feat: 添加 ComfyProjector Blender 插件初始版本

- 新增插件核心文件 __init__.py，包含插件信息和注册逻辑
- 添加工具模块 utils.py，实现 AOV 烘焙和网格视图生成功能
- 包含资产文件：Materials.blend 和 geonodesuvpack.blend
- 添加 .gitignore 文件以忽略 Python 缓存目录
- 插件提供 3D 视图面板，包含两个操作按钮

__init__.py

@@ -0,0 +1,34 @@
+bl_info = {
+    "name" : "ComfyProjector",
+    "author" : "Blender Procedural", 
+    "description" : "Projector for ComfyUI",
+    "blender" : (5, 0, 0),
+    "version" : (1, 0, 0),
+    "location" : "",
+    "warning" : "",
+    "doc_url": "", 
+    "tracker_url": "", 
+    "category" : "3D View" 
+}
+
+import bpy  # noqa: E402
+from .utils import classes  # noqa: E402
+
+
+def register():
+    for cls in classes:
+        bpy.utils.register_class(cls)
+    bpy.types.Scene.sna_activeobject = bpy.props.PointerProperty(type=bpy.types.Object)
+    bpy.types.Scene.sna_bakecam = bpy.props.PointerProperty(type=bpy.types.Object)
+    bpy.types.Scene.sna_activeobject_name = bpy.props.StringProperty()
+
+
+def unregister():
+    if hasattr(bpy.types.Scene, "sna_activeobject_name"):
+        del bpy.types.Scene.sna_activeobject_name
+    if hasattr(bpy.types.Scene, "sna_bakecam"):
+        del bpy.types.Scene.sna_bakecam
+    if hasattr(bpy.types.Scene, "sna_activeobject"):
+        del bpy.types.Scene.sna_activeobject
+    for cls in reversed(classes):
+        bpy.utils.unregister_class(cls)