v1.5.0: Complete documentation rewrite - 50+ files with AlisaReactionBot style

- Box-style header comments (Project, Author, License) on every file
- Section headers using double-line box decorators
- Feature markers (// ---- FEATURE: XYZ ----) before every major function
- JSDoc comments for EVERY function with @param, @returns, @example
- Inline notes (NOTE, WARNING, TIP) for non-obvious logic
- Footer END markers on every module
- Matched code style to AlisaReactionBot repository
- All files now searchable by feature name via grep

Author: Shinei Nouzen <157171073+Shineii86@users.noreply.github.com>

src/extractors/azList.extractor.js

@@ -1,3 +1,20 @@
+/*
+ * ======= • ======= • ======= • ======= • =======• =======
+ * AniKatoAPI — azList.extractor.js
+ * Repository: https://github.com/Shineii86/AniKatoAPI
+ *
+ * @description
+ *   Extracts anime from A-Z listing pages with pagination.
+ *   Supports filtering by letter (a-z) or "all" for complete list.
+ *
+ * @exports
+ *   extractAzList
+ *
+ * @author  Shinei Nouzen
+ * @license MIT
+ * ======= • ======= • ======= • ======= • =======• =======
+ */
+
 import * as cheerio from "cheerio";
 import axios from "axios";
 import { headers } from "../configs/header.config.js";
@@ -5,13 +22,46 @@ import { URLS } from "../configs/dataUrl.js";
 import { extractPages } from "../helper/extractPages.helper.js";
 import { countPages } from "../helper/countPages.helper.js";
 
+// ══════════════════════════════════════════════════════════════
+// A-Z LIST EXTRACTION
+// ══════════════════════════════════════════════════════════════
+
+// ---- FEATURE: Extract anime from A-Z listing with pagination ----
+/**
+ * Fetches and parses anime from the A-Z listing page.
+ * Supports filtering by letter (a-z) or "all" for complete list.
+ *
+ * @param {string} letter - Letter to filter by (a-z) or "all" (default: "all")
+ * @param {number} page - Page number to fetch (default: 1)
+ * @returns {Promise<Object>} Object containing totalPages, letter, and data array
+ * @returns {number} return.totalPages - Total number of pages available
+ * @returns {string} return.letter - The letter filter used
+ * @returns {Array<Object>} return.data - Array of anime objects
+ * @returns {string} return.data[].slug - URL slug for the anime
+ * @returns {string} return.data[].poster - Poster image URL
+ * @returns {string} return.data[].title - English title
+ * @returns {string} return.data[].japaneseTitle - Japanese title
+ * @returns {number} return.data[].sub - Subbed episode count
+ * @returns {number} return.data[].dub - Dubbed episode count
+ * @returns {number} return.data[].total - Total episode count
+ * @returns {string} return.data[].type - Anime type (TV, Movie, etc.)
+ * @returns {string} return.data[].rating - Anime rating
+ *
+ * @example
+ *   const azList = await extractAzList("a", 1);
+ *   console.log(azList.letter); // "a"
+ *   console.log(azList.data[0].title); // First anime starting with "a"
+ */
 const extractAzList = async (letter = "all", page = 1) => {
   try {
+    // NOTE: URLS.azList generates the correct endpoint for the given letter
     const url = URLS.azList(letter);
     const $ = await extractPages(url, page);
     const totalPages = countPages($);
 
     const results = [];
+
+    // NOTE: Multiple selectors to handle different page layouts
     $(".film_list-wrap .flw-item, .film-detail, .item").each((i, el) => {
       const slug = $(el).find("a").attr("href")?.split("/watch/").pop() || "";
       const poster = $(el).find("img").attr("src") || "";
@@ -23,6 +73,7 @@ const extractAzList = async (letter = "all", page = 1) => {
       const type = $(el).find(".meta .inner .right, .fdi-item:nth-child(2)").text().trim() || "";
       const rating = $(el).find(".rating, .fdi-item:nth-child(3)").text().trim() || "";
 
+      // NOTE: Only include items with valid slugs
       if (slug) {
         results.push({
           slug,
@@ -44,4 +95,6 @@ const extractAzList = async (letter = "all", page = 1) => {
   }
 };
 
-export { extractAzList };
+export { extractAzList };
+
+// ══════════════════════════════════════════════════════════════ END: azList.extractor.js