d9f195ea39
Separate model-native context metadata from provider-effective runtime capability so OpenAI API gpt-5.5 stays at its documented 1.05M window while the openai-codex OAuth route budgets preflight, recovery, capacity checks, prompt text, and TUI context indicators against the Codex-family 400K envelope. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>