[P2 Security] Laravel Authorization Policies für ProjectProposal, Vote, Election (vibe-kanban 85007440)

## Security Audit: Fehlende zentralisierte Autorisierung

### Problem
Die Anwendung hat **keine Laravel Policy-Klassen**. Autorisierungslogik ist verstreut in:

- **Blade Templates:** Inline `@if`-Checks gegen `config('einundzwanzig.config.current_board')`
- **Livewire Trait:** `app/Livewire/Traits/WithNostrAuth.php` setzt `$isAllowed` und `$canEdit` Booleans
- **Component-Mount-Methoden:** z.B. in `project-support/form/create.blade.php` (Zeile 41-47)

Die Board-Member-Autorisierung funktioniert über einen Vergleich mit hartkodierten npubs in `config/einundzwanzig/config.php`:
```php
'current_board' => [
    'npub1pt0kw36...', 'npub1gvqkjc...', // etc.
]
```

**Probleme:**
- Keine zentrale Stelle für Berechtigungsprüfungen
- Autorisierung kann leicht vergessen werden wenn neue Endpoints hinzukommen
- Board-Member-Check wird an vielen Stellen dupliziert
- Livewire-Actions können ggf. direkt aufgerufen werden ohne UI-seitige Prüfung

### Lösung

**1. Laravel Policies erstellen:**

```bash
php artisan make:policy ProjectProposalPolicy --model=ProjectProposal --no-interaction
php artisan make:policy VotePolicy --model=Vote --no-interaction
php artisan make:policy ElectionPolicy --model=Election --no-interaction
```

**2. Policy-Methoden implementieren:**

Für `ProjectProposalPolicy`:
- `viewAny()` – Jeder darf die Liste sehen
- `view()` – Jeder darf ein Proposal sehen
- `create()` – Nur authentifizierte User mit `association_status > 1` und bezahlter Mitgliedschaft im aktuellen Jahr
- `update()` – Nur der Ersteller ODER Board-Members
- `delete()` – Nur Board-Members
- `accept()` – Nur Board-Members (custom method für `accepted`-Flag)

Für `VotePolicy`:
- `create()` – Authentifizierte User, die noch nicht für dieses Proposal abgestimmt haben
- `update()` / `delete()` – Nur der eigene Vote

Für `ElectionPolicy`:
- `viewAny()` / `view()` – Jeder
- `create()` / `update()` / `delete()` – Nur Board-Members
- `vote()` – Authentifizierte Mitglieder mit gültigem Status

**3. Auth-Checks in der Nostr-Auth-Architektur:**

Die App nutzt eine Custom NostrAuth (`app/Support/NostrAuth.php`, `app/Auth/NostrUser.php`). Die Policies müssen mit `NostrUser` funktionieren. Prüfe ob `NostrUser` das `Authenticatable` Interface korrekt implementiert, damit `$this->authorize()` und `Gate::allows()` in Livewire-Components funktionieren.

**4. Policies in Livewire-Components nutzen:**

Ersetze die inline-Checks in den Components durch Policy-Aufrufe:
```php
// Vorher (verstreut in Blade/Component):
if (in_array($this->currentPleb->npub, config('einundzwanzig.config.current_board'), true)) { ... }

// Nachher (zentralisiert):
$this->authorize('update', $projectProposal);
```

### Betroffene Dateien
- **Neue Dateien:** `app/Policies/ProjectProposalPolicy.php`, `app/Policies/VotePolicy.php`, `app/Policies/ElectionPolicy.php`
- **Anpassen:** `app/Livewire/Traits/WithNostrAuth.php` – Board-Check in Policy auslagern
- **Anpassen:** Livewire-Components in `app/Livewire/Association/ProjectSupport/` – `$this->authorize()` nutzen
- **Anpassen:** Livewire-Components in `app/Livewire/Association/Election/` – `$this->authorize()` nutzen
- **Prüfen:** `app/Auth/NostrUser.php` – Kompatibilität mit Policy-System
- **Prüfen:** `config/einundzwanzig/config.php` – Board-Member-Liste wird weiterhin als Datenquelle genutzt

