refactor(effects): co-locate effect WGSL shaders with their .h/.cc in src/effects/

Move 13 effect-specific shaders from workspaces/main/shaders/ to src/effects/
so each effect's .h, .cc, and .wgsl are together. Update assets.txt paths in
both main and test workspaces. Update EFFECT_WORKFLOW.md to reflect new location.
Shared/reusable snippets remain in src/shaders/.

handoff(Gemini): shaders moved; src/effects/ now has .h, .cc, and .wgsl per effect.

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

1 files changed, 0 insertions, 31 deletions

diff --git a/workspaces/main/shaders/particle_compute.wgsl b/workspaces/main/shaders/particle_compute.wgsl
deleted file mode 100644
index 2960cc4..0000000
--- a/workspaces/main/shaders/particle_compute.wgsl
+++ /dev/null
@@ -1,31 +0,0 @@
-// Particle simulation (compute shader) - V2
-struct Particle {
-    pos: vec4f,
-    vel: vec4f,
-    rot: vec4f,
-    color: vec4f,
-};
-
-#include "sequence_uniforms"
-
-@group(0) @binding(0) var<storage, read_write> particles: array<Particle>;
-@group(0) @binding(1) var<uniform> uniforms: UniformsSequenceParams;
-
-@compute @workgroup_size(64)
-fn main(@builtin(global_invocation_id) id: vec3u) {
-    let i = id.x;
-    if (i >= arrayLength(&particles)) {
-        return;
-    }
-    var p = particles[i];
-    let new_pos = p.pos.xyz + p.vel.xyz * 0.016;
-    p.pos = vec4f(new_pos, p.pos.w);
-    p.vel.y = p.vel.y - 0.01 * (1.0 + uniforms.audio_intensity * 5.0);
-    p.rot.x = p.rot.x + p.rot.y * 0.016;
-    if (p.pos.y < -1.5) {
-        p.pos.y = 1.5;
-        p.pos.x = (f32(i % 100u) / 50.0) - 1.0 + (uniforms.audio_intensity * 0.5);
-        p.vel.y = 0.0;
-    }
-    particles[i] = p;
-}