Delete memories from Cloud UI dashboard

[Dharmikas]

📋 Pre-flight Checks

• I have searched existing issues and this is not a duplicate
• I understand this issue needs status:approved before a PR can be opened

🔍 Problem Description

Cannot delete memories from UI in cloud dashboard. Deleting memories from cli command is not a good idea and takes too much time.

💡 Proposed Solution

Deleting memories from Cloud UI dashboard is way simpler and faster.

📦 Affected Area

Other

🔄 Alternatives Considered

Delete memories from CLI and TUI.

📎 Additional Context

No response