Claude Code 2.1.239 adds residency cost premium, fullscreen renderer

Claude Code 2.1.239 ships 59 CLI changes, including cost estimates that now include a 1.1× US-only-inference premium for data-residency workspaces. It also adds a one-time fullscreen renderer offer on Bedrock, Vertex, and Foundry, plus a /claude-api upgrade command for migrating Python projects to the 1.x SDK.