fix: resolve null values in stream server endpoints

- Fix extractServerList JSON parsing: fetchWithMirror returns raw text but code treated it as parsed object, causing Cheerio to parse JSON string as HTML resulting in empty server arrays
- Fix extractMapperServers JSON parsing: same raw text issue caused data processing loop to be skipped, returning empty arrays
- Fix streamInfo controller to return 404 with error message when stream URL is null instead of silently returning null values
- Fix server list controller to use proper TTL and handle empty results
- Fix JSON.parse error handling in episodeList and episodeListAjax extractors
- Update CHANGELOG.md with v2.2.1 bug fixes

src/extractors/episodeList.extractor.js

@@ -61,7 +61,11 @@ const extractEpisodeList = async (slugOrId) => {
         headers: { "X-Requested-With": "XMLHttpRequest" }
       });
 
-      const ajaxParsed = typeof ajaxRaw === "string" ? JSON.parse(ajaxRaw) : ajaxRaw;
+      // NOTE: Parse JSON response first — fetchWithMirror returns raw text by default
+      let ajaxParsed = ajaxRaw;
+      if (typeof ajaxRaw === "string") {
+        try { ajaxParsed = JSON.parse(ajaxRaw); } catch { ajaxParsed = {}; }
+      }
       const ajaxHtml = ajaxParsed?.result || "";
       const $ep = cheerio.load(ajaxHtml);
 

src/extractors/episodeListAjax.extractor.js

@@ -55,7 +55,10 @@ const extractEpisodeListAjax = async (animeId, style = "", vrf = "") => {
     });
 
     // NOTE: Response is JSON {status, result} where result is HTML
-    const parsed = typeof raw === "string" ? JSON.parse(raw) : raw;
+    let parsed = raw;
+    if (typeof raw === "string") {
+      try { parsed = JSON.parse(raw); } catch { parsed = {}; }
+    }
     const html = parsed?.result || "";
     const $ = cheerio.load(html);
 

src/extractors/streamInfo.extractor.js

@@ -110,7 +110,12 @@ const extractServerList = async (episodeIds, watchSlug = null) => {
       headers: { "X-Requested-With": "XMLHttpRequest" }
     });
 
-    const html = typeof raw === "string" ? raw : (raw?.result || "");
+    // NOTE: Parse JSON response first — fetchWithMirror returns raw text by default
+    let parsed = raw;
+    if (typeof raw === "string") {
+      try { parsed = JSON.parse(raw); } catch { parsed = {}; }
+    }
+    const html = parsed?.result || "";
     const $ = cheerio.load(html);
 
     const servers = [];
@@ -165,7 +170,13 @@ const extractMapperServers = async (malId, slug, timestamp) => {
     if (!Number.isFinite(Number(timestamp))) throw new Error("Invalid timestamp");
 
     const path = `/ajax/mapper/${encodeURIComponent(malId)}/${encodeURIComponent(slug)}/${encodeURIComponent(timestamp)}`;
-    const { data } = await fetchWithMirror(path);
+    const { data: rawData } = await fetchWithMirror(path);
+
+    // NOTE: Parse JSON response first — fetchWithMirror returns raw text by default
+    let data = rawData;
+    if (typeof rawData === "string") {
+      try { data = JSON.parse(rawData); } catch { data = {}; }
+    }
 
     const servers = [];