[FEATURE]: Add seconds to message timestamp display

[dadadedahuamao]

• I have verified this feature I'm about to request hasn't been suggested before.

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Describe the enhancement you want to request

Currently, message timestamps in the chat interface only display date and time in a simplified format (e.g., \2026-04-01 13:48), lacking second-level precision.

Current behavior:

• Timestamp format: \YYYY-MM-DD HH:mm\ (e.g., \2026-04-01 13:48)

Expected behavior:

• Timestamp format: \YYYY-MM-DD HH:mm:ss\ (e.g., \2026-04-01 13:48:35)

Benefits:

1. Precise tracking - Users can accurately track when each message was sent, helpful for debugging, auditing, or referencing specific moments in a conversation
2. Better history review - When reviewing long conversation histories, second-level precision helps distinguish between messages sent close together
3. Consistency with developer tools - Most developer-focused tools and logs include second-level timestamps for precision

Suggested implementation:
Update the timestamp formatting in the chat message component to include seconds. Example format: \YYYY-MM-DD HH:mm:ss\

This is a minor but useful UX improvement for users who need precise timing information in their development workflow.

[github-actions]

This issue doesn't fully meet our contributing guidelines.

What needs to be fixed:

• Feature requests must use the [FEATURE]: title format — please rename to [FEATURE]: Add seconds to message timestamp display
• Feature requests require the verification checkbox confirming the feature hasn't been suggested before (part of the feature request template)
• Please use the feature request issue template, which includes the required fields and checkbox

Please edit this issue to address the above within 2 hours, or it will be automatically closed.

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This issue might be a duplicate of existing issues. Please check:

• [FEATURE]: Add timestamp next to messages in chat (both agent and user messages) #8634: Requests adding timestamps next to messages in chat (agent and user messages) — your request to add seconds may be related or a sub-feature of this

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

Thanks for updating the issue! It now meets our contributing guidelines. We appreciate you taking the time to make the required changes.

[guysoft]

I added this option in the following PR:
#29398
tell me if its what you wanted :)