История коммитов

Migrates ?act=top_users to /downloads/top-users/ via a dedicated controller,
use case, and repository method. Two-query pagination strategy avoids MySQL
ONLY_FULL_GROUP_BY violation from grouping users by PK with SELECT *.

- New route GET /downloads/search handled by SearchController
- SearchFilesUseCase sanitizes query and delegates to repository
- DownloadFileRepository::searchFiles() with LIKE escaping
- Search form uses GET method so query is preserved in the URL
- 301 redirect from legacy ?act=search to /downloads/search/
- All Eloquent queries updated to use ::query() for IDE autocompletion

Move EnsureForumAccessUseCase from ~39 controllers into ForumAccessMiddleware
applied at the route group level, eliminating repetitive try-catch boilerplate.
UploadFileController is excluded from the group to preserve JSON error responses.