### Vorgehen
1. `search-docs` nutzen: `queries: ['policies', 'authorization', 'gates']` und `packages: ['laravel/framework']`
2. Prüfe wie `NostrUser` mit Laravel's Authorization-System zusammenspielt
3. Policies mit `php artisan make:policy` erstellen
4. Policy-Methoden implementieren (Board-Check-Logik zentralisieren)
5. Livewire-Components auf Policy-Aufrufe umstellen
6. Blade-Templates: `@can` / `@cannot` Directives nutzen statt inline `@if`
7. Pest Feature-Tests für jede Policy-Methode schreiben
8. `vendor/bin/pint --dirty` und `php artisan test --compact`

### Akzeptanzkriterien
- 3 Policy-Klassen existieren und sind registriert
- Board-Member-Check ist an EINER Stelle definiert (in Policy oder Helper)
- Livewire-Components nutzen `$this->authorize()` statt inline-Checks
- Blade-Templates nutzen `@can` / `@cannot` Directives
- Pest-Tests decken alle Policy-Methoden ab (allow & deny)
- Bestehende Funktionalität bleibt erhalten

resources/views/components/project-card.blade.php

@@ -78,10 +78,7 @@
 
                  <!-- Second row: Action buttons -->
                  <div class="flex flex-wrap gap-2">
-                     @if(
-                         ($currentPleb && $currentPleb->id === $project->einundzwanzig_pleb_id)
-                         || ($currentPleb && in_array($currentPleb->npub, config('einundzwanzig.config.current_board'), true))
-                          )
+                     @if(Illuminate\Support\Facades\Gate::forUser(App\Support\NostrAuth::user())->allows('delete', $project))
                          <flux:button
                              icon="trash"
                              size="xs"
@@ -89,7 +86,8 @@
                              wire:click="$dispatch('confirmDeleteProject', { id: {{ $project->id }} })">
                              Löschen
                          </flux:button>
-
+                     @endif
+                     @if(Illuminate\Support\Facades\Gate::forUser(App\Support\NostrAuth::user())->allows('update', $project))
                          <flux:button
                              icon="pencil"
                              size="xs"

resources/views/livewire/association/election/admin.blade.php

@@ -2,6 +2,7 @@
 
 use App\Models\Election;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Livewire\Attributes\Locked;
 use Livewire\Component;
 use swentel\nostr\Filter\Filter;
@@ -50,18 +51,31 @@ new class extends Component {
         $this->loadBoardEvents();
         $this->loadVotes();
         $this->loadBoardVotes();
+
+        $nostrUser = NostrAuth::user();
+        if ($nostrUser) {
+            $this->currentPubkey = $nostrUser->getPubkey();
+            $this->currentPleb = $nostrUser->getPleb();
+            $this->isAllowed = Gate::forUser($nostrUser)->allows('update', $this->election);
+        }
     }
 
     public function handleNostrLoggedIn(string $pubkey): void
     {
+        NostrAuth::login($pubkey);
+
         $this->currentPubkey = $pubkey;
         $this->currentPleb = \App\Models\EinundzwanzigPleb::query()
             ->where('pubkey', $pubkey)->first();
-        $this->isAllowed = (bool) $this->currentPleb;
+
+        $nostrUser = NostrAuth::user();
+        $this->isAllowed = $nostrUser && Gate::forUser($nostrUser)->allows('update', $this->election);
     }
 
     public function handleNostrLoggedOut(): void
     {
+        NostrAuth::logout();
+
         $this->currentPubkey = null;
         $this->currentPleb = null;
         $this->isAllowed = false;

resources/views/livewire/association/election/index.blade.php

@@ -3,6 +3,7 @@
 use App\Models\EinundzwanzigPleb;
 use App\Models\Election;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Livewire\Attributes\Locked;
 use Livewire\Component;
 
