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/controllers/seasons.controller.js

@@ -1,20 +1,56 @@
+/*
+ * ======= • ======= • ======= • ======= • =======• =======
+ * AniKatoAPI — seasons.controller.js
+ * Repository: https://github.com/Shineii86/AniKatoAPI
+ *
+ * @description
+ *   Controller for anime season information. Returns season data
+ *   for a specific anime including related seasons and episodes.
+ *   Requires an anime ID as a route parameter.
+ *
+ * @exports
+ *   getSeasons - Express route handler for GET /api/seasons/:id
+ *
+ * @author  Shinei Nouzen
+ * @license MIT
+ * ======= • ======= • ======= • ======= • =======• =======
+ */
+
 import { extractSeasons } from "../extractors/seasons.extractor.js";
 import { getCache, setCache } from "../helper/cache.helper.js";
 
+// ══════════════════════════════════════════════════════════════
+// CONTROLLER: SEASONS
+// ══════════════════════════════════════════════════════════════
+
+// ---- FEATURE: Anime seasons endpoint ----
+/**
+ * Handles GET /api/seasons/:id requests. Returns season information
+ * for the specified anime.
+ *
+ * @param {object} req - Express request object
+ * @param {string} req.params.id - Anime ID
+ * @param {object} res - Express response object
+ * @param {Function} next - Express next middleware function
+ * @returns {void} Sends JSON response with season data
+ *
+ * @example
+ *   GET /api/seasons/12345
+ *   Response: { success: true, results: { seasons, ... } }
+ *
+ * @throws {400} If anime ID is not provided
+ */
 const getSeasons = async (req, res, next) => {
   try {
     const { id } = req.params;
-
     if (!id) {
       return res.status(400).json({ success: false, message: "Anime ID is required" });
     }
-
     const cacheKey = `seasons_${id}`;
     const cached = getCache(cacheKey);
     if (cached) {
       return res.json({ success: true, results: cached });
     }
-
     const data = await extractSeasons(id);
     setCache(cacheKey, data);
     res.json({ success: true, results: data });
@@ -23,4 +59,6 @@ const getSeasons = async (req, res, next) => {
   }
 };
 
-export { getSeasons };
+export { getSeasons };
+
+// ══════════════════════════════════════════════════════════════ END: seasons.controller.js