The _has_any_provider_configured() guard only checked env vars, .env file,
and auth.json — missing config.yaml model.provider/base_url/api_key entirely.
Users who configured a provider through setup (saving to config.yaml) but had
empty API key placeholders in .env from the install template were permanently
blocked by the 'not configured' message.
Changes:
- _has_any_provider_configured() now checks config.yaml model section for
explicit provider, base_url, or api_key — covers custom endpoints and
providers that store credentials in config rather than env vars
- .env.example: comment out all empty API key placeholders so they don't
pollute the environment when copied to .env by the installer
- .env.example: mark LLM_MODEL as deprecated (config.yaml is source of truth)
- 4 new tests for the config.yaml detection path
Reported by OkadoOP on Discord.
143b74ec00