Add customer names on the ledger, staff session login, and exclusive jobs.events.

Account-balance stores display names and looks up by name. Edge writes
names on customer create/edit; staff UIs join from edge when needed.
New verae-staff-session issues a host cookie; department HTML redirects
when STAFF_AUTH=1. JOBS_EVENTS_EXCLUSIVE lets jobs-events own the durable
consumer. Catalog index is cards; disabled fleet machines are grey.

scripts/gen-module-docs.py

@@ -68,6 +68,7 @@ REPO_READMES = [
     "verae-nats-accounts",
     "zapier-decisions",
     "ui-docs",
+    "verae-staff-session",
 ]
 
 SKIP_PARTS = {"test", "tests", "node_modules", "dist"}