fix: Full diagnostic sweep — bugs, dead code, unused imports, docs accuracy

Code fixes:
- seasons/watchOrder: Remove dead ternary (both branches identical)
- mirror.helper: Remove redundant ternary (both branches identical)
- topAnimeRankings: Fix JSDoc (day/week/month, not top/newest)
- apiRoutes: Fix proxy domain validation (exact match, not includes)
- apiRoutes: Fix proxy .m3u8 check (pathname, not hostname)
- pagination: Fix totalItems calculation (was overestimating)
- server.js: Remove dead has404File variable
- server.js: Remove duplicate /api/cache/stats route
- server.js: Remove unused getCacheStats import

Unused imports removed:
- animeInfo: URLS from dataUrl.js
- episodeList: headers from header.config.js
- episodeListAjax: axios
- trending: URLS from dataUrl.js
- trendingSidebar: URLS from dataUrl.js
- upcomingAnime: parseListItems
- watchPage: URLS, BASE_URL from dataUrl.js

Docs fixes:
- README: 33->38 endpoints, 24->28 controllers, 26->28 extractors
- README: Cache TTL 5min->per-endpoint, Timeout 15s->30s
- docs/index.md: 33->38 endpoints
- architecture.md: LRU cache strategy, remove stale cookie-parser
- agents: compression version, extractor/controller counts
- agents: domain typo, stale CORS dep, version badge

src/extractors/animeInfo.extractor.js

@@ -17,7 +17,6 @@
  */
 
 import * as cheerio from "cheerio";
-import { URLS } from "../configs/dataUrl.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 
 // ══════════════════════════════════════════════════════════════

src/extractors/episodeList.extractor.js

@@ -17,8 +17,6 @@
  */
 
 import * as cheerio from "cheerio";
-import { headers } from "../configs/header.config.js";
-import { URLS, BASE_URL } from "../configs/dataUrl.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 
 // ══════════════════════════════════════════════════════════════

src/extractors/episodeListAjax.extractor.js

@@ -17,7 +17,6 @@
  */
 
 import * as cheerio from "cheerio";
-import axios from "axios";
 import { headers } from "../configs/header.config.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 

src/extractors/seasons.extractor.js

@@ -40,7 +40,7 @@ import { fetchWithMirror } from "../helper/mirror.helper.js";
  */
 const extractSeasons = async (slugOrId) => {
   try {
-    const path = /^\d+$/.test(slugOrId) ? `/watch/${slugOrId}` : `/watch/${slugOrId}`;
+    const path = `/watch/${slugOrId}`;
     const { data } = await fetchWithMirror(path);
 
     const html = typeof data === "string" ? data : String(data);

src/extractors/topAnimeRankings.extractor.js

@@ -28,7 +28,7 @@ import { fetchWithMirror } from "../helper/mirror.helper.js";
  * Fetches and parses the top anime rankings from the homepage.
  * Supports switching between "top" (all-time) and "newest" rankings.
  *
- * @param {string} sort - Ranking sort mode: "top" or "newest" (default: "top")
+ * @param {string} sort - Ranking sort mode: "day", "week", or "month" (default: "day")
  * @returns {Promise<Array<Object>>} Array of ranked anime objects
  * @returns {number} return[].rank - Ranking position (1-9)
  * @returns {string} return[].slug - URL slug for the anime

src/extractors/trending.extractor.js

@@ -16,7 +16,6 @@
  */
 
 import * as cheerio from "cheerio";
-import { URLS } from "../configs/dataUrl.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 
 // ══════════════════════════════════════════════════════════════

src/extractors/trendingSidebar.extractor.js

@@ -16,7 +16,6 @@
  */
 
 import * as cheerio from "cheerio";
-import { URLS } from "../configs/dataUrl.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 
 // ══════════════════════════════════════════════════════════════

src/extractors/upcomingAnime.extractor.js

@@ -17,7 +17,6 @@
 
 import * as cheerio from "cheerio";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
-import { parseListItems } from "../helper/parseListItem.helper.js";
 
 // ══════════════════════════════════════════════════════════════
 // UPCOMING ANIME EXTRACTION

src/extractors/watchOrder.extractor.js

@@ -40,7 +40,7 @@ import { fetchWithMirror } from "../helper/mirror.helper.js";
  */
 const extractWatchOrder = async (slugOrId) => {
   try {
-    const path = /^\d+$/.test(slugOrId) ? `/watch/${slugOrId}` : `/watch/${slugOrId}`;
+    const path = `/watch/${slugOrId}`;
     const { data } = await fetchWithMirror(path);
 
     const html = typeof data === "string" ? data : String(data);

src/extractors/watchPage.extractor.js

@@ -16,7 +16,6 @@
  */
 
 import * as cheerio from "cheerio";
-import { URLS, BASE_URL } from "../configs/dataUrl.js";
 import { fetchWithMirror } from "../helper/mirror.helper.js";
 
 // ══════════════════════════════════════════════════════════════