* feat: add --provider CLI flag for multi-provider support
Adds a --provider flag that maps friendly provider names to the
environment variables the codebase uses for provider detection.
No more manual env-var configuration — users can now simply run:
openclaude --provider openai --model gpt-4o
openclaude --provider gemini --model gemini-2.0-flash
openclaude --provider ollama --model llama3.2
openclaude --provider bedrock
openclaude --provider vertex
Implementation details:
- providerFlag.ts: core logic — maps provider names to env vars,
uses ??= so explicit env vars always win over the flag defaults
- providerFlag.test.ts: 18 tests covering all 7 providers,
error messages, model passthrough, and env-var precedence
- cli.tsx: early fast-path (mirrors --bare pattern) — sets env
vars before Commander option-building and module constants run
- main.tsx: adds --provider to Commander option chain for --help
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: custom OPENAI_BASE_URL always wins over Codex model alias detection
When OPENAI_MODEL=gpt-5.4 (or gpt-5.4-mini) and a custom OPENAI_BASE_URL
is set (Azure, OpenRouter, etc), the transport was incorrectly forced to
codex_responses because gpt-5.4 is in CODEX_ALIAS_MODELS. This caused
requests to be sent with Codex auth instead of the user's API key,
resulting in 401 Unauthorized errors.
Fix: only use codex_responses when the base URL is explicitly the Codex
endpoint, OR when no custom base URL is set and the model is a Codex
alias. An explicit OPENAI_BASE_URL always takes priority over model-name
based Codex detection.
Verified locally: gpt-5.4 via OpenRouter now correctly shows
Provider=OpenRouter, Endpoint=https://openrouter.ai/api/v1 instead of
routing to chatgpt.com/backend-api/codex.
Fixes#200, #203
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
