diff --git a/frontend/src/pages/admin/EventDetailsPage.tsx b/frontend/src/pages/admin/EventDetailsPage.tsx
index b6886e5f..aeade798 100644
--- a/frontend/src/pages/admin/EventDetailsPage.tsx
+++ b/frontend/src/pages/admin/EventDetailsPage.tsx
@@ -92,7 +92,7 @@ const FolderTreeNode: React.FC<{
     staleTime: 30_000
   });
 
-  const dirs: ExternalEntry[] = (data?.entries || []).filter((e: ExternalEntry) => e.type === 'dir');
+  const dirs = (data?.entries || []).filter(e => e.type === 'dir');
   const showEmpty = isExpanded && !isLoading && !isError && dirs.length === 0;
   const indentStyle = { paddingLeft: depth * 16 + 4 };
   const childIndentStyle = { paddingLeft: (depth + 1) * 16 + 4 };
@@ -158,7 +158,7 @@ const FolderTreeNode: React.FC<{
               {t('events.externalFolderEmpty', 'No subfolders')}
             </div>
           )}
-          {dirs.map((d) => {
+          {dirs.map(d => {
             const childPath = path ? `${path}/${d.name}` : d.name;
             return (
               <FolderTreeNode
diff --git a/frontend/src/services/externalMedia.service.ts b/frontend/src/services/externalMedia.service.ts
index 734a1578..6a3ae608 100644
--- a/frontend/src/services/externalMedia.service.ts
+++ b/frontend/src/services/externalMedia.service.ts
@@ -1,22 +1,50 @@
 import { api } from '../config/api';
 
-export interface ExternalEntry { name: string; type: 'dir' | 'file'; size?: number; mtime?: string }
+export interface ExternalEntry {
+  name: string;
+  type: 'dir' | 'file';
+  size?: number;
+  mtime?: string;
+}
+
+export interface ExternalMediaListResponse {
+  path: string;
+  entries: ExternalEntry[];
+  canNavigateUp: boolean;
+}
+
+export interface ExternalMediaImportOptions {
+  recursive?: boolean;
+  map?: { individual?: string; collages?: string };
+}
+
+export interface ExternalMediaImportResult {
+  imported: number;
+  skipped: number;
+  thumbnailsQueued: number;
+}
 
 export const externalMediaService = {
-  async list(pathRel: string = ''): Promise<{ path: string; entries: ExternalEntry[]; canNavigateUp: boolean }> {
+  async list(pathRel: string = ''): Promise<ExternalMediaListResponse> {
     const params = new URLSearchParams();
     if (pathRel) params.set('path', pathRel);
-    const res = await api.get(`/admin/external-media/list?${params.toString()}`);
+    const res = await api.get<ExternalMediaListResponse>(`/admin/external-media/list?${params.toString()}`);
     return res.data;
   },
 
-  async importEvent(eventId: number, externalPath: string, options?: { recursive?: boolean; map?: { individual?: string; collages?: string } }): Promise<{ imported: number; skipped: number; thumbnailsQueued: number }> {
-    const res = await api.post(`/admin/external-media/events/${eventId}/import-external`, {
-      external_path: externalPath,
-      recursive: options?.recursive ?? true,
-      map: options?.map
-    });
+  async importEvent(
+    eventId: number,
+    externalPath: string,
+    options?: ExternalMediaImportOptions
+  ): Promise<ExternalMediaImportResult> {
+    const res = await api.post<ExternalMediaImportResult>(
+      `/admin/external-media/events/${eventId}/import-external`,
+      {
+        external_path: externalPath,
+        recursive: options?.recursive ?? true,
+        map: options?.map
+      }
+    );
     return res.data;
   }
-}
-
+};