Add visual online/offline status dot indicator for Rapidgator links

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/renderer/App.tsx

@@ -3029,7 +3029,10 @@ const PackageCard = memo(function PackageCard({ pkg, items, packageSpeed, isFirs
       </div>
       {!collapsed && items.map((item) => (
         <div key={item.id} className={`item-row${selectedIds.has(item.id) ? " item-selected" : ""}`} onClick={(e) => { e.stopPropagation(); onSelect(item.id, e.ctrlKey); }} onMouseDown={(e) => { e.stopPropagation(); onSelectMouseDown(item.id, e); }} onMouseEnter={() => onSelectMouseEnter(item.id)} onContextMenu={(e) => { e.preventDefault(); e.stopPropagation(); onContextMenu(pkg.id, item.id, e.clientX, e.clientY); }}>
-          <span className="pkg-col pkg-col-name item-indent" title={item.fileName}>{item.fileName}</span>
+          <span className="pkg-col pkg-col-name item-indent" title={item.fileName}>
+            {item.onlineStatus && <span className={`link-status-dot ${item.onlineStatus}`} title={item.onlineStatus === "online" ? "Online" : item.onlineStatus === "offline" ? "Offline" : "Wird geprüft..."} />}
+            {item.fileName}
+          </span>
           <span className="pkg-col pkg-col-size">{(() => {
             const total = item.totalBytes || item.downloadedBytes || 0;
             const dl = item.downloadedBytes || 0;

src/renderer/styles.css

@@ -1315,6 +1315,33 @@ td {
   padding-left: 32px;
 }
 
+.link-status-dot {
+  display: inline-block;
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  margin-right: 6px;
+  flex-shrink: 0;
+  vertical-align: middle;
+}
+.link-status-dot.online {
+  background: #22c55e;
+  box-shadow: 0 0 4px #22c55e80;
+}
+.link-status-dot.offline {
+  background: #ef4444;
+  box-shadow: 0 0 4px #ef444480;
+}
+.link-status-dot.checking {
+  background: #f59e0b;
+  box-shadow: 0 0 4px #f59e0b80;
+  animation: pulse-dot 1s ease-in-out infinite;
+}
+@keyframes pulse-dot {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.4; }
+}
+
 .item-remove {
   background: none;
   border: none;