Adds GT_AGENT env var to track agent override when using --agent flag. Handoff reads and preserves GT_AGENT so non-default agents persist across restarts. Co-authored-by: joshuavial <git@codewithjv.com>
Adds GT_AGENT env var to track agent override when using --agent flag. Handoff reads and preserves GT_AGENT so non-default agents persist across restarts. Co-authored-by: joshuavial <git@codewithjv.com>