feat: update download page title to use display name

- Add Project interface with name and displayName
- Fetch projects via SWR
- Add getProjectDisplayName helper function
- Use display name in the download page title

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

app/download/page.tsx

@@ -2,9 +2,15 @@
 'use client';
 
 import { useState } from 'react';
+import useSWR from 'swr';
 import SearchForm from './SearchForm';
 import ApkList from './ApkList';
 
+interface Project {
+  name: string;
+  displayName: string;
+}
+
 export default function DownloadPage() {
   const [searchParams, setSearchParams] = useState({
     project: '',
@@ -12,10 +18,17 @@ export default function DownloadPage() {
     commitId: '',
   });
 
+  const { data: projects } = useSWR<Project[]>('/api/projects');
+
   const handleSearch = (project: string, version: string, commitId: string) => {
     setSearchParams({ project, version, commitId });
   };
 
+  const getProjectDisplayName = (projectName: string): string => {
+    const project = projects?.find(p => p.name === projectName);
+    return project?.displayName || projectName;
+  };
+
   return (
     <div className="min-h-screen bg-gray-50">
       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
@@ -33,7 +46,7 @@ export default function DownloadPage() {
             {searchParams.project && searchParams.version ? (
               <>
                 <h2 className="text-xl font-semibold text-gray-800 mb-4">
-                  {searchParams.project} - {searchParams.version.replace('_', '.')}
+                  {getProjectDisplayName(searchParams.project)} - {searchParams.version.replace('_', '.')}
                   {searchParams.commitId && ` (commit: ${searchParams.commitId})`}
                 </h2>
                 <ApkList