Use local Whisper compose stack

src/session/store.ts

@@ -56,7 +56,10 @@ export class SessionStore {
     const stmt = this.db.prepare(
       'INSERT INTO messages (session_id, role, content, metadata) VALUES (?, ?, ?, ?)',
     );
-    stmt.run(sessionId, message.role, message.content, metadata ? JSON.stringify(metadata) : null);
+    const contentString = typeof message.content === 'string'
+      ? message.content
+      : JSON.stringify(message.content);
+    stmt.run(sessionId, message.role, contentString, metadata ? JSON.stringify(metadata) : null);
   }
 
   getMessages(sessionId: string): Message[] {
@@ -84,7 +87,10 @@ export class SessionStore {
         'INSERT INTO messages (session_id, role, content, metadata) VALUES (?, ?, ?, ?)',
       );
       for (const msg of messages) {
-        insert.run(sessionId, msg.role, msg.content, null);
+        const contentString = typeof msg.content === 'string'
+          ? msg.content
+          : JSON.stringify(msg.content);
+        insert.run(sessionId, msg.role, contentString, null);
       }
     });
     transaction();