@@ -29,34 +30,31 @@ new class extends Component {
         $this->elections = Election::query()
             ->get()
             ->toArray();
-        if (NostrAuth::check()) {
-            $this->currentPubkey = NostrAuth::pubkey();
-            $logPubkeys = [
-                '0adf67475ccc5ca456fd3022e46f5d526eb0af6284bf85494c0dd7847f3e5033',
-                '430169631f2f0682c60cebb4f902d68f0c71c498fd1711fd982f052cf1fd4279',
-            ];
-            if (in_array($this->currentPubkey, $logPubkeys, true)) {
-                $this->isAllowed = true;
-            }
+
+        $nostrUser = NostrAuth::user();
+
+        if ($nostrUser) {
+            $this->currentPubkey = $nostrUser->getPubkey();
+            $this->isAllowed = Gate::forUser($nostrUser)->allows('update', Election::query()->first() ?? new Election);
         }
     }
 
     public function handleNostrLoggedIn(string $pubkey): void
     {
+        NostrAuth::login($pubkey);
+
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()
             ->where('pubkey', $pubkey)->first();
 
-        $logPubkeys = [
-            '0adf67475ccc5ca456fd3022e46f5d526eb0af6284bf85494c0dd7847f3e5033',
-            '430169631f2f0682c60cebb4f902d68f0c71c498fd1711fd982f052cf1fd4279',
-        ];
-
-        $this->isAllowed = in_array($pubkey, $logPubkeys, true);
+        $nostrUser = NostrAuth::user();
+        $this->isAllowed = $nostrUser && Gate::forUser($nostrUser)->allows('update', Election::query()->first() ?? new Election);
     }
 
     public function handleNostrLoggedOut(): void
     {
+        NostrAuth::logout();
+
         $this->currentPubkey = null;
         $this->currentPleb = null;
         $this->isAllowed = false;
@@ -66,6 +64,9 @@ new class extends Component {
     {
         $election = $this->elections[$index];
         $electionModel = Election::find($election['id']);
+
+        Gate::forUser(NostrAuth::user())->authorize('update', $electionModel);
+
         $electionModel->candidates = $election['candidates'];
         $electionModel->save();
     }

resources/views/livewire/association/election/show.blade.php

@@ -4,6 +4,7 @@ use App\Models\Election;
 use App\Models\EinundzwanzigPleb;
 use App\Models\Profile;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\RateLimiter;
 use Livewire\Attributes\Computed;
 use Livewire\Attributes\Locked;
@@ -197,6 +198,13 @@ new class extends Component {
         if ($this->election->end_time?->isPast() || ! config('services.voting')) {
             $this->isNotClosed = false;
         }
+
+        $nostrUser = NostrAuth::user();
+        if ($nostrUser) {
+            $this->currentPubkey = $nostrUser->getPubkey();
+            $this->currentPleb = $nostrUser->getPleb();
+            $this->isAllowed = Gate::forUser($nostrUser)->allows('vote', $this->election);
+        }
     }
 
     public function handleNostrLoggedIn(string $pubkey): void
@@ -211,10 +219,14 @@ new class extends Component {
             abort(429, 'Too many login attempts.');
         }
 
+        NostrAuth::login($pubkey);
+
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()
             ->where('pubkey', $pubkey)->first();
-        $this->isAllowed = (bool) $this->currentPleb;
+
+        $nostrUser = NostrAuth::user();
+        $this->isAllowed = $nostrUser && Gate::forUser($nostrUser)->allows('vote', $this->election);
     }
 
     public function handleNostrLoggedOut(): void
@@ -291,6 +303,8 @@ new class extends Component {
 
     public function vote($pubkey, $type, $board = false): void
     {
+        Gate::forUser(NostrAuth::user())->authorize('vote', $this->election);
+
         $executed = RateLimiter::attempt(
             'voting:'.request()->ip(),
             10,

resources/views/livewire/association/project-support/form/create.blade.php

@@ -2,6 +2,7 @@
 
 use App\Models\ProjectProposal;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\RateLimiter;
 use Livewire\Attributes\Layout;
 use Livewire\Attributes\Locked;
@@ -35,15 +36,15 @@ class extends Component
 
     public function mount(): void
     {
-        if (NostrAuth::check()) {
-            $currentPubkey = NostrAuth::pubkey();
-            $currentPleb = \App\Models\EinundzwanzigPleb::query()->where('pubkey', $currentPubkey)->first();
+        $nostrUser = NostrAuth::user();
 
