Add Lidarr/Readarr backend support

- Add MUSIC and BOOK to MediaType enum
- Add permission flags for music/book requests
- Create Lidarr API adapter (artist/album search, add, remove)
- Create Readarr API adapter (book/author search, add, remove)
- Add Lidarr/Readarr settings interfaces and routes
- Add music and book API routes for search/detail
- Register all new routes in main router and settings router

server/routes/index.ts

@@ -30,12 +30,14 @@ import { isPerson } from '@server/utils/typeHelpers';
 import { Router } from 'express';
 import authRoutes from './auth';
 import blocklistRoutes from './blocklist';
+import bookRoutes from './book';
 import collectionRoutes from './collection';
 import discoverRoutes, { createTmdbWithRegionLanguage } from './discover';
 import issueRoutes from './issue';
 import issueCommentRoutes from './issueComment';
 import mediaRoutes from './media';
 import movieRoutes from './movie';
+import musicRoutes from './music';
 import personRoutes from './person';
 import requestRoutes from './request';
 import searchRoutes from './search';
@@ -165,6 +167,8 @@ router.use(
 );
 router.use('/movie', isAuthenticated(), movieRoutes);
 router.use('/tv', isAuthenticated(), tvRoutes);
+router.use('/music', isAuthenticated(), musicRoutes);
+router.use('/book', isAuthenticated(), bookRoutes);
 router.use('/media', isAuthenticated(), mediaRoutes);
 router.use('/person', isAuthenticated(), personRoutes);
 router.use('/collection', isAuthenticated(), collectionRoutes);