Claude Code 2.1.268 · third-party endpoint 400 fix + gateway pricing

Fixes HTTP 400 on every turn against third-party Anthropic-compatible endpoints since 2.1.265. WebFetch 300s deadline; gateway pricing: rates into managed settings; idle CPU and Bedrock/Vertex/Foundry cache/tool-list fixes. latest/next 2.1.268; stable 2.1.236.¹²

Relevant to: Anyone on Claude Code latest/next — mandatory if ANTHROPIC_BASE_URL or a third-party compatible endpoint is in the path