lulu/testdata/interiorvalidationreq.json, branch v0.2.0Lulu book printing API client Go library and CLI.cli: test validate-interior2026-05-14T22:26:01+00:00Sam Anthonysam@samanthony.xyz2026-05-14T22:26:01+00:007ffc98c007601921db0677fc07c9779f71bb3499