fix(claude): remove unsupported no-color flag; update OpenRouter model catalog

feat: auto-authorize all Claude tools to skip permission prompts

fix: resolve claude CLI stdin/root issues, improve commands and tests

fix: claude engine uses CLI directly, no extra config needed

fix: make claude engine work without project-level auth config

refactor: remove provider config from code, use system env directly

fix: use ANTHROPIC_AUTH_TOKEN for OpenRouter per official docs

docs: update README EN + CN for Claude Code engine

test: add Claude engine integration tests

feat: add Claude Code CLI as third engine backend

feat: multiple fixes and features

enforce documented model whitelist in /model

sync /models output with documented model catalog

Support Copilot CLI image input via @file prompt references

Align model defaults/lists and update README for Copilot image support