-            if ($currentPleb && $currentPleb->association_status->value > 1 && $currentPleb->paymentEvents()->where('year', date('Y'))->where('paid', true)->exists()) {
-                $this->isAllowed = true;
-            }
+        if ($nostrUser && Gate::forUser($nostrUser)->allows('create', ProjectProposal::class)) {
+            $this->isAllowed = true;
+        }
 
-            if ($currentPleb && in_array($currentPleb->npub, config('einundzwanzig.config.current_board'), true)) {
+        if ($nostrUser) {
+            $pleb = $nostrUser->getPleb();
+            if ($pleb && in_array($pleb->npub, config('einundzwanzig.config.current_board'), true)) {
                 $this->isAdmin = true;
             }
         }
@@ -59,6 +60,8 @@ class extends Component
 
     public function save(): void
     {
+        Gate::forUser(NostrAuth::user())->authorize('create', ProjectProposal::class);
+
         $executed = RateLimiter::attempt(
             'project-proposal-create:'.request()->ip(),
             5,
@@ -82,8 +85,8 @@ class extends Component
         $projectProposal->description = $this->form['description'];
         $projectProposal->support_in_sats = (int) $this->form['support_in_sats'];
         $projectProposal->website = $this->form['website'];
-        $projectProposal->accepted = $this->form['accepted'];
-        $projectProposal->sats_paid = $this->form['sats_paid'];
+        $projectProposal->accepted = $this->isAdmin ? $this->form['accepted'] : false;
+        $projectProposal->sats_paid = $this->isAdmin ? $this->form['sats_paid'] : 0;
         $projectProposal->einundzwanzig_pleb_id = \App\Models\EinundzwanzigPleb::query()->where('pubkey', NostrAuth::pubkey())->first()->id;
         $projectProposal->save();
 

resources/views/livewire/association/project-support/form/edit.blade.php

@@ -2,6 +2,7 @@
 
 use App\Models\ProjectProposal;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\RateLimiter;
 use Livewire\Attributes\Layout;
 use Livewire\Attributes\Locked;
@@ -40,36 +41,29 @@ class extends Component
     {
         $this->project = ProjectProposal::query()->where('slug', $projectProposal)->firstOrFail();
 
-        if (NostrAuth::check()) {
-            $currentPubkey = NostrAuth::pubkey();
-            $currentPleb = \App\Models\EinundzwanzigPleb::query()->where('pubkey', $currentPubkey)->first();
+        $nostrUser = NostrAuth::user();
 
-            if (
-                (
-                    $currentPleb
-                    && $currentPleb->id === $this->project->einundzwanzig_pleb_id
-                )
-                || in_array($currentPleb->npub, config('einundzwanzig.config.current_board'))
-            ) {
-                $this->isAllowed = true;
-                $this->form = [
-                    'name' => $this->project->name,
-                    'description' => $this->project->description,
-                    'support_in_sats' => (string) $this->project->support_in_sats,
-                    'website' => $this->project->website ?? '',
-                    'accepted' => (bool) $this->project->accepted,
-                    'sats_paid' => $this->project->sats_paid,
-                ];
-            }
+        if ($nostrUser && Gate::forUser($nostrUser)->allows('update', $this->project)) {
+            $this->isAllowed = true;
+            $this->form = [
+                'name' => $this->project->name,
+                'description' => $this->project->description,
+                'support_in_sats' => (string) $this->project->support_in_sats,
+                'website' => $this->project->website ?? '',
+                'accepted' => (bool) $this->project->accepted,
+                'sats_paid' => $this->project->sats_paid,
+            ];
+        }
 
