fix(tests): port tests to v2 API, fix FATAL_CHECK logic

- Port test_effect_base to EffectV2/SequenceV2
- Port test_demo_effects to v2 effects only
- Remove v1 lifecycle helpers from effect_test_helpers
- Fix cnn_test to not depend on cnn_v1_effect.h
- Fix test_sequence_v2_e2e node redeclaration

Known issue: test_sequence_v2_e2e still fails with bind group error
(needs source/sink texture views set)

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

1 files changed, 8 insertions, 1 deletions

diff --git a/tools/cnn_test.cc b/tools/cnn_test.cc
index 25e27e8..d88956d 100644
--- a/tools/cnn_test.cc
+++ b/tools/cnn_test.cc
@@ -5,7 +5,6 @@
 #error "cnn_test requires STRIP_ALL=OFF (tool builds only)"
 #endif
 
-#include "../cnn_v1/src/cnn_v1_effect.h"
 #include "generated/assets.h"
 #include "gpu/bind_group_builder.h"
 #include "gpu/gpu.h"
@@ -30,6 +29,14 @@
 #include <cstring>
 #include <vector>
 
+// CNN v1 structures
+struct CNNv1LayerParams {
+  int layer_index;
+  float blend_amount;
+  float _pad[2];
+};
+static_assert(sizeof(CNNv1LayerParams) == 16);
+
 // Helper to get asset string or empty string
 static const char* SafeGetAsset(AssetId id) {
   const uint8_t* data = GetAsset(id);