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/Feature.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Config;
+
+use CodeIgniter\Config\BaseConfig;
+
+/**
+ * Enable/disable backward compatibility breaking features.
+ */
+class Feature extends BaseConfig
+{
+    /**
+     * Use improved new auto routing instead of the legacy version.
+     */
+    public bool $autoRoutesImproved = true;
+
+    /**
+     * Use filter execution order in 4.4 or before.
+     */
+    public bool $oldFilterOrder = false;
+
+    /**
+     * The behavior of `limit(0)` in Query Builder.
+     *
+     * If true, `limit(0)` returns all records. (the behavior of 4.4.x or before in version 4.x.)
+     * If false, `limit(0)` returns no records. (the behavior of 3.1.9 or later in version 3.x.)
+     */
+    public bool $limitZeroAsAll = true;
+
+    /**
+     * Use strict location negotiation.
+     *
+     * By default, the locale is selected based on a loose comparison of the language code (ISO 639-1)
+     * Enabling strict comparison will also consider the region code (ISO 3166-1 alpha-2).
+     */
+    public bool $strictLocaleNegotiation = false;
+}