Add reported-issues, Goodreads sync & notifs

Introduce user-reported-issues and Goodreads shelf sync features and wire them into notifications. Adds Prisma migrations and schema changes (ReportedIssue, GoodreadsShelf, GoodreadsBookMapping), API endpoints for reporting (POST /audiobooks/[asin]/report-issue) and admin management (list, resolve/dismiss, replace), and an admin UI section to view/dismiss/replace reported issues. Adds a new notification event (issue_reported) with updates to notification schemas, docs and provider handling, plus a notification-events constants file. Refactors request creation to use createRequestForUser service, adds a Goodreads sync processor/service/hooks/UI modals, a scrape-resilience util, and related tests and minor integration updates.

src/lib/hooks/useAudiobooks.ts

@@ -26,6 +26,7 @@ export interface Audiobook {
   requestStatus?: string | null;  // Status of request (if any)
   requestId?: string | null;  // ID of request (if any)
   requestedByUsername?: string | null;  // Username who requested (only if not current user)
+  hasReportedIssue?: boolean;  // True if an open issue exists for this audiobook
 }
 
 export function useAudiobooks(type: 'popular' | 'new-releases', limit: number = 20, page: number = 1) {