Perf: customer press-releases-Liste ueber UNION statt OR-Paginate

Die Uebersicht /admin/me/press-releases war auch fuer leere Konten ~2s: der OR-Filter in scopeAccessibleBy zwang die Paginator-count(*) zum Full-Scan (EXPLAIN type=ALL, ~174k Zeilen) und den Zeilen-Fetch bei 0 Treffern zum vollen created_at-Index-Scan (~1s). Neue PressRelease::accessiblePageFor() nutzt dieselbe index-freundliche UNION wie accessibleStatusCountsFor(): schmale UNION liefert die Seiten-IDs ueber user_id-/company_id-Index, danach nur 25 Modelle hydratisiert; Total via schnellem UNION-count. Messung: leer ~2000ms -> 167ms, groesstes Konto (20.830 PMs) ~740ms -> 468ms.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/Feature/PressReleaseAccessiblePageTest.php

@@ -0,0 +1,79 @@
+<?php
+
+use App\Enums\PressReleaseStatus;
+use App\Models\Company;
+use App\Models\PressRelease;
+use App\Models\User;
+
+test('includes authored and company-linked releases and dedupes overlap', function () {
+    $user = User::factory()->create();
+    $company = Company::factory()->create();
+    $user->companies()->attach($company->id, ['role' => 'member']);
+
+    $authored = PressRelease::factory()->create(['user_id' => $user->id, 'company_id' => null]);
+    $viaCompany = PressRelease::factory()->create(['company_id' => $company->id]);
+    // erfüllt beide Zweige – darf nur einmal gezählt werden
+    $both = PressRelease::factory()->create(['user_id' => $user->id, 'company_id' => $company->id]);
+
+    $page = PressRelease::accessiblePageFor($user);
+
+    expect($page->total())->toBe(3)
+        ->and($page->pluck('id')->sort()->values()->all())
+        ->toBe(collect([$authored->id, $viaCompany->id, $both->id])->sort()->values()->all());
+});
+
+test('excludes releases the user cannot access', function () {
+    $user = User::factory()->create();
+    $stranger = PressRelease::factory()->create();
+
+    $page = PressRelease::accessiblePageFor($user);
+
+    expect($page->total())->toBe(0)
+        ->and($page->contains($stranger))->toBeFalse();
+});
+
+test('applies the constrain closure to both union branches', function () {
+    $user = User::factory()->create();
+    PressRelease::factory()->create(['user_id' => $user->id, 'status' => PressReleaseStatus::Published->value]);
+    PressRelease::factory()->create(['user_id' => $user->id, 'status' => PressReleaseStatus::Draft->value]);
+
+    $page = PressRelease::accessiblePageFor(
+        $user,
+        fn ($query) => $query->where('status', PressReleaseStatus::Published->value),
+    );
+
+    expect($page->total())->toBe(1)
+        ->and($page->first()->status)->toBe(PressReleaseStatus::Published);
+});
+
+test('respects sort column and direction', function () {
+    $user = User::factory()->create();
+    $a = PressRelease::factory()->create(['user_id' => $user->id, 'title' => 'Alpha']);
+    $z = PressRelease::factory()->create(['user_id' => $user->id, 'title' => 'Zulu']);
+
+    $asc = PressRelease::accessiblePageFor($user, null, 'title', 'asc');
+    $desc = PressRelease::accessiblePageFor($user, null, 'title', 'desc');
+
+    expect($asc->first()->id)->toBe($a->id)
+        ->and($desc->first()->id)->toBe($z->id);
+});
+
+test('paginates with the given page size', function () {
+    $user = User::factory()->create();
+    PressRelease::factory()->count(7)->create(['user_id' => $user->id]);
+
+    $page = PressRelease::accessiblePageFor($user, null, 'created_at', 'desc', 5);
+
+    expect($page->total())->toBe(7)
+        ->and($page->perPage())->toBe(5)
+        ->and($page->count())->toBe(5);
+});
+
+test('falls back to created_at for an invalid sort column', function () {
+    $user = User::factory()->create();
+    PressRelease::factory()->create(['user_id' => $user->id]);
+
+    $page = PressRelease::accessiblePageFor($user, null, 'title; drop table', 'sideways');
+
+    expect($page->total())->toBe(1);
+});