Bug: 'Load older messages' does not load any previous messages

[touch2be]

Problem

Clicking the "Load older messages" button does not load any older messages. Nothing changes in the chat after clicking it.

Expected Behavior

When the user clicks "Load older messages", the chat should fetch and display older messages from the current conversation/session.

Current Behavior

Clicking the button has no visible effect:

• No older messages are loaded
• The chat content does not change
• There is no visible loading state or error message

Steps to Reproduce

1. Open a chat/session with older messages available.
2. Click the "Load older messages" button.
3. Observe that no older messages appear and the UI remains unchanged.

Impact

Users cannot access earlier parts of a conversation, which makes long-running chats or resumed sessions incomplete.