Sách Giáo Khoa Việt Nam - sachgiaokhoa.org

CodeIgniter 4 website:
- Catalog 999 SGK (lớp 1-12) từ API, lọc theo lớp/môn/NXB, tìm kiếm
- Trang chủ grouped browse (bậc học -> lớp -> môn, ưu tiên môn quan trọng)
- Chi tiết sách: metadata đầy đủ, cover nghệ thuật /thumb/{W}x{H}/
- Đọc online qua gate captcha + countdown, PDF viewer pdf.js
- Download: captcha + token một lần + auto cache-bust version
- Tự đồng bộ catalog/cover khi API thay đổi (refresh:catalog)
- Legal: DMCA, miễn trừ trách nhiệm, điều khoản, bảo mật, liên hệ

app/Config/Services.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Config;
+
+use CodeIgniter\Config\BaseService;
+
+/**
+ * Services Configuration file.
+ *
+ * Services are simply other classes/libraries that the system uses
+ * to do its job. This is used by CodeIgniter to allow the core of the
+ * framework to be swapped out easily without affecting the usage within
+ * the rest of your application.
+ *
+ * This file holds any application-specific services, or service overrides
+ * that you might need. An example has been included with the general
+ * method format you should use for your service methods. For more examples,
+ * see the core Services file at system/Config/Services.php.
+ */
+class Services extends BaseService
+{
+    /*
+     * public static function example($getShared = true)
+     * {
+     *     if ($getShared) {
+     *         return static::getSharedInstance('example');
+     *     }
+     *
+     *     return new \CodeIgniter\Example();
+     * }
+     */
+}