🔒 Add Nostr authentication support with custom guard and user provider

🛠️ Integrate Nostr auth across relevant components and views
📦 Update config, routes, and service provider for Nostr auth

app/Livewire/Traits/WithNostrAuth.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Livewire\Traits;
+
+use App\Support\NostrAuth;
+use Livewire\Attributes\On;
+
+trait WithNostrAuth
+{
+    public ?string $currentPubkey = null;
+    public ?object $currentPleb = null;
+    public bool $isAllowed = false;
+    public bool $canEdit = false;
+
+    #[On('nostrLoggedIn')]
+    public function handleNostrLogin(string $pubkey): void
+    {
+        NostrAuth::login($pubkey);
+
+        $this->currentPubkey = $pubkey;
+        $this->currentPleb = \App\Models\EinundzwanzigPleb::query()
+            ->where('pubkey', $pubkey)
+            ->first();
+
+        if ($this->currentPleb && in_array($this->currentPleb->npub, config('einundzwanzig.config.current_board'), true)) {
+            $this->canEdit = true;
+        }
+
+        $this->isAllowed = true;
+    }
+
+    #[On('nostrLoggedOut')]
+    public function handleNostrLogout(): void
+    {
+        NostrAuth::logout();
+
+        $this->isAllowed = false;
+        $this->currentPubkey = null;
+        $this->currentPleb = null;
+        $this->canEdit = false;
+    }
+
+    public function mountNostrAuth(): void
+    {
+        if ($user = NostrAuth::user()) {
+            $this->currentPubkey = $user->getPubkey();
+            $this->currentPleb = $user->getPleb();
+            $this->isAllowed = true;
+
+            if ($this->currentPleb && in_array($this->currentPleb->npub, config('einundzwanzig.config.current_board'), true)) {
+                $this->canEdit = true;
+            }
+        }
+    }
+}