@@ -244,6 +280,35 @@ def balloon_contour_analysis_property():
     )
 
 
+def image_lasso_contour_analysis_property():
+    return bpy.props.BoolProperty(
+        name="Contour",
+        description=(
+            "Use BEN2 to refine the lasso Alpha while preserving the source colors"
+        ),
+        default=False,
+    )
+
+
+def image_lasso_keep_original_property():
+    return bpy.props.BoolProperty(
+        name="Keep Original",
+        description="Keep the source Image Empty and create a cropped copy",
+        default=False,
+    )
+
+
+def image_lasso_padding_property():
+    return bpy.props.IntProperty(
+        name="Padding",
+        description="Transparent padding in pixels around the visible Alpha bounds",
+        default=0,
+        min=0,
+        soft_max=256,
+        subtype="PIXEL",
+    )
+
+
 def balloon_depth_analysis_property():
     return bpy.props.BoolProperty(
         name="Depth",
@@ -270,6 +335,9 @@ def balloon_radial_zoom_property(scale):
 
 
 class AnyImageSettings(bpy.types.PropertyGroup):
+    image_lasso_contour_analysis: image_lasso_contour_analysis_property()
+    image_lasso_keep_original: image_lasso_keep_original_property()
+    image_lasso_padding: image_lasso_padding_property()
     balloon_mode: balloon_mode_property()
     balloon_thickness: balloon_thickness_property()
     balloon_resolution: balloon_resolution_property()