feat(admin): scalable host list (search/filter/health) + host detail redesign

- host list: search + datacenter/status filters, dense table with heartbeat
  health dot, instance count, capacity meter
- host detail: health hero (last_seen), storage/compute breakdown, technical
  facts, hosted-instances table
- Host model: usedPct() + healthState() helpers

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/Livewire/Admin/HostDetail.php

@@ -85,6 +85,8 @@ class HostDetail extends Component
             'run' => $run,
             'steps' => $this->buildSteps($run),
             'events' => $events,
+            'instances' => $this->host->instances()->latest('id')->get(),
+            'health' => $this->host->healthState(),
         ]);
     }
 }

app/Livewire/Admin/Hosts.php

@@ -2,17 +2,52 @@
 
 namespace App\Livewire\Admin;
 
+use App\Models\Datacenter;
 use App\Models\Host;
 use Livewire\Attributes\Layout;
+use Livewire\Attributes\Url;
 use Livewire\Component;
 
 #[Layout('layouts.admin')]
 class Hosts extends Component
 {
+    #[Url(as: 'q')]
+    public string $search = '';
+
+    #[Url]
+    public string $datacenter = '';
+
+    #[Url]
+    public string $status = '';
+
+    public function updated(): void
+    {
+        // no-op; keeps the query string in sync as filters change
+    }
+
+    public function clearFilters(): void
+    {
+        $this->reset('search', 'datacenter', 'status');
+    }
+
     public function render()
     {
+        $hosts = Host::query()
+            ->withCount('instances')
+            ->when($this->search !== '', function ($q) {
+                $term = '%'.$this->search.'%';
+                $q->where(fn ($w) => $w->where('name', 'like', $term)->orWhere('public_ip', 'like', $term));
+            })
+            ->when($this->datacenter !== '', fn ($q) => $q->where('datacenter', $this->datacenter))
+            ->when($this->status !== '', fn ($q) => $q->where('status', $this->status))
+            ->orderBy('datacenter')->orderBy('name')
+            ->get();
+
         return view('livewire.admin.hosts', [
-            'hosts' => Host::query()->orderBy('datacenter')->orderBy('name')->get(),
+            'hosts' => $hosts,
+            'datacenters' => Datacenter::query()->orderBy('name')->get(),
+            'statuses' => ['pending', 'onboarding', 'active', 'error', 'disabled'],
+            'total' => Host::query()->count(),
         ]);
     }
 }

app/Models/Host.php

@@ -81,6 +81,32 @@ class Host extends Model implements ProvisioningSubject
         return max(0, $this->freeGb() - $this->committedGb());
     }
 
+    /** Used-storage percentage (committed vs committable free), 0–100. */
+    public function usedPct(): int
+    {
+        $free = $this->freeGb();
+
+        return $free > 0 ? min(100, (int) round($this->committedGb() / $free * 100)) : 0;
+    }
+
+    /**
+     * Heartbeat health from last_seen_at: online (≤5 min), stale (≤30 min),
+     * offline (older or never seen). Drives the health dot in the console.
+     */
+    public function healthState(): string
+    {
+        if ($this->last_seen_at === null) {
+            return 'offline';
+        }
+        $minutes = $this->last_seen_at->diffInMinutes(now());
+
+        return match (true) {
+            $minutes <= 5 => 'online',
+            $minutes <= 30 => 'stale',
+            default => 'offline',
+        };
+    }
+
     /**
      * Placement (spec §1): first active host in the datacenter with enough free
      * committable storage. Cluster is ignored in v1.0.

lang/de/hosts.php

@@ -5,6 +5,25 @@ return [
     'subtitle' => 'Proxmox-Hosts und Kapazität.',
     'add' => 'Host hinzufügen',
     'empty' => 'Noch keine Hosts. Füge deinen ersten Server hinzu.',
+    'no_matches' => 'Keine Hosts für diese Filter.',
+    'search_placeholder' => 'Nach Name oder IP suchen …',
+    'all_datacenters' => 'Alle Rechenzentren',
+    'all_statuses' => 'Alle Status',
+    'clear' => 'Zurücksetzen',
+    'count' => ':shown von :total',
+    'col' => [
+        'host' => 'Host',
+        'datacenter' => 'RZ',
+        'health' => 'Zustand',
+        'instances' => 'Instanzen',
+        'capacity' => 'Kapazität',
+        'status' => 'Status',
+    ],
+    'health' => [
+        'online' => 'Online',
+        'stale' => 'Verzögert',
+        'offline' => 'Offline',
+    ],
 
