feat: Add VRM Blender addon with complete import/export functionality

- Add core VRM addon infrastructure with manifest and registration
- Add common utilities module with file system, logging, and conversion helpers
- Add human bone mapper with support for multiple rigging standards (Mixamo, MMD, Unreal, Rigify, etc.)
- Add VRM 0.x and 1.x format support with property groups and handlers
- Add editor UI panels for VRM metadata, spring bones, and MToon materials
- Add exporter with glTF2 extension support for VRM format serialization
- Add importer with scene reconstruction and armature generation
- Add MToon shader support with auto-setup and material migration
- Add spring bone physics simulation with constraint handling
- Add node constraint editor for advanced rigging control
- Add comprehensive validation and error handling with user dialogs
- Add scene watcher for real-time property synchronization
- Add workspace management and preference system
- Include Python cache files and Blender manifest configuration
- This is the initial commit establishing the complete VRM addon ecosystem for Blender

common/ops/export_scene.py

@@ -0,0 +1,67 @@
+# This code is auto generated.
+# To regenerate, run the `uv run tools/property_typing.py` command.
+
+from collections.abc import Mapping, Sequence
+from typing import Optional, Union
+
+import bpy
+
+
+# This code is auto generated.
+# To regenerate, run the `uv run tools/property_typing.py` command.
+def vrm(
+    execution_context: str = "EXEC_DEFAULT",
+    /,
+    *,
+    filter_glob: str = "*.vrm",
+    use_addon_preferences: bool = False,
+    export_invisibles: bool = False,
+    export_only_selections: bool = False,
+    enable_advanced_preferences: bool = False,
+    export_all_influences: bool = False,
+    export_lights: bool = False,
+    export_gltf_animations: bool = False,
+    export_try_sparse_sk: bool = False,
+    errors: Optional[Sequence[Mapping[str, Union[str, int, float, bool]]]] = None,
+    armature_object_name: str = "",
+    ignore_warning: bool = False,
+    filepath: str = "",
+    check_existing: bool = True,
+) -> set[str]:
+    return bpy.ops.export_scene.vrm(  # type: ignore[attr-defined, no-any-return]
+        execution_context,
+        filter_glob=filter_glob,
+        use_addon_preferences=use_addon_preferences,
+        export_invisibles=export_invisibles,
+        export_only_selections=export_only_selections,
+        enable_advanced_preferences=enable_advanced_preferences,
+        export_all_influences=export_all_influences,
+        export_lights=export_lights,
+        export_gltf_animations=export_gltf_animations,
+        export_try_sparse_sk=export_try_sparse_sk,
+        errors=errors if errors is not None else [],
+        armature_object_name=armature_object_name,
+        ignore_warning=ignore_warning,
+        filepath=filepath,
+        check_existing=check_existing,
+    )
+
+
+# This code is auto generated.
+# To regenerate, run the `uv run tools/property_typing.py` command.
+def vrma(
+    execution_context: str = "EXEC_DEFAULT",
+    /,
+    *,
+    filter_glob: str = "*.vrma",
+    armature_object_name: str = "",
+    filepath: str = "",
+    check_existing: bool = True,
+) -> set[str]:
+    return bpy.ops.export_scene.vrma(  # type: ignore[attr-defined, no-any-return]
+        execution_context,
+        filter_glob=filter_glob,
+        armature_object_name=armature_object_name,
+        filepath=filepath,
+        check_existing=check_existing,
+    )