feat: create route to fetch episodes for a title

Summary:

Test Plan:

src/index.ts

@@ -13,6 +13,12 @@ app.route(
   "/title",
   await import("~/controllers/title").then((controller) => controller.default),
 );
+app.route(
+  "/episodes",
+  await import("~/controllers/episodes").then(
+    (controller) => controller.default,
+  ),
+);
 app.route(
   "/search",
   await import("~/controllers/search").then((controller) => controller.default),