1.129.0 Regression: BYOK (ollama extension provider) fails without login

- VS Code Version: 1.129.0
- Feature (e.g. agent/edit/ask mode):
- Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): any from extensions Ollama.ollama, johnny-zhao.oai-compatible-copilot
- Logs:

[warning] [LanguageModelAccess] LanguageModel/Embeddings are not available without a Copilot token source

Steps to Reproduce:

Seems a regression. Before could use models from the extensions, now it fails with "Language model unavailable"

[Edit]: It depends. Was having problem making some extensions run on devcontainer, so just made them run under `"ui"`. In windows, it runs fine. Under a devcontainer (in wsl) it doesnt anymore.