Add wallet auto-withdraw threshold support for Ladill Mini.

Store per-user auto-withdraw amounts, expose them via the wallet API, and process withdrawals when balances reach the configured threshold after payments or on a schedule.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Console/Commands/ProcessAutoWithdrawals.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Console\Commands;
+
+use App\Services\Mini\AutoWithdrawService;
+use Illuminate\Console\Command;
+
+class ProcessAutoWithdrawals extends Command
+{
+    protected $signature = 'mini:process-auto-withdrawals';
+
+    protected $description = 'Withdraw wallet balances that have reached each user\'s auto-withdraw threshold.';
+
+    public function handle(AutoWithdrawService $autoWithdraw): int
+    {
+        $count = $autoWithdraw->processAll();
+        $this->info("Processed {$count} auto-withdrawal(s).");
+
+        return self::SUCCESS;
+    }
+}