feat(renderer): add deferred rendering pipeline (G-Buffer + Lighting pass)
Implements deferred_pipeline.rs with pipeline creation functions:
gbuffer_camera_bind_group_layout (dynamic offset), create_gbuffer_pipeline
(MeshVertex input, 4 color targets), lighting_gbuffer_bind_group_layout
(non-filterable position + filterable rest + NonFiltering sampler),
lighting_lights_bind_group_layout, lighting_shadow_bind_group_layout, and
create_lighting_pipeline (FullscreenVertex, no depth stencil).
All wgpu 28.0 fields (immediate_size, multiview_mask, cache) included.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
tolelom
a9b263bf57