feat: native detail background (blurred movie.img fanart) + use m.img in torrent modal

plugin.js

@@ -441,6 +441,15 @@
                 '</div>';
             html.appendChild(start);
 
+            // Native Lampa detail background: blurred fanart behind the page.
+            // Lampa uses cardImgBackgroundBlur(object.movie) -> poster||img.
+            // We use m.img (movie.* horizontal) when present, else poster, so the
+            // detail background matches the torrent-modal thumbnail.
+            var bgSrc = resolve(m.img || m.poster || m.cover);
+            if (bgSrc && Lampa.Background && Lampa.Background.immediately) {
+                Lampa.Background.immediately(bgSrc);
+            }
+
             // Details line: year ● genre1, genre2
             var info = [];
             if (m.year) info.push(esc(String(m.year)));
@@ -496,7 +505,7 @@
             title: m.title,
             poster: resolve(m.poster || m.cover)
         };
-        var movie = Object.assign({}, m, { img: resolve(m.poster || m.cover) });
+        var movie = Object.assign({}, m, { img: resolve(m.img || m.poster || m.cover) });
         Lampa.Torrent.start(element, movie);
     }