Fix emit replay looping and add PgUp/PgDn option stepping

client/src/audio/itemEmitRuntime.ts

@@ -311,6 +311,13 @@ export class ItemEmitRuntime {
         // Ignore stale media reload failures.
       }
     }
+    if (element.ended || (Number.isFinite(element.duration) && element.duration > 0 && element.currentTime >= element.duration - 0.01)) {
+      try {
+        element.currentTime = 0;
+      } catch {
+        // Ignore reset failures for streams/seeking-restricted media.
+      }
+    }
     void element
       .play()
       .then(() => {

client/src/items/itemPropertyEditor.ts

@@ -353,6 +353,16 @@ export function createItemPropertyEditor(deps: EditorDeps): {
       return;
     }
 
+    if (code === 'PageUp' || code === 'PageDown') {
+      const length = deps.state.itemPropertyOptionValues.length;
+      const delta = code === 'PageUp' ? -10 : 10;
+      const nextIndex = (deps.state.itemPropertyOptionIndex + delta + length * 1000) % length;
+      deps.state.itemPropertyOptionIndex = nextIndex;
+      deps.updateStatus(deps.state.itemPropertyOptionValues[nextIndex]);
+      deps.sfxUiBlip();
+      return;
+    }
+
     const control = handleListControlKey(
       code,
       key,