Expose exact quota reset timestamps as status line items in Codex CLI.

What variant of Codex are you using?

CLI

What feature would you like to see?

Example config:
```toml
tui.status_line = [
"model-with-reasoning",
"context-remaining",
"five-hour-limit",
"five-hour-limit-reset-at",
"weekly-limit",
"weekly-limit-reset-at",
"current-dir",
]

Expected behavior:

• render reset times in the user's local timezone
• update automatically as quota metadata changes
• render nothing when reset metadata is unavailable
• leave existing status line items unchanged

Additional information

This would make quota information in the status line much more actionable for planning work, especially when users are close to a 5-hour or weekly limit.

Existing related status line items include:

• model-with-reasoning
• context-remaining
• five-hour-limit
• weekly-limit
• current-dir