WS-8: N+1 entschaerfen und PM-Zugriffsmuster konsolidieren

- User::currentPlan() und hasUnlimitedPressReleaseQuota() pro Request
  memoisiert. Beide werden je Render mehrfach abgefragt (Status-Widget auf
  jeder Seite, Buchungsseite, Quota-Methoden) und loesten bisher jeweils
  eigene subscription-/Plan-/payment-option-Queries aus. fresh() setzt den
  Cache zurueck.
- show.blade.php: getMyPR() war NICHT memoisiert und wurde pro Request bis
  zu 7x mit voller Eager-Load-Query aufgerufen -> jetzt memoisiert. Firmen-
  Kennzahlen direkt per withCount() eager geladen statt nachtraeglichem
  loadCount().
- Dupliziertes Zugriffsmuster (withoutGlobalScopes + user_id/company_id) aus
  edit/show/index in PressRelease::scopeAccessibleBy(User) zentralisiert
  (Single Source of Truth fuer Kunden-PM-Zugriff), mit Tests abgesichert.

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

app/Models/PressRelease.php

@@ -184,6 +184,28 @@ class PressRelease extends Model
         return $query->whereHas('boosts', fn (Builder $q) => $q->active());
     }
 
+    /**
+     * Beschränkt auf PMs, die dem User gehören (als Autor) oder zu einer ihm
+     * zugeordneten Firma. Bewusst ohne Portal-GlobalScope: ein Kunde darf
+     * seine eigenen PMs portalübergreifend sehen und bearbeiten.
+     *
+     * Single Source of Truth für den Kunden-Zugriff auf PMs — genutzt von der
+     * Übersicht, Detail-, Bearbeiten- und Nachweis-Ansicht.
+     */
+    public function scopeAccessibleBy(Builder $query, User $user): Builder
+    {
+        return $query->withoutGlobalScopes()
+            ->where(function (Builder $q) use ($user): void {
+                $q->where('user_id', $user->id);
+
+                $companyIds = $user->accessibleCompanyIds();
+
+                if ($companyIds !== []) {
+                    $q->orWhereIn('company_id', $companyIds);
+                }
+            });
+    }
+
     /**
      * Display-ready text. Returns sanitized HTML for Phase-7+ PMs and
      * <p>/<br>-wrapped legacy plain text for older imports.

app/Models/User.php

@@ -117,25 +117,45 @@ class User extends Authenticatable implements MustVerifyEmail
         return (bool) $this->billingAddress?->isComplete();
     }
 
+    /**
+     * Per-Request-Memoisierung: Tarif und Unlimited-Flag werden pro Render
+     * mehrfach abgefragt (u. a. vom immer sichtbaren Status-Widget und der
+     * Buchungsseite). Beide ändern sich innerhalb eines Requests nicht über
+     * In-App-Aktionen (Abo läuft über Stripe-Redirect, Bestandstarif über
+     * CLI), daher ist die Memoisierung sicher; `fresh()` liefert eine neue
+     * Instanz und setzt den Cache zurück.
+     */
+    private bool $currentPlanResolved = false;
+
+    private ?Plan $cachedCurrentPlan = null;
+
+    private ?bool $cachedHasUnlimitedQuota = null;
+
     /**
      * Der Tarif des aktiven Stripe-Abos, aufgelöst über die in `plans`
      * gepflegten Stripe-Preis-IDs. Null ohne (gültiges) Abo.
      */
     public function currentPlan(): ?Plan
     {
+        if ($this->currentPlanResolved) {
+            return $this->cachedCurrentPlan;
+        }
+
+        $this->currentPlanResolved = true;
+
         $subscription = $this->subscription();
 
         if (! $subscription?->valid()) {
-            return null;
+            return $this->cachedCurrentPlan = null;
         }
 
         $priceId = $subscription->stripe_price;
 
         if (! $priceId) {
-            return null;
+            return $this->cachedCurrentPlan = null;
         }
 
