Development record

`.abcd/development/brief/05-internals/05-prompt-quality.md:101` says research files do not exist for any shipped agent. `.abcd/development/research/prompting/agents/intent-fidelity-reviewer.md` is research for the shipped intent auditor (`.abcd/development/research/prompting/agents/README.md:44`), and :151-155 of the same chapter says it is stranded under the old name, so that no shipped prompt has a research file it can find.