playlist funcional. inserindo loops de uma mesma faixa de pattern

assets/js/creations/pattern/pattern_audio.js

@@ -586,7 +586,11 @@ export function startSongPatternPlaybackOnTransport() {
 
       for (const hit of activePatternHits) {
         const patt = track.patterns?.[hit.patternIndex];
-        if (!patt) continue;
+        if (!patt?.steps) continue;
+
+        // 👇 ADD
+        const pattLen = patt.steps.length;
+        const stepInPattern = pattLen > 0 ? (hit.localStep % pattLen) : hit.localStep;
 
         // ✅ 1) PLUGIN com piano roll (notes)
         if (
@@ -626,7 +630,7 @@ export function startSongPatternPlaybackOnTransport() {
         // ✅ 2) Lógica antiga de STEP (sampler / plugin sem notes)
         if (!patt.steps) continue;
 
-        if (patt.steps[hit.localStep]) {
+        if (patt.steps[stepInPattern]) {
           if (track.type === "sampler" && track.player) {
             track.player.restart = true;
             try { track.player.start(time); } catch {}