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## What changed - Add `transparentBackground` to image-generation items and legacy completion events. - Map Images API backgrounds to `true` for transparent, `false` for opaque, and `null` for automatic or unavailable values. - Preserve the metadata in live notifications and persisted or resumed thread history while continuing to deserialize older items that omit it. ## Testing - Cover transparent, opaque, and automatic backgrounds, including image edits and thread read/resume flows. - Verify the stable JSON shape and optional TypeScript field. GitOrigin-RevId: 08527f37f23431df45fab1ed34eb82b2139b49d7
codex-protocol
This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.
This crate should have minimal dependencies.
Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.