• Removed requirements to implement fsutil.FS for fsutil.WorkingDirFS, fsutil.MkdirFS, fsutil.WritableFS, fsutil.RemoveFS
• Fixed RouteParams were emptied if the matched route doesn't have parameters but its parents do.
• Fixed error trace added twice as an attribute in slog when logging *errors.Error having a reason of type *errors.Error. Only the correct trace is printed now.
• Validation: the request context is now automatically attached to the DB in the validation middleware.
• Extra in request and validation are now using typed keys instead of strings. You can now (and you are encouraged to) use comparable structures as keys.
• ExtraJWTClaims key has been moved to the auth package.