     'create_title' => 'Host hinzufügen',
     'create_sub' => 'Frischen Server (Debian, nur Root) automatisch als Proxmox-Host aufnehmen.',
@@ -45,6 +64,28 @@ return [
         'disabled' => 'Deaktiviert',
     ],
 
+    'detail' => [
+        'health' => 'Zustand',
+        'storage' => 'Speicher',
+        'compute' => 'Rechenleistung',
+        'node' => 'Node',
+        'instances' => 'Instanzen',
+        'hosted' => 'Gehostete Instanzen',
+        'no_instances' => 'Auf diesem Host laufen noch keine Instanzen.',
+        'last_seen' => 'Zuletzt gesehen :time',
+        'never_seen' => 'Noch nie gesehen',
+        'committed' => ':gb GB belegt',
+        'reserve' => ':pct % Reserve',
+    ],
+
+    'istatus' => [
+        'active' => 'Aktiv',
+        'provisioning' => 'Bereitstellung',
+        'failed' => 'Fehler',
+        'suspended' => 'Ausgesetzt',
+        'cancellation_scheduled' => 'Kündigung',
+    ],
+
     'progress' => 'Fortschritt',
     'events' => 'Ereignisse',
     'no_run' => 'Für diesen Host läuft keine Bereitstellung.',

lang/en/hosts.php

@@ -5,6 +5,25 @@ return [
     'subtitle' => 'Proxmox hosts and capacity.',
     'add' => 'Add host',
     'empty' => 'No hosts yet. Add your first server.',
+    'no_matches' => 'No hosts match these filters.',
+    'search_placeholder' => 'Search by name or IP …',
+    'all_datacenters' => 'All datacenters',
+    'all_statuses' => 'All statuses',
+    'clear' => 'Clear',
+    'count' => ':shown of :total',
+    'col' => [
+        'host' => 'Host',
+        'datacenter' => 'DC',
+        'health' => 'Health',
+        'instances' => 'Instances',
+        'capacity' => 'Capacity',
+        'status' => 'Status',
+    ],
+    'health' => [
+        'online' => 'Online',
+        'stale' => 'Stale',
+        'offline' => 'Offline',
+    ],
 
     'create_title' => 'Add host',
     'create_sub' => 'Onboard a fresh server (Debian, root only) as a Proxmox host automatically.',
@@ -45,6 +64,28 @@ return [
         'disabled' => 'Disabled',
     ],
 
+    'detail' => [
+        'health' => 'Health',
+        'storage' => 'Storage',
+        'compute' => 'Compute',
+        'node' => 'Node',
+        'instances' => 'Instances',
+        'hosted' => 'Hosted instances',
+        'no_instances' => 'No instances running on this host yet.',
+        'last_seen' => 'Last seen :time',
+        'never_seen' => 'Never seen',
+        'committed' => ':gb GB committed',
+        'reserve' => ':pct % reserve',
+    ],
+
+    'istatus' => [
+        'active' => 'Active',
+        'provisioning' => 'Provisioning',
+        'failed' => 'Failed',
+        'suspended' => 'Suspended',
+        'cancellation_scheduled' => 'Cancelling',
+    ],
+
     'progress' => 'Progress',
     'events' => 'Events',
     'no_run' => 'No provisioning run for this host.',

