Added semantic episode searching

packages/orchestration-service/src/services/memory.js

@@ -40,9 +40,17 @@ async function createEpisode(sessionId, userMessage, aiResponse, tokenCount) {
     return res.json();
 }
 
+async function getEpisodeById(episodeId) {
+    const res = await (`${BASE_URL}/episodes/${episodeId}`);
+    if (res.status === 404) return null;
+    if (!res.ok) throw new Error(`Failed to fetch episode: ${res.status}`);
+    return res.json();
+}
+
 module.exports = {
     getSessionByExternalId,
     createSession,
     getRecentEpisodes,
-    createEpisode
+    createEpisode,
+    getEpisodeById
 }