[Bug] Blob Storage getMessages() returns empty [] — URL-encode & Message ID mismatch

[ipzoone]

Describe the bug

context.agent.store.getMessages() returns empty array [] even though message data exists in Blob Storage.

The index layer and content layer are out of sync due to:

1. URL-encoding mismatch in path (%3A vs :)
2. Different Message ID between index pointer and actual content files

To Reproduce

1. Create LangGraph agent with conversation memory using Blob SDK
2. Send some messages
3. Call getMessages() → returns []
4. Check Blob Storage console → messages actually exist in conversations/.../messages/

Evidence

Index entry (from message_index):

{
  "conversationId": "chat:budi123:javascript-basics",
  "key": "conversations/chat%3Abudi123%3Ajavascript-basics/messages/1785902147491_msg_cb128d2767af4c81bfe573a084b0e642",
  "messageId": "msg_cb128d2767af4c81bfe573a084b0e642",
  "createdAt": 1785902147491
}

[clavie99]

收到，我们优化下这个问题；您这边可以先把key encode一下，这样可以避免这个问题