## What changed
- Store `CodexErr` in a `Box` within `ImageBackendError` while preserving its accessor.
- Terminate `bail!` calls with semicolons in the cloud client and TUI.
- Share a body-prefix length constant across OTLP loopback assertions and remove redundant borrows of diagnostic strings.
GitOrigin-RevId: 40aee7d4d03b17fc8dbd9295e0853c811852c177