resources/views/livewire/admin/host-detail.blade.php

@@ -27,21 +27,93 @@
         </div>
     </div>
 
-    @if ($host->status === 'active')
-        <div class="grid grid-cols-2 gap-3 sm:grid-cols-4 animate-rise">
-            @foreach ([
-                ['meta.cores', $host->cpu_cores],
-                ['meta.ram', $host->total_ram_mb ? round($host->total_ram_mb / 1024).' GB' : __('hosts.unknown')],
-                ['meta.wg_ip', $host->wg_ip ?? __('hosts.unknown')],
-                ['meta.version', $host->pve_version ?? __('hosts.unknown')],
-            ] as [$key, $value])
-                <div class="rounded-xl border border-line bg-surface p-4 shadow-xs">
-                    <p class="text-xs text-muted">{{ __('hosts.'.$key) }}</p>
-                    <p class="mt-1 truncate font-mono text-sm font-semibold text-ink">{{ $value }}</p>
-                </div>
-            @endforeach
+    {{-- Health + resource overview --}}
+    @php
+        $hdot = ['online' => 'bg-success-bright', 'stale' => 'bg-warning', 'offline' => 'bg-danger'][$health];
+        $htone = ['online' => 'text-success', 'stale' => 'text-warning', 'offline' => 'text-danger'][$health];
+        $usedPct = $host->usedPct();
+    @endphp
+    <div class="grid grid-cols-1 gap-4 lg:grid-cols-3 animate-rise">
+        {{-- Health --}}
+        <div class="rounded-xl border border-line bg-surface p-5 shadow-xs">
+            <p class="text-xs font-semibold uppercase tracking-wide text-faint">{{ __('hosts.detail.health') }}</p>
+            <p class="mt-2 flex items-center gap-2 text-lg font-semibold {{ $htone }}">
+                <span class="size-2.5 rounded-pill {{ $hdot }} {{ $health === 'online' ? 'animate-pulse' : '' }}" aria-hidden="true"></span>
+                {{ __('hosts.health.'.$health) }}
+            </p>
+            <p class="mt-1 text-xs text-muted">
+                {{ $host->last_seen_at ? __('hosts.detail.last_seen', ['time' => $host->last_seen_at->diffForHumans()]) : __('hosts.detail.never_seen') }}
+            </p>
         </div>
-    @endif
+
+        {{-- Storage capacity --}}
+        <div class="rounded-xl border border-line bg-surface p-5 shadow-xs">
+            <p class="text-xs font-semibold uppercase tracking-wide text-faint">{{ __('hosts.detail.storage') }}</p>
+            @if ($host->total_gb)
+                <p class="mt-2 font-mono text-lg font-semibold text-ink">{{ $host->availableGb() }} <span class="text-sm font-normal text-muted">/ {{ $host->freeGb() }} GB {{ __('hosts.free') }}</span></p>
+                <div class="mt-2 h-2 overflow-hidden rounded-pill bg-surface-2">
+                    <div class="h-full rounded-pill {{ $usedPct >= 80 ? 'bg-danger' : 'bg-accent' }}" style="width: {{ $usedPct }}%"></div>
+                </div>
+                <p class="mt-1.5 text-xs text-muted">{{ __('hosts.detail.committed', ['gb' => $host->committedGb()]) }} · {{ __('hosts.detail.reserve', ['pct' => $host->reserve_pct]) }}</p>
+            @else
+                <p class="mt-2 text-sm text-muted">{{ __('hosts.unknown') }}</p>
+            @endif
+        </div>
+
+        {{-- Compute --}}
+        <div class="rounded-xl border border-line bg-surface p-5 shadow-xs">
+            <p class="text-xs font-semibold uppercase tracking-wide text-faint">{{ __('hosts.detail.compute') }}</p>
+            <div class="mt-2 grid grid-cols-2 gap-3">
+                <div>
+                    <p class="font-mono text-lg font-semibold text-ink">{{ $host->cpu_cores ?? '—' }}</p>
+                    <p class="text-xs text-muted">{{ __('hosts.meta.cores') }}</p>
+                </div>
+                <div>
+                    <p class="font-mono text-lg font-semibold text-ink">{{ $host->total_ram_mb ? round($host->total_ram_mb / 1024).' GB' : '—' }}</p>
+                    <p class="text-xs text-muted">{{ __('hosts.meta.ram') }}</p>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    {{-- Technical facts --}}
+    <div class="grid grid-cols-2 gap-3 sm:grid-cols-4 animate-rise [animation-delay:60ms]">
+        @foreach ([
+            ['meta.wg_ip', $host->wg_ip ?? __('hosts.unknown')],
+            ['detail.node', $host->node ?? __('hosts.unknown')],
+            ['meta.version', $host->pve_version ?? __('hosts.unknown')],
+            ['detail.instances', (string) $instances->count()],
+        ] as [$key, $value])
+            <div class="rounded-xl border border-line bg-surface p-4 shadow-xs">
+                <p class="text-xs text-muted">{{ __('hosts.'.$key) }}</p>
+                <p class="mt-1 truncate font-mono text-sm font-semibold text-ink">{{ $value }}</p>
+            </div>
+        @endforeach
+    </div>
+
+    {{-- Hosted instances --}}
+    <div class="rounded-xl border border-line bg-surface p-5 shadow-xs animate-rise [animation-delay:100ms]">
+        <h2 class="mb-3 text-sm font-semibold text-ink">{{ __('hosts.detail.hosted') }}</h2>
+        @if ($instances->isEmpty())
+            <p class="text-sm text-muted">{{ __('hosts.detail.no_instances') }}</p>
+        @else
+            <div class="overflow-x-auto">
+                <table class="w-full text-sm">
+                    <tbody>
+                        @foreach ($instances as $inst)
+                            @php $ibadge = ['active' => 'active', 'provisioning' => 'provisioning', 'failed' => 'failed', 'suspended' => 'suspended', 'cancellation_scheduled' => 'warning'][$inst->status] ?? 'info'; @endphp
+                            <tr class="border-b border-line last:border-0">
+                                <td class="py-2.5 pr-4 font-mono text-ink">{{ $inst->subdomain ?? '—' }}</td>
+                                <td class="py-2.5 pr-4 text-body">{{ __('billing.plan.'.$inst->plan) }}</td>
+                                <td class="py-2.5 pr-4 font-mono text-xs text-muted">{{ $inst->disk_gb }} GB</td>
+                                <td class="py-2.5 text-right"><x-ui.badge :status="$ibadge">{{ __('hosts.istatus.'.$inst->status) }}</x-ui.badge></td>
+                            </tr>
+                        @endforeach
+                    </tbody>
+                </table>
+            </div>
+        @endif
+    </div>
 
