fix: support authenticated video citation playback

mobile-uni/src/services/api.ts

@@ -38,6 +38,13 @@ const normalizeUrl = (url: string) => `${currentApiBase()}${url.startsWith('/')
 
 export const apiUrl = normalizeUrl;
 
+export const apiMediaUrl = (url: string) => {
+  const normalized = normalizeUrl(url);
+  if (/^https?:\/\//i.test(normalized) || typeof window === 'undefined') return normalized;
+  const origin = window.location?.origin;
+  return /^https?:\/\//i.test(origin || '') ? new URL(normalized, `${origin}/`).toString() : normalized;
+};
+
 export const authHeaders = (json = true, includeAuth = true) => {
   const auth = getAuth();
   return {

mobile-uni/src/services/knowledge.ts

@@ -9,7 +9,7 @@ import type {
   SummaryCardResponse,
   KnowledgeCitationDetail
 } from '@/types/api';
-import { apiRequest, apiUrl, authHeaders, readTextPayload } from './api';
+import { apiMediaUrl, apiRequest, apiUrl, authHeaders, readTextPayload } from './api';
 import { getSelectedPosition } from './auth';
 import { fileSelectionFailure } from '../utils/file-selection';
 import { withPlatformFileSelection } from './file-selection-lifecycle';
@@ -264,7 +264,7 @@ export const loadKnowledgeCitationMediaUrl = async (detailRef: string) => {
     clearAuthOnUnauthorized: false
   });
   if (!response.url?.startsWith('/api/knowledge/resources/')) throw new Error('视频地址无效');
-  return apiUrl(response.url);
+  return apiMediaUrl(response.url);
 };
 
 const normalizeUnifiedResponse = (response: UnifiedKnowledgeResponse): KnowledgeSearchResponse => {