feat(3d): Implement basic OBJ mesh asset pipeline

Added support for loading and rendering OBJ meshes.
- Updated asset_packer to parse .obj files into a binary format.
- Added MeshAsset and GetMeshAsset helper to asset_manager.
- Extended Object3D with mesh_asset_id and ObjectType::MESH.
- Implemented mesh rasterization pipeline in Renderer3D.
- Added a sample cube mesh and verified in test_3d_render.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gpu/effects/shaders.cc b/src/gpu/effects/shaders.cc
index 4fc8108..0646f92 100644
--- a/src/gpu/effects/shaders.cc
+++ b/src/gpu/effects/shaders.cc
@@ -40,6 +40,7 @@ void InitShaderComposer() {
                      AssetId::ASSET_SHADER_RENDER_SCENE_QUERY_LINEAR);
   register_if_exists("render/lighting_utils",
                      AssetId::ASSET_SHADER_RENDER_LIGHTING_UTILS);
+  register_if_exists("render/mesh", AssetId::ASSET_SHADER_MESH);
 
   register_if_exists("sdf_primitives", AssetId::ASSET_SHADER_SDF_PRIMITIVES);