So the operator can click through the page on their own machine before it is delivered: cmd/mail-page-dev
serves internal/web's real handlers on 127.0.0.1 alone, over invented mail in two accounts and an in-memory
mail reading that fills every section, with an always-signed-in stand-in; nothing reaches the bus, a
database, Keycloak or a mail server. -now fixes today. The README says how to run it and what is a stand-in.
ADR 0515 §1, §5: / greets the operator with what the mail signal told today and when they last looked, then
shows today, this week, later, the promises by kind, good to know, read later, handled today and the scam
warnings, from mail-reading.list; it records the page opened. The classical list moves to /all, as All mail.
A program cannot import a main package; the page's code moves to modules/mesh-mail-web/internal/web, and
cmd/mesh-mail-web is a two-line program calling it, so cmd/mail-page-dev (1859.5) serves the same handlers.
Nothing the module does changes.