Simplify chunked octree traversals #75

Job	Run time
Build (ubuntu-20.04)	52s
Build (ubuntu-22.04)	1m 6s
Build (ubuntu-24.04)	1m 8s
Clang tidy	2m 45s
Test (ubuntu-20.04)	1m 41s
Test (ubuntu-22.04)	1m 29s
Test (ubuntu-24.04)	1m 25s
Sanitize undefined behavior	5m 35s
Sanitize addressability and leaks	5m 45s
Valgrind memcheck	15m 39s
Sanitize data races and deadlocks	4m 10s
	41m 35s

Provide feedback