feat(calendar): add Sonarr/Radarr calendar integration

[hqvisionsadmin]

Adds calendar view integration with Sonarr and Radarr APIs to manage upcoming media releases. Includes:

• Calendar API endpoint (/api/v1/calendar) with filtering and pagination
• Calendar UI component with multiple view types (day, week, month, forecast)
• Filters for airing today, this week, upcoming, downloaded, missing, processing, etc.
• Auto-refresh based on download-sync job schedule
• If a download fails, ability to block the release, or block and try again
• By default everyone can see Calendar, but there are new permissions to see extended file details and the ability to delete or blocklist and retry

Screenshot (if UI-relate

d)

See issue #2509

To-Dos

• [x] Successful build yarn build
• [x] Translation keys yarn i18n:extract
• [x] Database migration (if required)

Issues Fixed or Closed

• Draft implementation for #2509