feat: add folloers/following list

internal/service/social_graph_service.go

@@ -310,6 +310,25 @@ func (s *SocialGraphService) Counts(ctx context.Context, userID string) (followe
 	return followers, following, nil
 }
 
+// Followers / Following resolve the handle and return one page of the
+// profile's accepted followers (or followings), optionally filtered by a
+// name/handle search `q`, plus the total matching count for pagination.
+func (s *SocialGraphService) Followers(ctx context.Context, handle, q string, limit, offset int) ([]model.UserSummary, int, error) {
+	u, err := s.users.FindByHandle(ctx, handle)
+	if err != nil {
+		return nil, 0, err
+	}
+	return s.follows.ListFollowers(ctx, u.ID, q, limit, offset)
+}
+
+func (s *SocialGraphService) Following(ctx context.Context, handle, q string, limit, offset int) ([]model.UserSummary, int, error) {
+	u, err := s.users.FindByHandle(ctx, handle)
+	if err != nil {
+		return nil, 0, err
+	}
+	return s.follows.ListFollowing(ctx, u.ID, q, limit, offset)
+}
+
 // ProfileExtras is the read used by the public-profile endpoint: the
 // target's follower/following counts plus, when a non-owner viewer is
 // signed in, their relationship to the target. rel is nil for anonymous