Claude Code: v2.1.283

This release added `x-claude-code-prompt-id` to gateway hint headers, `availableModelsMatch` and `deniedModels` managed settings, OpenTelemetry span events for tool outputs, a `/doctor prompt-audit` command, click-to-expand for truncated messages, `path` to `--plugin-dir` load-failure entries, an opt-in `load_test_mode` block, and a `mantle` upstream provider, along with fixes for SDK sessions.