Preserve queue recovery and desktop drop integrity

Resolve floating drops through Electron native paths, expand folders recursively, correlate terminal outcomes by job ID until final queue persistence succeeds, and keep current queue badges, telemetry, cancellation behavior, and copy-link wording synchronized.

renderer/drop-target.html

@@ -79,12 +79,20 @@
       e.preventDefault();
       e.stopPropagation();
       target.classList.remove('drag-over');
-      const paths = [];
+      const files = [];
       for (const file of e.dataTransfer.files) {
-        if (file.path) paths.push(file.path);
+        let filePath = '';
+        try { filePath = window.dropTargetApi.getPathForFile(file); } catch {}
+        if (!filePath) continue;
+        files.push({
+          path: filePath,
+          name: file.name || '',
+          size: Number.isFinite(file.size) ? file.size : 0,
+          isDirectory: file.type === '' && file.size === 0
+        });
       }
-      if (paths.length > 0) {
-        window.dropTargetApi.sendFiles(paths);
+      if (files.length > 0) {
+        window.dropTargetApi.sendFiles(files);
       }
     });
   </script>