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, 35 deletions

diff --git a/workspaces/main/shaders/particle_spray_compute.wgsl b/workspaces/main/shaders/particle_spray_compute.wgsl
deleted file mode 100644
index 7bdae88..0000000
--- a/workspaces/main/shaders/particle_spray_compute.wgsl
+++ /dev/null
@@ -1,35 +0,0 @@
-struct Particle {
-    pos: vec4f,
-    vel: vec4f,
-    rot: vec4f,
-    color: vec4f,
-};
-
-#include "common_uniforms"
-
-@group(0) @binding(0) var<storage, read_write> particles: array<Particle>;
-@group(0) @binding(1) var<uniform> uniforms: CommonUniforms;
-
-fn hash(p: f32) -> f32 {
-    return fract(sin(p) * 43758.5453);
-}
-
-@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];
-    if (p.pos.w <= 0.0) {
-        let r = hash(f32(i) + uniforms.time);
-        let angle = r * 6.28318;
-        p.pos = vec4f(0.0, 0.0, 0.0, 1.0);
-        p.vel = vec4f(cos(angle), sin(angle), 0.0, 0.0) * (0.5 + hash(r) * 0.5) * (1.0 + uniforms.audio_intensity * 2.0);
-        p.color = vec4f(hash(r + 0.1), hash(r + 0.2), 1.0, 1.0);
-    }
-    let new_pos = p.pos.xyz + p.vel.xyz * 0.016;
-    p.pos = vec4f(new_pos, p.pos.w - 0.01 * (1.0 + uniforms.beat_phase));
-    p.vel.y = p.vel.y - 0.01;
-    particles[i] = p;
-}