[FEATURE] : show timestamps on chat messages in the UI

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

it would be good to know how long a message has sat since the agent finsihed. notifications on the sessions woulde very usefulaswell

Proposed Solution

just a time stamp thats all

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_