7a386dc9bb
Single house style for every hand-rolled usage line: 'Usage: aura <verb> ...' (clap's capital prefix + program name), 10 literal edits + the one casing-sensitive test pin in lockstep. Refusal diagnostics, the conforming run_args_from site, clap output, and the fieldtests corpus stay byte-identical. Grounding-check PASS is the autonomous signature; scope-fork decisions are recorded on the issue. refs #179