refactor: Store const GpuContext& in Effect base class

- Changed Effect to store ctx_ reference instead of device_/queue_/format_
- Updated all 19 effect implementations to access ctx_.device/queue/format
- Simplified Effect constructor: ctx_(ctx) vs device_(ctx.device), queue_(ctx.queue), format_(ctx.format)
- All 28 tests pass, all targets build successfully

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gpu/effects/flash_cube_effect.cc b/src/gpu/effects/flash_cube_effect.cc
index 4f58562..8c97d5d 100644
--- a/src/gpu/effects/flash_cube_effect.cc
+++ b/src/gpu/effects/flash_cube_effect.cc
@@ -22,11 +22,11 @@ void FlashCubeEffect::init(MainSequence* demo) {
   (void)demo;
   WGPUTextureFormat format = demo->gpu_ctx.format;
 
-  renderer_.init(device_, queue_, format_);
+  renderer_.init(ctx_.device, ctx_.queue, ctx_.format);
   renderer_.resize(width_, height_);
 
   // Texture Manager
-  texture_manager_.init(device_, queue_);
+  texture_manager_.init(ctx_.device, ctx_.queue);
 
   // Load Perlin noise texture
   TextureAsset noise_tex = GetTextureAsset(AssetId::ASSET_NOISE_TEX);