embed max tokens, fix shutdown race condition

src/models/gpt.js

@@ -54,6 +54,8 @@ export class GPT {
     }
 
     async embed(text) {
+        if (text.length > 8191)
+            text = text.slice(0, 8191);
         const embedding = await this.openai.embeddings.create({
             model: this.model_name || "text-embedding-3-small",
             input: text,

src/server/mind_server.js

@@ -111,7 +111,9 @@ export function createMindServer(port = 8080) {
             for (let manager of Object.values(agentManagers)) {
                 manager.emit('shutdown');
             }
+            setTimeout(() => {
                 process.exit(0);
+            }, 2000);
         });
 
     });