Upgrade Letta Code SDK to 0.0.5 (#117)

Breaking API changes in SDK 0.0.5 require:
- Use createAgent() for new agents with custom systemPrompt and memory
- Remove systemPrompt from createSession()/resumeSession() options

Fixes #116

Co-authored-by: letta-code <248085862+letta-code@users.noreply.github.com>
Co-authored-by: Cameron <cpfiffer@users.noreply.github.com>

package-lock.json

@@ -12,7 +12,7 @@
         "@clack/prompts": "^0.11.0",
         "@hapi/boom": "^10.0.1",
         "@letta-ai/letta-client": "^1.7.7",
-        "@letta-ai/letta-code-sdk": "^0.0.4",
+        "@letta-ai/letta-code-sdk": "^0.0.5",
         "@types/express": "^5.0.6",
         "@types/node": "^25.0.10",
         "@types/node-schedule": "^2.1.8",
@@ -1297,9 +1297,9 @@
       }
     },
     "node_modules/@letta-ai/letta-code-sdk": {
-      "version": "0.0.4",
-      "resolved": "https://registry.npmjs.org/@letta-ai/letta-code-sdk/-/letta-code-sdk-0.0.4.tgz",
-      "integrity": "sha512-ipNzKgZA0VF5npOBuQhL9wqQbvhzsEuSXhawqen/jdorSonIEnwFw7OvpVcVvxmah9+5yEk1KvD5ymrVJWu08A==",
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/@letta-ai/letta-code-sdk/-/letta-code-sdk-0.0.5.tgz",
+      "integrity": "sha512-mBGZ9RFd2d4p4RffRctfE3yvEjM5AndIaXfqus6Nu3TNJcOs40c/AsdeeAFN61LLQ7gpqSea+Dh4/PE+zR+ABQ==",
       "license": "Apache-2.0",
       "dependencies": {
         "@letta-ai/letta-code": "latest"