The site's principles and content rules (including: no "rungs")

Write brief/07-principles.md: the reader (human or agent) first; the site scales communication and shared memory across a growing team of people and agents; fact-based Journalist, perspective from the Historian, maps from the Cartographer; shipped and proposed apart; every claim cited; words to avoid ("rung(s)": say "level" or "step"). The validator warns on the banned words in desk files. Link it from About and the desks' prompts.