Print the limiter through the bake's master stage, compensating its lookahead so an engaged bake is the approved sound and a bypassed one is unchanged

tests/test_bake_window.cpp

@@ -26,6 +26,9 @@ constexpr int kRate = 48000;
 constexpr double kBpm = 120.0;   // a quarter note is 0.5 s == 24000 frames
 constexpr double kUnity = 1.0;
 constexpr double kSilence = 1e-6;
+// The derived window is a property of the voice chain, not of the master stage: every
+// measurement here reads the render with the limiter bypassed.
+constexpr bool kNoLimiter = false;
 
 // The declick pad every derived window carries. Read off the engine's own constants, so a
 // retuned ramp moves this file's expectations with it rather than against them.
@@ -97,7 +100,7 @@ BakeAudio bakeWith(const SampleData& s, double extraMs, Division hold = oneBar()
                    int velocity = 100) {
     const std::optional<BakePlan> plan = planOf(derivedProgram(s, extraMs, hold, velocity));
     if (!plan) { std::printf("FAIL: fixture window refused\n"); ++g_fail; return BakeAudio{}; }
-    return renderBake(s, *plan, kUnity);
+    return renderBake(s, *plan, kUnity, kNoLimiter);
 }
 
 std::int64_t derivedFrames(const SampleData& s, Division hold = oneBar()) {
@@ -116,7 +119,7 @@ std::int64_t freeRunningEnd(const SampleData& s, double heldSeconds) {
     p.end = EndOffset(offsetFromMs(200.0));
     const std::optional<BakePlan> plan = planOf(p);
     if (!plan) { std::printf("FAIL: fixture reference window refused\n"); ++g_fail; return -1; }
-    return lastSoundingFrame(renderBake(s, *plan, kUnity));
+    return lastSoundingFrame(renderBake(s, *plan, kUnity, kNoLimiter));
 }
 
 // The last frame of the file, which is where a hard cut shows up.
@@ -190,7 +193,7 @@ int main() {
         CHECK(plan.has_value());
         if (plan) {
             CHECK(plan->totalFrames == kFrames + kPad);
-            const BakeAudio whole = renderBake(s, *plan, kUnity);
+            const BakeAudio whole = renderBake(s, *plan, kUnity, kNoLimiter);
             // Full level across the two seconds the saturated rung used to cut, and the file
             // still ends on the declick ramp rather than on a hard edge.
             CHECK(peakAt(whole, kSlowRate * 48, kFrames) > 0.4);