refactor: move common/shaders/ to src/shaders/

Relocates shared WGSL shaders under src/ where all source code lives,
eliminating the top-level common/ directory.

- Update asset references in workspaces/main/assets.txt and workspaces/test/assets.txt
- Update docs: PROJECT_CONTEXT.md, ARCHITECTURE.md, WORKSPACE_SYSTEM.md, SHADER_REUSE_INVESTIGATION.md

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/common/shaders/sequence_uniforms.wgsl b/common/shaders/sequence_uniforms.wgsl
deleted file mode 100644
index 1aef34e..0000000
--- a/common/shaders/sequence_uniforms.wgsl
+++ /dev/null
@@ -1,12 +0,0 @@
-// Sequence v2 uniform structure for WGSL shaders
-// Matches UniformsSequenceParams in sequence.h
-
-struct UniformsSequenceParams {
-    resolution: vec2f,
-    aspect_ratio: f32,
-    time: f32,
-    beat_time: f32,
-    beat_phase: f32,
-    audio_intensity: f32,
-    noise: f32,
-};