🔒 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/Providers/NostrAuthServiceProvider.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Providers;
+
+use App\Auth\NostrSessionGuard;
+use App\Auth\NostrUserProvider;
+use Illuminate\Foundation\Application;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\ServiceProvider;
+
+class NostrAuthServiceProvider extends ServiceProvider
+{
+    public function boot(): void
+    {
+        Auth::provider('nostr', function (Application $app, array $config) {
+            return new NostrUserProvider();
+        });
+
+        Auth::extend('nostr-session', function (Application $app, string $name, array $config) {
+            $provider = Auth::createUserProvider($config['provider']);
+
+            return new NostrSessionGuard(
+                $name,
+                $provider,
+                $app['session.store'],
+                $app['request']
+            );
+        });
+    }
+}