-            if ($currentPleb && in_array($currentPleb->npub, config('einundzwanzig.config.current_board'), true)) {
-                $this->isAdmin = true;
-            }
+        if ($nostrUser && Gate::forUser($nostrUser)->allows('accept', $this->project)) {
+            $this->isAdmin = true;
         }
     }
 
     public function deleteMainImage(): void
     {
+        Gate::forUser(NostrAuth::user())->authorize('update', $this->project);
+
         if ($this->project->getFirstMedia('main')) {
             $this->project->getFirstMedia('main')->delete();
         }
@@ -85,6 +79,8 @@ class extends Component
 
     public function update(): void
     {
+        Gate::forUser(NostrAuth::user())->authorize('update', $this->project);
+
         $executed = RateLimiter::attempt(
             'project-proposal-update:'.request()->ip(),
             5,
@@ -103,13 +99,16 @@ class extends Component
             'file' => 'nullable|file|mimes:jpeg,png,jpg,gif,webp|mimetypes:image/jpeg,image/png,image/gif,image/webp|max:10240',
         ]);
 
+        $nostrUser = NostrAuth::user();
+        $canAccept = $nostrUser && Gate::forUser($nostrUser)->allows('accept', $this->project);
+
         $this->project->update([
             'name' => $this->form['name'],
             'description' => $this->form['description'],
             'support_in_sats' => (int) $this->form['support_in_sats'],
             'website' => $this->form['website'],
-            'accepted' => $this->isAdmin ? (bool) $this->form['accepted'] : $this->project->accepted,
-            'sats_paid' => $this->isAdmin ? $this->form['sats_paid'] : $this->project->sats_paid,
+            'accepted' => $canAccept ? (bool) $this->form['accepted'] : $this->project->accepted,
+            'sats_paid' => $canAccept ? $this->form['sats_paid'] : $this->project->sats_paid,
         ]);
 
         if ($this->file) {

resources/views/livewire/association/project-support/index.blade.php

@@ -6,6 +6,7 @@ use App\Models\ProjectProposal;
 use App\Support\NostrAuth;
 use Flux\Flux;
 use Illuminate\Database\Eloquent\Collection;
+use Illuminate\Support\Facades\Gate;
 use Livewire\Attributes\Locked;
 use Livewire\Component;
 
@@ -77,6 +78,8 @@ new class extends Component {
     public function delete(): void
     {
         if ($this->projectToDelete) {
+            Gate::forUser(NostrAuth::user())->authorize('delete', $this->projectToDelete);
+
             $this->projectToDelete->delete();
             Flux::toast('Projektunterstützung gelöscht.');
             $this->loadProjects();
@@ -110,7 +113,7 @@ new class extends Component {
                 </form>
 
                 <!-- Add meetup button -->
-                @if($currentPleb && $currentPleb->association_status->value > 1 && $currentPleb->paymentEvents()->where('year', date('Y'))->where('paid', true)->exists())
+                @if(Gate::forUser(NostrAuth::user())->allows('create', App\Models\ProjectProposal::class))
                     <flux:button :href="route('association.projectSupport.create')" icon="plus" variant="primary">
                         Projekt einreichen
                     </flux:button>

resources/views/livewire/association/project-support/show.blade.php

@@ -4,6 +4,7 @@ use App\Livewire\Traits\WithNostrAuth;
 use App\Models\ProjectProposal;
 use App\Models\Vote;
 use App\Support\NostrAuth;
+use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\RateLimiter;
 use Livewire\Attributes\Locked;
 use Livewire\Component;
@@ -61,10 +62,14 @@ new class extends Component {
 
     public function handleApprove(): void
     {
-        if (! $this->currentPleb) {
+        $nostrUser = NostrAuth::user();
+
+        if (! $nostrUser || ! $nostrUser->getPleb()) {
             return;
         }
 
+        Gate::forUser($nostrUser)->authorize('create', [Vote::class, $this->projectProposal]);
+
         $executed = RateLimiter::attempt(
             'voting:'.request()->ip(),
             10,
@@ -86,10 +91,14 @@ new class extends Component {
 
     public function handleNotApprove(): void
     {
-        if (! $this->currentPleb) {
+        $nostrUser = NostrAuth::user();
+
+        if (! $nostrUser || ! $nostrUser->getPleb()) {
             return;
         }
 
+        Gate::forUser($nostrUser)->authorize('create', [Vote::class, $this->projectProposal]);
+
         $executed = RateLimiter::attempt(
             'voting:'.request()->ip(),
             10,