feat: add item image popout for non-GM players

Author: martin-papy

scripts/item-image-popout.js

@@ -0,0 +1,30 @@
+Hooks.on('renderItemSheet', (sheet, html, data) => {
+  if (game.user.isGM) return;
+
+  // html is jQuery in v12, HTMLElement in v13
+  const element = html instanceof jQuery ? html[0] : html;
+  const img = element.querySelector('img[data-edit="img"]');
+  if (!img) return;
+
+  // Remove data-edit so Foundry's file picker doesn't intercept clicks
+  img.removeAttribute('data-edit');
+  img.style.cursor = 'pointer';
+
+  img.addEventListener('click', (event) => {
+    event.preventDefault();
+    event.stopPropagation();
+
+    const src = img.getAttribute('src');
+    const title = sheet.object.name;
+
+    // v13 uses ApplicationV2-style options, v12 uses positional args
+    if (foundry.applications?.apps?.ImagePopout) {
+      new foundry.applications.apps.ImagePopout({
+        src: src,
+        window: { title: title }
+      }).render(true);
+    } else {
+      new ImagePopout(src, { title: title }).render(true);
+    }
+  });
+});