feat: add Currency model and migration

Author: SlimDeluxe

database/migrations/2025_07_29_133427_create_currencies_table.php

@@ -0,0 +1,23 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::create('world_currencies', function (Blueprint $table) {
+            $table->string('id', 3)->primary();
+            $table->string('name');
+            $table->string('is_active');
+            $table->timestamps();
+            $table->softDeletes();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('world_currencies');
+    }
+};

src/Models/Currency.php

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+<?php
+
+namespace Eclipse\World\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class Currency extends Model
+{
+    use SoftDeletes;
+
+    protected $table = 'world_currencies';
+
+    protected $keyType = 'string';
+
+    public $incrementing = false;
+
+    protected $fillable = [
+        'name',
+        'is_active',
+    ];
+}