Fix some script bugs

src/dusk/script/module/asset/moduleassetbatch.c

@@ -253,6 +253,7 @@ moduleBaseFunction(moduleAssetBatchLock) {
 moduleBaseFunction(moduleAssetBatchUnlock) {
   jsassetbatch_t *b = moduleAssetBatchSelf(callInfo);
   if(!b || !b->batch) return jerry_undefined();
+  assetBatchUnlock(b->batch);
   assetBatchDispose(b->batch);
   memoryFree(b->batch);
   b->batch = NULL;

src/dusk/script/script.c

@@ -128,6 +128,12 @@ errorret_t scriptDispose(void) {
     "All script assets should be disposed by now."
   );
 
+  // Script modules are now freed, so any JS objects that were only reachable
+  // through module-scope globals (texEntry, renderable._tex, etc.) are now
+  // orphaned. A GC pass here fires their finalizers and releases asset entry
+  // locks before assetDispose() checks ref counts.
+  jerry_heap_gc(JERRY_GC_PRESSURE_HIGH);
+
   moduleListDispose();
   jerry_cleanup();
   SCRIPT.initialized = false;