✨ feat(aniwatch): Improves title matching logic

- Enhances title matching accuracy when fetching Aniwatch IDs.
- Prioritizes user-preferred titles and falls back to English titles.
- Ensures only one fetch call is made per title if both english and userPreferred title are same.
- Adds a score threshold to filter low-quality matches.
- Fixes a bug where the episode list was not being returned.

src/controllers/episodes/getByAniListId/index.ts

@@ -81,18 +81,23 @@ export function fetchEpisodes(
 app.openapi(route, async (c) => {
   const aniListId = Number(c.req.param("aniListId"));
 
-  const { result: episodes, errorOccurred } = await fetchEpisodes(
+  const { result, errorOccurred } = await fetchEpisodes(
     aniListId,
     env(c, "workerd"),
   );
 
-  if (errorOccurred) {
+  if (errorOccurred || !result) {
     return c.json(ErrorResponse, { status: 500 });
   }
 
+  const { episodes, providerId } = result;
+  if (!episodes || episodes.length === 0) {
+    return c.json(ErrorResponse, { status: 404 });
+  }
+
   return c.json({
     success: true,
-    result: episodes ?? [],
+    result: { providerId, episodes },
   });
 });