feat(nginx-log): 新增 6 张表 phinx migration + Scheme + model

database/migrations/20260726100005_nginx_stat_referer.php

@@ -0,0 +1,24 @@
+<?php
+
+use think\migration\Migrator;
+
+/**
+ * nginx 日志分析 - 按 Referer 来源域名聚合统计表
+ *
+ * 每个统计日 + 来源域名一行，记录 PV/UV，用于外链来源排行。
+ */
+class NginxStatReferer extends Migrator
+{
+    public function change()
+    {
+        $table = $this->table('nginx_stat_referer')
+            ->setComment('nginx 按 Referer 来源域名聚合统计')
+            ->addColumn('stat_date', 'integer', ['limit' => 11, 'null' => false, 'comment' => '统计日期(YYYYMMDD)', 'signed' => false])
+            ->addColumn('referer_domain', 'string', ['limit' => 255, 'null' => false, 'comment' => 'Referer 来源域名(direct/unknown)'])
+            ->addColumn('pv', 'integer', ['limit' => 11, 'default' => 0, 'comment' => '页面浏览量'])
+            ->addColumn('uv', 'integer', ['limit' => 11, 'default' => 0, 'comment' => '独立访客数'])
+            ->addIndex(['stat_date', 'referer_domain'], ['unique' => true, 'name' => 'uniq_date_referer'])
+            ->addIndex(['stat_date'], ['name' => 'idx_stat_date'])
+            ->create();
+    }
+}