-        return Plan::query()
+        return $this->cachedCurrentPlan = Plan::query()
             ->where('stripe_price_id_monthly', $priceId)
             ->orWhere('stripe_price_id_yearly', $priceId)
             ->first();
@@ -160,11 +180,15 @@ class User extends Authenticatable implements MustVerifyEmail
      */
     public function hasUnlimitedPressReleaseQuota(): bool
     {
-        if (! config('billing.enforce_booking')) {
-            return true;
+        if ($this->cachedHasUnlimitedQuota !== null) {
+            return $this->cachedHasUnlimitedQuota;
         }
 
-        return $this->userPaymentOptions()
+        if (! config('billing.enforce_booking')) {
+            return $this->cachedHasUnlimitedQuota = true;
+        }
+
+        return $this->cachedHasUnlimitedQuota = $this->userPaymentOptions()
             ->whereIn('status', [
                 UserPaymentOptionStatus::Active->value,
                 UserPaymentOptionStatus::Grandfathered->value,

resources/views/livewire/customer/press-releases/edit.blade.php

@@ -684,16 +684,7 @@ new #[Layout('components.layouts.app'), Title('Pressemitteilung bearbeiten')] cl
     {
         // Pro Livewire-Request memoisiert: mount(), with() und save() greifen
         // sonst jeweils mit einer eigenen Query auf dieselbe PM zu.
-        $user = auth()->user();
-
-        return $this->cachedPressRelease ??= PressRelease::withoutGlobalScopes()
-            ->where(function ($q) use ($user): void {
-                $q->where('user_id', $user->id);
-                $companyIds = $user->accessibleCompanyIds();
-                if ($companyIds !== []) {
-                    $q->orWhereIn('company_id', $companyIds);
-                }
-            })
+        return $this->cachedPressRelease ??= PressRelease::accessibleBy(auth()->user())
             ->findOrFail($this->id);
     }
 

resources/views/livewire/customer/press-releases/index.blade.php

@@ -110,19 +110,11 @@ new #[Layout('components.layouts.app'), Title('Meine Pressemitteilungen')] class
 
     public function with(): array
     {
-        $userId = auth()->id();
         $context = app(CustomerCompanyContext::class);
         $selectedCompanyId = $context->selectedCompanyId(auth()->user());
-        // Firmen-Scope: eigene PMs (Autor) ODER PMs der zugeordneten Firmen.
-        $accessibleCompanyIds = auth()->user()->accessibleCompanyIds();
 
-        $base = PressRelease::withoutGlobalScopes()
-            ->where(function ($q) use ($userId, $accessibleCompanyIds): void {
-                $q->where('user_id', $userId);
-                if ($accessibleCompanyIds !== []) {
-                    $q->orWhereIn('company_id', $accessibleCompanyIds);
-                }
-            })
+        // Firmen-Scope: eigene PMs (Autor) ODER PMs der zugeordneten Firmen.
+        $base = PressRelease::accessibleBy(auth()->user())
             ->when($selectedCompanyId !== null, fn($q) => $q->where('company_id', $selectedCompanyId))
             ->when($selectedCompanyId === null && $this->companyFilter === 'assigned', fn($q) => $q->whereNotNull('company_id'))
             ->when($selectedCompanyId === null && $this->companyFilter === 'unassigned', fn($q) => $q->whereNull('company_id'));

resources/views/livewire/customer/press-releases/show.blade.php

@@ -158,7 +158,7 @@ new #[Layout('components.layouts.app'), Title('Pressemitteilung')] class extends
         $cover = app(PressReleaseCoverImage::class);
         $user = auth()->user();
 
-        $company = $pr->company?->loadCount(['pressReleases', 'contacts']);
+        $company = $pr->company;
 
         $boostService = app(BoostService::class);
         $proofService = app(ProofPdfService::class);
@@ -246,20 +246,19 @@ new #[Layout('components.layouts.app'), Title('Pressemitteilung')] class extends
         return implode(' · ', $parts);
     }
 
