fix(opencode): Shared Session - Show User Message Time Created

[dbpolito]

Show user message time created, falling back to info created.

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

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[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Based on my search, I found one potentially related PR:

PR #7425: fix(session): sort messages by time.created instead of alphabetical order
#7425

This PR is related to working with the time.created field for messages, which is directly relevant to PR #8059 that focuses on showing user message time created with a fallback to info created. These PRs both deal with message timing and creation timestamps.

[github-actions]

Closing this pull request because it has had no updates for more than 60 days. If you plan to continue working on it, feel free to reopen or open a new PR.