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/ui/select/SelectScrollUpButton.vue

@@ -0,0 +1,27 @@
+<script setup lang="ts">
+import { cn } from "@/lib/utils";
+import { ChevronUp } from "lucide-vue-next";
+import { SelectScrollUpButton, type SelectScrollUpButtonProps, useForwardProps } from "radix-vue";
+import { computed, type HTMLAttributes } from "vue";
+
+const props = defineProps<SelectScrollUpButtonProps & { class?: HTMLAttributes["class"] }>();
+
+const delegatedProps = computed(() => {
+    const { class: _, ...delegated } = props;
+
+    return delegated;
+});
+
+const forwardedProps = useForwardProps(delegatedProps);
+</script>
+
+<template>
+    <SelectScrollUpButton
+        v-bind="forwardedProps"
+        :class="cn('flex cursor-default items-center justify-center py-1', props.class)"
+    >
+        <slot>
+            <ChevronUp class="size-4" />
+        </slot>
+    </SelectScrollUpButton>
+</template>