     @if ($run && $run->status === 'failed')
         <div class="flex items-start gap-3 rounded-xl border border-danger-border bg-danger-bg p-4 animate-rise">

resources/views/livewire/admin/hosts.blade.php

@@ -9,47 +9,92 @@
         </a>
     </div>
 
+    {{-- Filter bar — scales to many hosts (search + datacenter + status). --}}
+    <div class="flex flex-wrap items-center gap-2 animate-rise [animation-delay:40ms]">
+        <div class="relative min-w-48 flex-1">
+            <input type="search" wire:model.live.debounce.300ms="search" placeholder="{{ __('hosts.search_placeholder') }}"
+                   class="w-full rounded-md border border-line-strong bg-surface px-3 py-2 text-sm text-ink placeholder:text-faint" />
+        </div>
+        <select wire:model.live="datacenter" class="rounded-md border border-line-strong bg-surface px-3 py-2 text-sm text-body">
+            <option value="">{{ __('hosts.all_datacenters') }}</option>
+            @foreach ($datacenters as $dc)
+                <option value="{{ $dc->code }}">{{ $dc->name }} ({{ $dc->code }})</option>
+            @endforeach
+        </select>
+        <select wire:model.live="status" class="rounded-md border border-line-strong bg-surface px-3 py-2 text-sm text-body">
+            <option value="">{{ __('hosts.all_statuses') }}</option>
+            @foreach ($statuses as $s)
+                <option value="{{ $s }}">{{ __('hosts.status.'.$s) }}</option>
+            @endforeach
+        </select>
+        @if ($search !== '' || $datacenter !== '' || $status !== '')
+            <button type="button" wire:click="clearFilters" class="rounded-md border border-line px-3 py-2 text-sm text-muted hover:bg-surface-hover">{{ __('hosts.clear') }}</button>
+        @endif
+        <span class="ml-auto text-xs text-muted">{{ __('hosts.count', ['shown' => $hosts->count(), 'total' => $total]) }}</span>
+    </div>
+
     @if ($hosts->isEmpty())
         <div class="rounded-xl border border-dashed border-line-strong bg-surface p-10 text-center animate-rise">
             <span class="mx-auto grid size-12 place-items-center rounded-lg bg-surface-2 text-muted"><x-ui.icon name="server" class="size-6" /></span>
-            <p class="mt-3 text-sm text-muted">{{ __('hosts.empty') }}</p>
+            <p class="mt-3 text-sm text-muted">{{ $total === 0 ? __('hosts.empty') : __('hosts.no_matches') }}</p>
         </div>
     @else
-        <div class="grid grid-cols-1 gap-4 sm:grid-cols-2">
-            @foreach ($hosts as $host)
-                @php
-                    $badge = ['pending' => 'pending', 'onboarding' => 'provisioning', 'active' => 'active', 'error' => 'failed', 'disabled' => 'suspended'][$host->status] ?? 'info';
-                    $usedPct = $host->total_gb ? (int) round(($host->total_gb - $host->freeGb()) / max($host->total_gb, 1) * 100) : 0;
-                @endphp
-                <a href="{{ route('admin.hosts.show', $host) }}" wire:navigate
-                   class="block rounded-xl border border-line bg-surface p-5 shadow-xs transition hover:bg-surface-hover animate-rise">
-                    <div class="flex items-center gap-3">
-                        <span class="grid size-10 shrink-0 place-items-center rounded-lg bg-surface-2 text-accent-text"><x-ui.icon name="server" class="size-5" /></span>
-                        <div class="min-w-0">
-                            <p class="font-mono font-semibold text-ink">{{ $host->name }}</p>
-                            <p class="font-mono text-xs text-muted">{{ $host->public_ip }} · {{ $host->datacenter }}</p>
-                        </div>
-                        <x-ui.badge :status="$badge" class="ml-auto">{{ __('hosts.status.'.$host->status) }}</x-ui.badge>
-                    </div>
-                    <div class="mt-4">
-                        <div class="flex justify-between text-xs">
-                            <span class="text-muted">{{ __('hosts.capacity') }}</span>
-                            <span class="font-mono text-body">
-                                @if ($host->total_gb)
-                                    {{ $host->freeGb() }} / {{ $host->total_gb }} GB {{ __('hosts.free') }}
-                                @else
-                                    {{ __('hosts.unknown') }}
-                                @endif
-                            </span>
-                        </div>
-                        @if ($host->total_gb)
-                            <div class="mt-1 h-1.5 overflow-hidden rounded-pill bg-surface-2">
