first version

app/Http/Controllers/Mini/StoreController.php

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+<?php
+
+namespace App\Http\Controllers\Mini;
+
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Modules\AnnoRoute\Attribute\PutRoute;
+use Modules\AnnoRoute\Attribute\RequestAttribute;
+
+/**
+ * 小程序门店设置（回款周期自配置，影响对账单应结算日期）
+ */
+#[RequestAttribute('/mini', 'mini', authGuard: 'users')]
+class StoreController extends BaseMiniController
+{
+    /** 修改回款周期（≥0，无上限） */
+    #[PutRoute('/store/paymentCycle', authorize: true)]
+    public function paymentCycle(Request $request): JsonResponse
+    {
+        $data = $request->validate([
+            'payment_cycle_days' => 'required|integer|min:0',
+        ], [
+            'payment_cycle_days.required' => '回款周期不能为空',
+            'payment_cycle_days.integer' => '回款周期必须为整数',
+            'payment_cycle_days.min' => '回款周期不能小于 0',
+        ]);
+
+        $user = $this->currentUser($request);
+        $store = $this->ensureStoreBound($user);
+
+        $store->payment_cycle_days = (int) $data['payment_cycle_days'];
+        $store->save();
+
+        return $this->success(['payment_cycle_days' => $store->payment_cycle_days], '回款周期已更新');
+    }
+}