refactor: all-in-one docker deployment with auto-tuned resources and per-mode compose templates

database/migrations/2026_04_19_000001_backfill_users_next_reset_at.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\Artisan;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * One-shot backfill of users.next_reset_at for legacy installs.
+ *
+ * Replaces the previous `reset:traffic --force` step in `xboard:update`,
+ * which had to run on every container start. Now it runs exactly once per
+ * database (Laravel migrations are tracked).
+ */
+return new class extends Migration {
+    public function up(): void
+    {
+        if (!Schema::hasColumn('v2_user', 'next_reset_at')) {
+            return;
+        }
+
+        Artisan::call('reset:traffic', ['--fix-null' => true]);
+    }
+
+    public function down(): void
+    {
+        // Backfill is non-destructive; nothing to roll back.
+    }
+};