feat: invite management API: DELETE /v1/user/invite/:id (204, cancels a pending invite) and POST /v1/user/invite/:id/renew (200, new code, expires_at = now+3d, created_at = now, resends the invitation email, old link dead)

internal/domain/invite/inviteRepositoryInterface.go

@@ -9,5 +9,6 @@ type Repository interface {
 	Create(invite Invite) (Invite, error)
 	GetAll() []Invite
 	Delete(id uint32) error
+	Renew(id uint32, hashedCode string, expiresAt time.Time, createdAt time.Time) (Invite, error)
 	AcceptWithUser(inviteID uint32, acceptedAt time.Time, newUser user.User) (user.User, error)
 }