fix: model list not updating at startup — fast-retry on auth race (#149)

fix: update model catalog — gpt-5.4/5.3-codex removed, gpt-5.2-codex is new flagship

fix: strip service_tier from request body + add OpenAI-Beta header + update gpt-5.4 efforts

fix: collapsible model dropdown, default to gpt-5.4, remove legacy gpt-5

feat: add gpt-5.4 + codex-spark support, matrix model selector, extended reasoning efforts

feat: dynamic model list fetching from Codex backend (#9)

feat: Claude Code quick setup — dashboard card, model aliases & README

fix: remove fake Claude/Gemini model aliases, use dynamic catalog

feat: multi-protocol support — Anthropic Messages API + Google Gemini API

feat: architecture audit — disguise hardening, update automation, robustness