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/category.extractor.js

@@ -1,11 +1,61 @@
+/*
+ * ======= • ======= • ======= • ======= • =======• =======
+ * AniKatoAPI — category.extractor.js
+ * Repository: https://github.com/Shineii86/AniKatoAPI
+ *
+ * @description
+ *   Extracts anime filtered by category (genre, type, status, etc.).
+ *   Supports multiple category types with automatic URL detection.
+ *
+ * @exports
+ *   extractCategory
+ *
+ * @author  Shinei Nouzen
+ * @license MIT
+ * ======= • ======= • ======= • ======= • =======• =======
+ */
+
 import * as cheerio from "cheerio";
 import { headers } from "../configs/header.config.js";
 import { URLS } from "../configs/dataUrl.js";
 import { countPages } from "../helper/countPages.helper.js";
 import { extractPages } from "../helper/extractPages.helper.js";
 
+// ══════════════════════════════════════════════════════════════
+// CATEGORY FILTER EXTRACTION
+// ══════════════════════════════════════════════════════════════
+
+// ---- FEATURE: Extract anime filtered by category with pagination ----
+/**
+ * Fetches and parses anime filtered by category.
+ * Automatically detects category type (genre, type, status) from the input.
+ *
+ * @param {string} category - Category to filter by (e.g., "genre/action", "type/tv", "status/ongoing")
+ * @param {number} page - Page number to fetch (default: 1)
+ * @returns {Promise<Object>} Object containing totalPages and data array
+ * @returns {number} return.totalPages - Total number of pages available
+ * @returns {Array<Object>} return.data - Array of anime objects
+ * @returns {string} return.data[].slug - URL slug for the anime
+ * @returns {string} return.data[].animeId - Internal anime ID
+ * @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 actionAnime = await extractCategory("genre/action", 1);
+ *   console.log(actionAnime.data[0].title); // First action anime
+ *
+ *   const tvAnime = await extractCategory("type/tv", 1);
+ *   console.log(tvAnime.data[0].title); // First TV anime
+ */
 const extractCategory = async (category, page = 1) => {
   try {
+    // NOTE: Category type is determined by prefix in the category string
     let url;
     if (category.startsWith("genre/")) {
       url = URLS.genre(category.replace("genre/", ""));
@@ -14,6 +64,7 @@ const extractCategory = async (category, page = 1) => {
     } else if (category.startsWith("status/")) {
       url = URLS.status(category.replace("status/", ""));
     } else {
+      // NOTE: Fallback to direct URL construction for unknown category types
       url = `${URLS.home}/${category}`;
     }
 
@@ -21,6 +72,8 @@ const extractCategory = async (category, page = 1) => {
     const totalPages = countPages($);
 
     const results = [];
+
+    // NOTE: The list items are contained in #list-items container
     $("#list-items > .item").each((i, el) => {
       const slug = $(el).find("a").attr("href")?.split("/watch/").pop() || "";
       const poster = $(el).find(".ani.poster.tip > a > img").attr("src") || "";
@@ -33,6 +86,7 @@ const extractCategory = async (category, page = 1) => {
       const type = $(el).find(".info .meta .m-item:nth-child(2) label").text().trim() || "";
       const rating = $(el).find(".info .meta .m-item.rated span").text().trim() || "";
 
+      // NOTE: Only include items with valid slugs
       if (slug) {
         results.push({
           slug,
@@ -55,4 +109,6 @@ const extractCategory = async (category, page = 1) => {
   }
 };
 
-export { extractCategory };
+export { extractCategory };
+
+// ══════════════════════════════════════════════════════════════ END: category.extractor.js