fix: allow passing embedding model (#30)

Co-authored-by: Shubham Naik <shub@memgpt.ai>

src/agent/create.ts

@@ -20,6 +20,7 @@ import { SYSTEM_PROMPT } from "./promptAssets";
 export async function createAgent(
   name = "letta-cli-agent",
   model = "anthropic/claude-sonnet-4-5-20250929",
+  embeddingModel  = "openai/text-embedding-3-small"
 ) {
   const client = await getClient();
 
@@ -139,6 +140,7 @@ export async function createAgent(
     agent_type: "letta_v1_agent" as AgentType,
     system: SYSTEM_PROMPT,
     name,
+    embedding: embeddingModel,
     model,
     context_window_limit: 200_000,
     tools: toolNames,