feat: remove iTunes release year refresh API endpoint and UI from admin page

app/api/admin/refresh-years/route.ts

@@ -1,78 +0,0 @@
-
-import { NextResponse } from 'next/server';
-import { PrismaClient } from '@prisma/client';
-import { requireAdminAuth } from '@/lib/auth';
-import { getReleaseYearFromItunes } from '@/lib/itunes';
-
-const prisma = new PrismaClient();
-
-// Helper to delay execution to avoid rate limits
-const sleep = (ms: number) => new Promise(resolve => setTimeout(resolve, ms));
-
-export async function POST(request: Request) {
-    // Check authentication
-    const authError = await requireAdminAuth(request as any);
-    if (authError) return authError;
-
-    try {
-        const { offset = 0, limit = 20 } = await request.json();
-
-        // Fetch batch of songs
-        const songs = await prisma.song.findMany({
-            select: { id: true, title: true, artist: true },
-            orderBy: { id: 'asc' },
-            skip: offset,
-            take: limit
-        });
-
-        const totalSongs = await prisma.song.count();
-
-        console.log(`Processing batch: offset=${offset}, limit=${limit}, found=${songs.length}`);
-
-        let updatedCount = 0;
-        let failedCount = 0;
-        let skippedCount = 0;
-        const results = [];
-
-        for (const song of songs) {
-            try {
-                // Rate limiting: wait 2000ms between requests to be safe (iTunes can be strict)
-                await sleep(2000);
-
-                const year = await getReleaseYearFromItunes(song.artist, song.title);
-
-                if (year) {
-                    await prisma.song.update({
-                        where: { id: song.id },
-                        data: { releaseYear: year }
-                    });
-                    updatedCount++;
-                    results.push({ id: song.id, title: song.title, artist: song.artist, year, status: 'updated' });
-                } else {
-                    skippedCount++;
-                    results.push({ id: song.id, title: song.title, artist: song.artist, status: 'not_found' });
-                }
-            } catch (error) {
-                console.error(`Failed to update year for ${song.title} - ${song.artist}:`, error);
-                failedCount++;
-                results.push({ id: song.id, title: song.title, artist: song.artist, status: 'error' });
-            }
-        }
-
-        return NextResponse.json({
-            success: true,
-            processed: songs.length,
-            total: totalSongs,
-            hasMore: offset + songs.length < totalSongs,
-            nextOffset: offset + songs.length,
-            updated: updatedCount,
-            failed: failedCount,
-            skipped: skippedCount,
-            results
-        });
-
-    } catch (error) {
-        console.error('Error refreshing release years:', error);
-        return NextResponse.json({ error: 'Internal Server Error' }, { status: 500 });
-    }
-}