-                                <div class="h-full rounded-pill {{ $usedPct >= 80 ? 'bg-danger' : 'bg-accent' }}" style="width: {{ $usedPct }}%"></div>
-                            </div>
-                        @endif
-                    </div>
-                </a>
-            @endforeach
+        <div class="overflow-hidden rounded-xl border border-line bg-surface shadow-xs animate-rise [animation-delay:80ms]">
+            <div class="overflow-x-auto">
+                <table class="w-full text-sm">
+                    <thead>
+                        <tr class="border-b border-line bg-surface-2 text-left text-xs uppercase tracking-wide text-faint">
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.host') }}</th>
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.datacenter') }}</th>
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.health') }}</th>
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.instances') }}</th>
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.capacity') }}</th>
+                            <th class="px-4 py-3 font-semibold">{{ __('hosts.col.status') }}</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        @foreach ($hosts as $host)
+                            @php
+                                $badge = ['pending' => 'pending', 'onboarding' => 'provisioning', 'active' => 'active', 'error' => 'failed', 'disabled' => 'suspended'][$host->status] ?? 'info';
+                                $health = $host->healthState();
+                                $hdot = ['online' => 'bg-success-bright', 'stale' => 'bg-warning', 'offline' => 'bg-danger'][$health];
+                                $usedPct = $host->usedPct();
+                            @endphp
+                            <tr wire:key="host-{{ $host->uuid }}" class="border-b border-line last:border-0 hover:bg-surface-hover">
+                                <td class="px-4 py-3">
+                                    <a href="{{ route('admin.hosts.show', $host) }}" wire:navigate class="flex items-center gap-3">
+                                        <span class="grid size-9 shrink-0 place-items-center rounded-lg bg-surface-2 text-accent-text"><x-ui.icon name="server" class="size-4" /></span>
+                                        <span class="min-w-0">
+                                            <span class="block font-mono font-semibold text-ink">{{ $host->name }}</span>
+                                            <span class="block font-mono text-xs text-muted">{{ $host->public_ip }}</span>
+                                        </span>
+                                    </a>
+                                </td>
+                                <td class="px-4 py-3 font-mono text-xs text-body">{{ $host->datacenter }}</td>
+                                <td class="px-4 py-3">
+                                    <span class="inline-flex items-center gap-1.5 text-xs text-body">
+                                        <span class="size-2 rounded-pill {{ $hdot }}" aria-hidden="true"></span>{{ __('hosts.health.'.$health) }}
+                                    </span>
+                                </td>
+                                <td class="px-4 py-3 font-mono text-body">{{ $host->instances_count }}</td>
+                                <td class="px-4 py-3">
+                                    @if ($host->total_gb)
+                                        <div class="flex items-center gap-2">
+                                            <div class="h-1.5 w-24 overflow-hidden rounded-pill bg-surface-2">
+                                                <div class="h-full rounded-pill {{ $usedPct >= 80 ? 'bg-danger' : 'bg-accent' }}" style="width: {{ $usedPct }}%"></div>
+                                            </div>
+                                            <span class="font-mono text-xs text-muted">{{ $host->availableGb() }} / {{ $host->freeGb() }} GB</span>
+                                        </div>
+                                    @else
+                                        <span class="text-xs text-faint">{{ __('hosts.unknown') }}</span>
+                                    @endif
+                                </td>
+                                <td class="px-4 py-3"><x-ui.badge :status="$badge">{{ __('hosts.status.'.$host->status) }}</x-ui.badge></td>
+                            </tr>
+                        @endforeach
+                    </tbody>
+                </table>
+            </div>
         </div>
     @endif
 </div>

