refactor: remove v2 versioning artifacts, establish Sequence as canonical system

Complete v1→v2 migration cleanup: rename 29 files (sequence_v2→sequence, effect_v2→effect, 14 effect files, 8 shaders, compiler, docs), update all class names and references across 54 files. Archive v1 timeline. System now uses standard naming with all versioning removed. 30/34 tests passing.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 0 insertions, 47 deletions

diff --git a/src/gpu/effect_v2.h b/src/gpu/effect_v2.h
deleted file mode 100644
index 0d4e18d..0000000
--- a/src/gpu/effect_v2.h
+++ /dev/null
@@ -1,47 +0,0 @@
-// EffectV2: Base class for v2 effects with multi-input/multi-output support
-
-#pragma once
-
-#include "gpu/gpu.h"
-#include "gpu/sequence_v2.h"
-#include <string>
-#include <vector>
-
-class NodeRegistry;
-
-class EffectV2 {
- public:
-  EffectV2(const GpuContext& ctx, const std::vector<std::string>& inputs,
-           const std::vector<std::string>& outputs);
-  virtual ~EffectV2() = default;
-
-  // Optional: Declare temporary nodes (e.g., multi-pass intermediate buffers)
-  virtual void declare_nodes(NodeRegistry& registry) {
-    (void)registry;
-  }
-
-  // Render effect (multi-input/multi-output)
-  virtual void render(WGPUCommandEncoder encoder,
-                      const UniformsSequenceParams& params,
-                      NodeRegistry& nodes) = 0;
-
-  // Resize notification
-  virtual void resize(int width, int height) {
-    width_ = width;
-    height_ = height;
-  }
-
-  const std::vector<std::string>& input_nodes() const {
-    return input_nodes_;
-  }
-  const std::vector<std::string>& output_nodes() const {
-    return output_nodes_;
-  }
-
- protected:
-  const GpuContext& ctx_;
-  std::vector<std::string> input_nodes_;
-  std::vector<std::string> output_nodes_;
-  int width_ = 1280;
-  int height_ = 720;
-};