Reviews

Each task gets at most three codex rounds. Each round: the commit, the verdict, the findings and what was done.

T01

Round 1, 4e2f3c9: FAIL. Linux had no X11 or Wayland backend and would start headless; macOS CI linked no binary; Cargo.lock passed the 500-line rule unstated. Fixed in 9c0c067 and f8857fe: wayland and x11 on, Linux starts with WAYLAND | X11 and no headless; cargo build --locked in macOS CI; the lockfile named as exempt.
Round 2, f8857fe: PASS. The Windows runner's missing rustc goes to T23.