Close Γ-W1-T7 re-review: pitch-sync cadence math, floor-model regression check, evidence-count fix, one-home comments

New cadence-collapse-band test at P=1470 shows PSOLA eliminates the corner rather than regressing it (18.52% -> 0.00%).

tests/test_preserve_low_frequency.cpp

@@ -592,8 +592,15 @@ static void reportFloorProbeMechanism() {
         int n = 0;
         const bool reach = alignmentReachable(period, lo, hi, &n);
         const double freq = static_cast<double>(sr) / period;
-        // The cadence inequality from time_stretch.h, evaluated for this row.
-        const double cadence = static_cast<double>(w) / std::fabs(rate - shift);
+        // The cadence inequality from time_stretch.h, evaluated for this row against the
+        // ACTUAL nominal jump this geometry resolves to — under g_pitchSynchronous that is
+        // periodAlignedJump's answer, not always the fixed window, so the two passes of this
+        // report (fixed-window / pitch-synchronous) must not print the same number.
+        PitchShifter jumpProbe;
+        jumpProbe.configure(w);
+        jumpProbe.setSourcePeriod(g_pitchSynchronous ? period : 0.0);
+        const double cadence =
+            static_cast<double>(jumpProbe.spliceJump()) / std::fabs(rate - shift);
         const double outPeriod = period / shift;
         std::printf("  P=%5.0f (%.1f Hz): alignable in [%.0f,%.0f]? %s%s | cadence %.0f fr vs "
                     "output period %.0f fr -> %s\n",