tests/Feature/Admin/HostManagementTest.php

@@ -3,6 +3,7 @@
 use App\Livewire\Admin\ConfirmRemoveHost;
 use App\Livewire\Admin\HostCreate;
 use App\Livewire\Admin\HostDetail;
+use App\Livewire\Admin\Hosts;
 use App\Models\Host;
 use App\Models\ProvisioningRun;
 use App\Models\User;
@@ -137,3 +138,31 @@ it('renders the live stepper for a running host', function () {
         ->assertSee(__('hosts.step.prepare_base_system'))
         ->assertSee(__('hosts.progress'));
 });
+
+it('filters the host list by search and datacenter', function () {
+    \App\Models\Datacenter::query()->firstOrCreate(['code' => 'fsn'], ['name' => 'Falkenstein']);
+    \App\Models\Datacenter::query()->firstOrCreate(['code' => 'hel'], ['name' => 'Helsinki']);
+    Host::factory()->create(['name' => 'pve-fsn-9', 'datacenter' => 'fsn', 'public_ip' => '203.0.113.9']);
+    Host::factory()->create(['name' => 'pve-hel-9', 'datacenter' => 'hel', 'public_ip' => '203.0.113.19']);
+
+    Livewire::actingAs(admin())->test(Hosts::class)
+        ->set('search', 'fsn-9')
+        ->assertSee('pve-fsn-9')
+        ->assertDontSee('pve-hel-9')
+        ->set('search', '')
+        ->set('datacenter', 'hel')
+        ->assertSee('pve-hel-9')
+        ->assertDontSee('pve-fsn-9');
+});
+
+it('reports host heartbeat health from last_seen_at', function () {
+    $online = Host::factory()->create(['last_seen_at' => now()->subMinutes(2)]);
+    $stale = Host::factory()->create(['last_seen_at' => now()->subMinutes(20)]);
+    $offline = Host::factory()->create(['last_seen_at' => now()->subHours(3)]);
+    $never = Host::factory()->create(['last_seen_at' => null]);
+
+    expect($online->healthState())->toBe('online')
+        ->and($stale->healthState())->toBe('stale')
+        ->and($offline->healthState())->toBe('offline')
+        ->and($never->healthState())->toBe('offline');
+});