补充金币发放/赠送接口的中文验证提示语，防止前端显示 validation.max.numeric

app/Http/Controllers/AdminCommandController.php

@@ -430,6 +430,11 @@ class AdminCommandController extends Controller
             'username' => 'required|string',
             'room_id' => 'required|integer',
             'amount' => 'required|integer|min:1|max:999999999',
+        ], [
+            'amount.max' => '单次发放金币不能超过 999999999',
+            'amount.min' => '发放金币至少为 1',
+            'amount.integer' => '金币数量必须是整数',
+            'amount.required' => '请输入要发放的金币数量',
         ]);
 
         $admin = Auth::user();

app/Http/Controllers/ChatController.php

@@ -1157,6 +1157,11 @@ class ChatController extends Controller
             'to_user' => 'required|string',
             'room_id' => 'required|integer',
             'amount' => 'required|integer|min:1|max:999999999',
+        ], [
+            'amount.max' => '单次赠送金币不能超过 999999999',
+            'amount.min' => '单次赠送金币至少为 1',
+            'amount.integer' => '金币数量必须是整数',
+            'amount.required' => '请输入要赠送的金币数量',
         ]);
 
         $sender = Auth::user();