fix file size limit

apps/frontend/lib/api.ts

@@ -1734,6 +1734,7 @@ export interface AppRelease {
   platform: AppReleasePlatform;
   version: string;
   versionCode: number;
+  variant: string;
   fileName: string;
   storageKey: string;
   fileSize: string;
@@ -1747,6 +1748,7 @@ export interface AppRelease {
 export interface AppUpdateCheckResponse {
   updateAvailable: boolean;
   latest?: AppRelease;
+  variants?: AppRelease[];
 }
 
 export async function fetchPublicAppReleases(platform?: AppReleasePlatform) {
@@ -1768,9 +1770,11 @@ export async function checkAppUpdate(platform: AppReleasePlatform, versionCode:
   );
 }
 
-export function buildAppReleaseDownloadUrl(platform: AppReleasePlatform, releaseId?: string) {
+export function buildAppReleaseDownloadUrl(platform: AppReleasePlatform, releaseId?: string, variant?: string) {
   const slug = platform.toLowerCase();
-  return releaseId ? `/downloads/${slug}/${releaseId}` : `/downloads/${slug}`;
+  if (releaseId) return `/downloads/${slug}/${releaseId}`;
+  if (variant) return `/downloads/${slug}?variant=${encodeURIComponent(variant)}`;
+  return `/downloads/${slug}`;
 }
 
 export async function fetchAdminAppReleases(token: string, platform?: AppReleasePlatform) {
@@ -1784,6 +1788,7 @@ export async function uploadAdminAppRelease(
     platform: AppReleasePlatform;
     version: string;
     versionCode: number;
+    variant?: string;
     releaseNotes?: string;
     file: File;
   },
@@ -1793,6 +1798,9 @@ export async function uploadAdminAppRelease(
   formData.append('platform', payload.platform);
   formData.append('version', payload.version.trim());
   formData.append('versionCode', String(payload.versionCode));
+  if (payload.variant?.trim()) {
+    formData.append('variant', payload.variant.trim());
+  }
   if (payload.releaseNotes?.trim()) {
     formData.append('releaseNotes', payload.releaseNotes.trim());
   }