fix: restore live event submit path for apply patch tests

[bolinfest]

Summary

This fixes the CI regression introduced by #20040.

That PR migrated several apply_patch_cli tests from direct codex.submit(Op::UserTurn { ... }) calls to harness.submit(...). harness.submit() waits for TurnComplete before returning, which drains the same event stream that these tests use to assert TurnDiff, PatchApplyUpdated, and related live events. The regressed tests then timed out waiting for events that had already been consumed.

This change restores a no-wait submit path for the event-observing apply_patch_cli tests so they can watch the turn stream directly again.

What Changed

• added a local submit_without_wait(...) helper in codex-rs/core/tests/suite/apply_patch_cli.rs
• switched the apply_patch_cli tests that assert live turn events back to that helper
• left the profile-backed harness.submit(...) migration in place for tests that only care about final filesystem or tool output state

Why macOS Looked Green

In the failing run 25084487331, //codex-rs/core:core-all-test was cached on macOS, so the regressed tests were not rerun there. The Linux GNU, Linux MUSL, and Windows Bazel jobs reran the target and exposed the failure.

Verification

• cargo test -p codex-core apply_patch_ -- --nocapture
• previously failing local cases now pass again:
  • apply_patch_cli_move_without_content_change_has_no_turn_diff
  • apply_patch_turn_diff_for_rename_with_content_change
  • apply_patch_aggregates_diff_across_multiple_tool_calls