+    private ?PressRelease $cachedPressRelease = null;
+
     private function getMyPR(): PressRelease
     {
-        $user = auth()->user();
-
-        return PressRelease::withoutGlobalScopes()
-            ->where(function ($q) use ($user): void {
-                $q->where('user_id', $user->id);
-                $companyIds = $user->accessibleCompanyIds();
-                if ($companyIds !== []) {
-                    $q->orWhereIn('company_id', $companyIds);
-                }
-            })
+        // Pro Livewire-Request memoisiert: mount(), with() und die Add-on-
+        // Aktionen rufen getMyPR() sonst jeweils mit der vollen Eager-Load-
+        // Query erneut auf. Firmen-Kennzahlen direkt mit eager laden, statt
+        // sie nachträglich per loadCount() nachzuziehen.
+        return $this->cachedPressRelease ??= PressRelease::accessibleBy(auth()->user())
             ->with([
-                'company:id,name,email,phone,address,portal,logo_path,legacy_portal,is_active,type',
+                'company' => fn ($query) => $query
+                    ->select(['id', 'name', 'email', 'phone', 'address', 'portal', 'logo_path', 'legacy_portal', 'is_active', 'type'])
+                    ->withCount(['pressReleases', 'contacts']),
                 'category.translations',
                 'contacts' => fn ($query) => $query
                     ->withoutGlobalScopes()

tests/Feature/PressReleaseAccessScopeTest.php

@@ -0,0 +1,73 @@
+<?php
+
+use App\Enums\Portal;
+use App\Models\Company;
+use App\Models\PressRelease;
+use App\Models\User;
+use App\Services\CurrentPortalContext;
+use Database\Seeders\RolesAndPermissionsSeeder;
+use Tests\TestCase;
+
+beforeEach(function (): void {
+    /** @var TestCase $this */
+    $this->seed(RolesAndPermissionsSeeder::class);
+});
+
+test('accessibleBy includes a users own authored press release', function () {
+    $user = User::factory()->create();
+    $pr = PressRelease::factory()->create(['user_id' => $user->id, 'company_id' => null]);
+
+    $ids = PressRelease::accessibleBy($user)->pluck('id');
+
+    expect($ids)->toContain($pr->id);
+});
+
+test('accessibleBy includes press releases of an assigned company', function () {
+    $user = User::factory()->create();
+    $company = Company::factory()->presseecho()->create();
+    $user->companies()->attach($company->id, ['role' => 'owner']);
+
+    $other = User::factory()->create();
+    $pr = PressRelease::factory()->create([
+        'user_id' => $other->id,
+        'company_id' => $company->id,
+        'portal' => $company->portal->value,
+    ]);
+
+    $ids = PressRelease::accessibleBy($user)->pluck('id');
+
+    expect($ids)->toContain($pr->id);
+});
+
+test('accessibleBy excludes press releases of strangers and unrelated companies', function () {
+    $user = User::factory()->create();
+    $stranger = User::factory()->create();
+    $foreignCompany = Company::factory()->presseecho()->create();
+
+    $foreignPr = PressRelease::factory()->create([
+        'user_id' => $stranger->id,
+        'company_id' => $foreignCompany->id,
+        'portal' => $foreignCompany->portal->value,
+    ]);
+
+    $ids = PressRelease::accessibleBy($user)->pluck('id');
+
+    expect($ids)->not->toContain($foreignPr->id);
+});
+
+test('accessibleBy bypasses the portal global scope so own PMs are visible cross-portal', function () {
+    $user = User::factory()->create();
+    $pr = PressRelease::factory()->create([
+        'user_id' => $user->id,
+        'company_id' => null,
+        'portal' => Portal::Businessportal24->value,
+    ]);
+
+    // Simuliert eingeschränkten Portal-Kontext (Presseecho); der Scope muss
+    // die eigene PM dennoch finden, weil er die GlobalScopes entfernt.
+    CurrentPortalContext::set(Portal::Presseecho);
+
+    $found = PressRelease::accessibleBy($user)->find($pr->id);
+
+    expect($found)->not->toBeNull();
+});