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/operations/Index.vue

@@ -65,7 +65,7 @@ const setFilter = (key: string, value: string | null): void => {
                         :variant="filters.kind === kind ? 'default' : 'secondary'"
                         @click="setFilter('kind', kind)"
                     >
-                        {{ kind.replace('_', ' ') }}
+                        {{ kind.replace("_", " ") }}
                     </Button>
                     <Button
                         v-for="status in operationStatuses"
@@ -74,7 +74,7 @@ const setFilter = (key: string, value: string | null): void => {
                         :variant="filters.status === status ? 'default' : 'outline'"
                         @click="setFilter('status', filters.status === status ? null : status)"
                     >
-                        {{ status.replace('-', ' ') }}
+                        {{ status.replace("-", " ") }}
                     </Button>
                 </CardContent>
             </Card>