* docs: add provider setup guide and improve onboarding hints
Fixes#2161
Add docs/providers.md with step-by-step setup instructions for every
supported LLM provider: OpenRouter, Ollama, LM Studio, vLLM, SGLang,
and all built-in providers. Includes env var names, example configs,
common pitfalls, and verification steps.
Improve onboarding wizard:
- Add URL hints to provider selection list
- Show common local endpoints when choosing Custom (OpenAI-compatible)
- Add post-setup guidance for OpenRouter and custom endpoints
- Reference docs/providers.md for compat troubleshooting
Update cross-references in getting-started.md, troubleshooting.md,
docs/README.md, and help-text.ts to link to the new guide.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* test: verify config help mentions OpenRouter, Ollama, and docs/providers.md
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: trek-e <trek-e@users.noreply.github.com>
