feat(world): add persistent citizen simulation with needs, jobs, and social features

- Adds Character model with survival needs (hunger, thirst, energy) and state machine
- Implements city:tick world ticker for offline progression every minute
- Adds city territory expansion and building construction system
- Introduces job economy, inventory, and transaction audit trail
- Adds social graph (friends, marriage, children) and character chat
- Implements admin approval workflow for new registrations
- Adds hospital admission system for traffic accidents
- Includes comprehensive feature tests and world seeders

database/factories/CityFactory.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\City;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Str;
+
+/**
+ * @extends Factory<City>
+ */
+class CityFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        $name = fake()->unique()->city();
+
+        return [
+            'name' => $name,
+            'slug' => Str::slug($name).'-'.fake()->unique()->numberBetween(1, 9999),
+            'bounds_min_x' => -80,
+            'bounds_max_x' => 80,
+            'bounds_min_z' => -80,
+            'bounds_max_z' => 80,
+            'is_active' => false,
+            'expansions' => 0,
+        ];
+    }
+}