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/components/environments/SpecRow.vue

@@ -0,0 +1,19 @@
+<script setup lang="ts">
+defineProps<{
+    icon?: object | Function;
+    label: string;
+    value?: string | number | null;
+}>();
+</script>
+
+<template>
+    <div class="flex items-center justify-between gap-3 text-sm">
+        <span class="flex items-center gap-2 text-muted-foreground">
+            <component :is="icon" v-if="icon" class="size-4 opacity-70" />
+            {{ label }}
+        </span>
+        <span class="truncate text-right font-medium">
+            <slot>{{ value ?? "—" }}</slot>
+        </span>
+    </div>
+</template>