- Added `handleUsageResetCommand` support to list and redeem usage reset credits.
- Refactored `/usage` into `show` and `reset` subcommands and removed `/reset-usage`.
- Handled ACP/TUI `/usage` flows so `show` reports usage and `reset` redeems credits.
- Kept selected theme setting values dirty-colored while selected in the UI list.
- Added AuthStorage.listResetCredits to query each stored Codex account from the reset-credits endpoint and return live availability plus active or error state.
- Exposed the new status fetch through AgentSession and switched reset-usage selectors and commands to consume it via toResetUsageAccounts.
- Updated reset-usage UI and slash-command output to show per-account errors and updated empty-state messaging when resets could not be loaded.