(Fix) Add foreign keys everywhere

[Roardom]

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[what-the-diff]

PR Summary

• New Database Migration file added
  We've added a file named 2026_01_07_073136_add_foreign_keys_everywhere.php that updates our database structure.
• Foreign Key Constraints Introduced
  It's just a way of making sure that things that are linked together in our data have their relationships respected. Here are the updates:
  • Tables for images and URLs in applications
  • Automatic torrent freeleeches categories, types, and resolutions
  • Donations' associated users
  • Forum group permissions
  • Likes on forum posts
  • Playlist torrents
  • Reports on requested features
  • Request bounty and claim tables
  • Subtitles' associated languages
  • Attachments on support tickets
  • Ticket categories and priority levels
  • Torrents' distributors and regions
  • User groups, chatrooms, and statuses
• Removed Unnecessary Indexes
  We've removed some of the indexes that used to be on these fields, now that those same fields have these foreign key constraints. This avoids unnecessary redundancy.