Users
Admin, dispatcher, finance and viewer, each seeing only what they need.
Real team management — several people under one company, each with their own
role — needs a company account model this repository does not have yet: every account is its own
company of one today, and this page only shows the row Row Level Security lets you see, your own. See
"Company accounts with several users" and "Roles beyond the default" in
docs/02-supabase-setup.md.