fix: clear frontend lint warnings

vite-frontend/src/pages/dashboard/use-dashboard-data.ts

@@ -360,11 +360,7 @@ export const useDashboardData = (): DashboardDataState => {
           if (updateTime > storedTime) {
             setIsAnnouncementModalOpen(true);
           }
-        } catch (err) {
-          console.warn(
-            "Failed to read localStorage for announcement state",
-            err,
-          );
+        } catch {
           setIsAnnouncementModalOpen(true);
         }
       } else {
@@ -385,8 +381,8 @@ export const useDashboardData = (): DashboardDataState => {
           "flvx_announcement_seen_time",
           announcement.update_time.toString(),
         );
-      } catch (err) {
-        console.warn("Failed to set localStorage for announcement state", err);
+      } catch {
+        // Ignore localStorage write failures and keep the modal dismissed.
       }
     }
   }, [announcement]);

vite-frontend/src/pages/forward.tsx

@@ -2600,7 +2600,7 @@ export default function ForwardPage() {
         try {
           document.execCommand("copy");
           toast.success(`已复制${label}`);
-        } catch (err) {
+        } catch {
           toast.error("复制失败");
         }
         document.body.removeChild(textArea);

vite-frontend/src/themes/loader.ts

@@ -10,7 +10,6 @@
  */
 
 import { registerTheme } from "./registry";
-
 // ── Built-in themes ──────────────────────────────────────────────────────────
 import defaultTheme from "./default";
 import cyberpunkTheme from "./example-cyberpunk";

vite-frontend/src/themes/registry.ts

@@ -117,8 +117,6 @@ export function activateTheme(id: string): void {
   const pkg = installed.get(id);
 
   if (!pkg) {
-    console.warn(`[FLVX themes] Theme "${id}" is not registered.`);
-
     return;
   }