feat: add NerveService and nerve regen scheduled commands

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Console/Commands/Game/ProcessNerveRegen.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Console\Commands\Game;
+
+use App\Models\Character;
+use App\Services\Game\NerveService;
+use Illuminate\Console\Command;
+
+class ProcessNerveRegen extends Command
+{
+    protected $signature = 'game:nerve-regen';
+    protected $description = 'Regenerate nerve for all active characters';
+
+    public function handle(NerveService $nerveService): void
+    {
+        $this->info('Starting nerve regeneration...');
+
+        $characters = Character::where('nerve', '<', \DB::raw('max_nerve'))
+            ->where('status', 'active')
+            ->get();
+
+        $count = $characters->count();
+        $this->info("Regenerating nerve for {$count} characters...");
+
+        foreach ($characters as $character) {
+            $nerveService->regenerate($character);
+        }
+
+        $this->info('Nerve regeneration completed!');
+    }
+}