Management UI

Attempt 2 of a management ui.

stacks/infra/Caddyfile

@@ -0,0 +1,12 @@
+{
+	# Let's Encrypt sends renewal/expiry notices here.
+	email {$ACME_EMAIL}
+}
+
+# One file per business in sites/ (see sites/.gitkeep) — Caddy doesn't
+# watch this directory for changes on its own, so adding/removing a file
+# needs `docker exec next-chair-caddy caddy reload --config
+# /etc/caddy/Caddyfile` (see stacks/infra/compose.yaml's header) to take
+# effect. The management UI (manager/) automates writing these files and
+# reloading.
+import sites/*.caddy