* Show the serving provider in the model-info card
The model-info popup (click the model name on a message) shows the model
and pricing, with a logo inferred from the model NAME. But the same model
can be served by different endpoints — e.g. claude-haiku via OpenRouter
vs GitHub Copilot vs Anthropic direct — which the name-based logo can't
distinguish.
Add a 'Provider' line derived from the session's endpoint URL:
- new providerLabel(endpointUrl) in static/js/providers.js maps the host
to a friendly name (GitHub Copilot, OpenRouter, Anthropic, OpenAI,
Google, AWS Bedrock, DeepSeek, Mistral, Groq, Together, Fireworks,
Perplexity, xAI), 'Local' for loopback/LAN, else the bare host.
- static/js/chatRenderer.js renders it under Model in the card, from
window.sessionModule.getCurrentEndpointUrl().
* Anchor provider-label patterns to the hostname
providerLabel matched its patterns against the full endpoint URL with
unanchored substrings, so a host like max.airlines.com matched /x\.ai/ and was
mislabeled "xAI". Anchor each pattern to the end of the hostname ((^|.)domain$)
and test against the parsed host instead of the raw URL.
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