Add tools and tests for AnyImage model management and documentation

- Implement sync_models.py for preparing and uploading ONNX artifacts.
- Create build_node.py for building and validating Blender scripts.
- Add docs.py for building and previewing documentation with Mike or MkDocs.
- Introduce model_exports.py for exporting PyTorch models to ONNX format.
- Develop pack.py for packaging the project with dependencies for different platforms.
- Add test_sync_models.py to validate sync_models functionality.
- Add test_tool_commands.py to ensure repository tools have correct command scripts.
- Initialize tools package with __init__.py.

tests/test_node_assets.py

@@ -6,7 +6,7 @@ PROJECT_ROOT = Path(__file__).resolve().parents[1]
 SOURCE_ROOT = PROJECT_ROOT / "src" / "anyimage"
 
 
-class NodeAssetTest(unittest.TestCase):
+class NodeAssetsTest(unittest.TestCase):
     def test_production_code_does_not_create_node_groups(self):
         offenders = []
         for path in SOURCE_ROOT.rglob("*.py"):
@@ -15,16 +15,26 @@ class NodeAssetTest(unittest.TestCase):
         self.assertEqual(offenders, [])
 
     def test_runtime_node_group_entries_load_assets(self):
-        material_source = (
-            SOURCE_ROOT / "operators" / "common" / "mesh_result.py"
+        object_source = (
+            SOURCE_ROOT / "common" / "object.py"
         ).read_text(encoding="utf-8")
-        plane_source = (
-            SOURCE_ROOT / "operators" / "convert_to_plane" / "nodes.py"
+        mesh_plane_source = (
+            SOURCE_ROOT / "operators" / "convert_to_plane" / "mesh_plane.py"
         ).read_text(encoding="utf-8")
-        self.assertIn("return load_asset_node_group(group_name)", material_source)
+        depth_plane_source = (
+            SOURCE_ROOT / "operators" / "convert_to_plane" / "object.py"
+        ).read_text(encoding="utf-8")
+        self.assertIn("return load_node_group(group_name)", object_source)
         self.assertIn(
-            "return load_asset_node_group(DEPTH_PLANE_NODE_GROUP_NAME)",
-            plane_source,
+            "load_node_group(MESH_PLANE_NODE_GROUP_NAME)",
+            mesh_plane_source,
+        )
+        self.assertIn(
+            "load_node_group(DEPTH_PLANE_NODE_GROUP_NAME)",
+            depth_plane_source,
+        )
+        self.assertFalse(
+            (SOURCE_ROOT / "operators" / "convert_to_plane" / "nodes.py").exists()
         )