[2/N] docs(sqsim): define scenario and behavior model#384

albertywu wants to merge 1 commit into

wua/codex/sqsim-rfcuber/submitqueue:wua/codex/sqsim-rfcfrom

wua/codex/sqsim-designuber/submitqueue:wua/codex/sqsim-designCopy head branch name to clipboard