fix(cli): clarify session-id resume requirement

[Osraka]

Summary

• clarify that --session-id requires --resume for goose session / goose run
• keep the wording broad enough for session-management subcommands that use a session id directly
• add a CLI help regression test for the goose session --help output

Fixes #10076.

Validation

• cargo test -p goose-cli --no-default-features --features rustls-tls session_help_describes_session_id_resume_requirement --quiet
• cargo fmt -p goose-cli -- --check
• git diff --check

[Osraka]

Closing this as duplicate. #10077 has already landed on main and closes #10076 with the session-id help text update. Thanks.