feat: 增强环境配置与开发服务，支持局域网访问及币种管理

app/Http/Requests/Admin/AdminCurrencyStoreRequest.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Http\Requests\Admin;
+
+use Illuminate\Validation\Rule;
+use Illuminate\Foundation\Http\FormRequest;
+
+final class AdminCurrencyStoreRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'code' => ['required', 'string', 'max:16', 'regex:/^[A-Z0-9]{1,16}$/', Rule::unique('currencies', 'code')],
+            'name' => ['required', 'string', 'max:64'],
+            'decimal_places' => ['sometimes', 'integer', 'min:0', 'max:12'],
+            'is_enabled' => ['sometimes', 'boolean'],
+            'is_bettable' => ['sometimes', 'boolean'],
+        ];
+    }
+
+    protected function prepareForValidation(): void
+    {
+        if ($this->has('code')) {
+            $this->merge([
+                'code' => strtoupper(substr(trim((string) $this->input('code')), 0, 16)),
+            ]);
+        }
+    }
+}