Restructure UX and seed a fully simulated organisation

Rework the dashboard, environment topology view, header navigation, and
status rendering, and standardise selects on a shadcn-vue component.

Replace the thin database seeder with a SimulatedEnvironmentSeeder that
builds a fully wired, mostly-running organisation (ACTIVE server fleet,
managed + GHCR registries, Gitea source provider, ClipBin app with
production/staging environments, services, slices, endpoints, managed
variables, build artifacts, and a completed/in-progress/failed operations
history) so the new UI renders against realistic data.

resources/js/pages/gateway-routes/Index.vue

@@ -13,7 +13,8 @@ const props = defineProps<{
 }>();
 
 const destroyRoute = (routeAttachment: Record<string, any>): void => {
-    const domain = routeAttachment.service_slice?.config?.domain ?? routeAttachment.service_slice?.name;
+    const domain =
+        routeAttachment.service_slice?.config?.domain ?? routeAttachment.service_slice?.name;
 
     if (!window.confirm(`Remove gateway route ${domain}?`)) {
         return;
@@ -87,7 +88,10 @@ const destroyRoute = (routeAttachment: Record<string, any>): void => {
                         <div class="flex flex-wrap items-start justify-between gap-3">
                             <div>
                                 <CardTitle>
-                                    {{ routeAttachment.service_slice?.config?.domain ?? "Unassigned domain" }}
+                                    {{
+                                        routeAttachment.service_slice?.config?.domain ??
+                                        "Unassigned domain"
+                                    }}
                                 </CardTitle>
                                 <CardDescription>
                                     {{ routeAttachment.service?.name }} ·