Feat/atomic chat provider

[yanalialiuk]

Description

Adds Atomic Chat as a first-class local model provider (atomic-chat).
Atomic Chat exposes an OpenAI-compatible API (default http://127.0.0.1:1337/v1/). This PR wires it into Continue the same way as other local OpenAI-compatible backends:

• core/llm/llms/AtomicChat.ts — provider class extending OpenAI
• Registration in core/llm/llms/index.ts and core/llm/autodetect.ts
• packages/openai-adapters — CLI (cn) support via constructLlmApi
• GUI — Atomic Chat entry in Add Model with autodetect
• Docs — docs/customize/model-providers/more/atomic-chat.mdx

Example config:

models:
  - name: Atomic Chat
    provider: atomic-chat
    model: "<model-id>"
    apiBase: http://127.0.0.1:1337/v1/

Checklist

• I've read the contributing guide

Tests

Added provider smoke tests in core/llm/llms/OpenAI-compatible.vitest.ts:

createOpenAISubclassTests(AtomicChat, {
  providerName: "atomic-chat",
  defaultApiBase: "http://127.0.0.1:1337/v1/",
});

Covers default providerName, apiBase, and OpenAI-compatible request behavior shared with other local providers.

Manual test plan:

-Start Atomic Chat with a loaded model (curl http://127.0.0.1:1337/v1/models).
-Add Atomic Chat via Continue UI or config.yaml with provider: atomic-chat.
-Send a chat message in the extension — response streams from the local model.
-(Optional) Run cn with the same config.yaml and confirm chat works via CLI.

---

Summary by cubic

Adds Atomic Chat as a first-class local model provider (atomic-chat) with OpenAI-compatible API support. Connect to models at http://127.0.0.1:1337/v1/ from the Continue UI and cn, with automatic model detection.

• New Features

  • Provider: new core/llm/llms/AtomicChat.ts extending OpenAI with default apiBase http://127.0.0.1:1337/v1/; registered in core/llm/llms/index.ts and added to autodetect templating.
  • UI: Atomic Chat in Add Model; fetches /v1/models on load/selection without an API key, auto-selects the first detected model, and blocks Connect until a real model id is chosen; includes gui/public/logos/atomic-chat.png.
  • CLI: packages/openai-adapters adds atomic-chat to constructLlmApi and schema with the same default apiBase.
  • Tests: OpenAI-compatible smoke tests added for atomic-chat.
  • Docs: new guide at docs/customize/model-providers/more/atomic-chat.mdx.

• Bug Fixes

  • Prevent stale model lists in Add Model by ignoring late responses when switching providers (invalidate in-flight fetches and compare via refs).

^{Written for commit 6196458. Summary will update on new commits. Review in cubic}

[github-actions]

All contributors have signed the CLA ✍️ ✅
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[yanalialiuk]

I have read the CLA Document and I hereby sign the CLA

[cubic-dev-ai]

1 issue found across 11 files

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