3377017eb4
Based on #6079 by @tunamitom with critical fixes and comprehensive tests. Changes from #6079: - Fix: sanitization overwrite bug — Qwen message prep now runs AFTER codex field sanitization, not before (was silently discarding Qwen transforms) - Fix: missing try/except AuthError in runtime_provider.py — stale Qwen credentials now fall through to next provider on auto-detect - Fix: 'qwen' alias conflict — bare 'qwen' stays mapped to 'alibaba' (DashScope); use 'qwen-portal' or 'qwen-cli' for the OAuth provider - Fix: hardcoded ['coder-model'] replaced with live API fetch + curated fallback list (qwen3-coder-plus, qwen3-coder) - Fix: extract _is_qwen_portal() helper + _qwen_portal_headers() to replace 5 inline 'portal.qwen.ai' string checks and share headers between init and credential swap - Fix: add Qwen branch to _apply_client_headers_for_base_url for mid-session credential swaps - Fix: remove suspicious TypeError catch blocks around _prompt_provider_choice - Fix: handle bare string items in content lists (were silently dropped) - Fix: remove redundant dict() copies after deepcopy in message prep - Revert: unrelated ai-gateway test mock removal and model_switch.py comment deletion New tests (30 test functions): - _qwen_cli_auth_path, _read_qwen_cli_tokens (success + 3 error paths) - _save_qwen_cli_tokens (roundtrip, parent creation, permissions) - _qwen_access_token_is_expiring (5 edge cases: fresh, expired, within skew, None, non-numeric) - _refresh_qwen_cli_tokens (success, preserve old refresh, 4 error paths, default expires_in, disk persistence) - resolve_qwen_runtime_credentials (fresh, auto-refresh, force-refresh, missing token, env override) - get_qwen_auth_status (logged in, not logged in) - Runtime provider resolution (direct, pool entry, alias) - _build_api_kwargs (metadata, vl_high_resolution_images, message formatting, max_tokens suppression)
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