Migrate console off jupiter.nearle.app to the Doormile Express API

Retires REACT_APP_URL/URL2/URL3 in favor of REACT_APP_DOORMILE_URL across
every page (orders, deliveries, riders, tenants, pricing, profile, reports,
dispatch). Fixes several field-mapping and envelope-check bugs found along
the way, most notably that /admin/milers/:id routes (block, assign-vehicle,
edit, notify) key off milerprofileid, not userid, and that a miler's real
fields are phone/availabilitystatus/displayname, not contactno/status/
firstname+lastname (confirmed against a live read-only session).

Also fixes several silent-failure bugs uncovered during that audit: order
creation and order cancellation showed a success toast but gave no feedback
at all on failure (createorder1.js had a dead notifyadmin() call that left
the loading spinner stuck forever on every failed submit), and Tenants.js's
pricing/profile updates never surfaced a failed response to the operator.

The AI dispatch optimiser (routes.workolik.com/routemate.workolik.com) and
its jupiter.nearle.app delivery-commit call remain untouched by design —
separate solver service with no equivalent in the new API.

README.md

@@ -50,10 +50,7 @@ REACT_APP_VERSION=v2.1.0
 GENERATE_SOURCEMAP=false
 
 # Backend Services Endpoint URLs
-REACT_APP_API_URL=https://mock-data-api-nextjs.vercel.app/
-REACT_APP_URL=https://jupiter.nearle.app/live/api/v1
-REACT_APP_URL2=https://jupiter.nearle.app/live/api/v2
-REACT_APP_URL3=https://jupiter.nearle.app/live/api/v3
+REACT_APP_DOORMILE_URL=https://api.doormile.com/api/v1
 ```
 
 No Maps API key is required — maps and address search run on free Leaflet/OpenStreetMap (Nominatim + OSRM), not Google Maps.