feat(bin): add captain inbox board #6

Job	Run time
Lint shell scripts	1m 35s
Behavior portable parallel 2	1m 17s
Behavior tests (Herdr)	5m 32s
Behavior portable parallel 1	1m 31s
Behavior portable serial	16m 3s
Stock macOS Bash snapshot compatibility	2m 55s
Test coverage guard	4s
Repo invariants	5s
Behavior timing aggregate	9s
	29m 11s

Navigation Menu