feat: add endpoints for presigned upload URLs (GET /upload/avatar, GET /upload/image); refactor: replace ProfileDto with NewProfileDto in update profile endpoint; feat: implement S3 integration for avatar management; fix: update database queries to handle new avatar upload flow; chore: add new dependencies for S3 handling (golang.org/x/time); refactor: rename UploadService to S3Service; refactor: change return type for func LocalizeS3Url(originalURL string) (*url.URL, error); feat: add custom validator for upload_id
refactor: renamed buckets; fix: corrected Host header changing behavior in minio gin endpoint; feat: function to convert local minio url to /s3/ path url with the backend host
