fix(helm): use correct templating for mcpClientConfig (#2673)

[dominictayloruk]

Summary

Briefly explain the purpose of this PR and the problem it solves.

Changes

• What was changed and why
• Any notable design decisions or trade-offs

Type of change

• Bug fix
• Feature
• Refactor
• Documentation
• Chore/CI

Affected areas

• Core (Go)
• Transports (HTTP)
• Providers/Integrations
• Plugins
• UI (Next.js)
• Docs

How to test

Describe the steps to validate this change. Include commands and expected outcomes.

# Core/Transports
go version
go test ./...

# UI
cd ui
pnpm i || npm i
pnpm test || npm test
pnpm build || npm run build

If adding new configs or environment variables, document them here.

Screenshots/Recordings

If UI changes, add before/after screenshots or short clips.

Breaking changes

• Yes
• No

If yes, describe impact and migration instructions.

Related issues

Link related issues and discussions. Example: Closes maximhq#123

Security considerations

Note any security implications (auth, secrets, PII, sandboxing, etc.).

Checklist

• I read docs/contributing/README.md and followed the guidelines
• I added/updated tests where appropriate
• I updated documentation where needed
• I verified builds succeed (Go and UI)
• I verified the CI pipeline passes locally if applicable

[gemini-code-assist]

Code Review

This pull request updates the Bifrost Helm chart to version 2.0.18, primarily fixing the MCP client configuration template to correctly map camelCase Helm values to snake_case configuration keys. Feedback indicates that the metadata for the new entry in index.yaml is inconsistent with Chart.yaml regarding maintainers, icons, and keywords, and should be synchronized.

[gemini-code-assist]

The metadata for the new entry in index.yaml (version 2.0.18) is inconsistent with the metadata defined in helm-charts/bifrost/Chart.yaml. Specifically:

• Maintainers: index.yaml uses akshay@getmaxim.ai while Chart.yaml uses support@getbifrost.ai.
• Icon: index.yaml uses https://www.getmaxim.ai/bifrost/bifrost-logo-only.png while Chart.yaml uses https://www.getbifrost.ai/favicon.png.
• Keywords: index.yaml is missing openai and anthropic which are present in Chart.yaml.

It is recommended to regenerate the index.yaml file using helm repo index or manually synchronize these fields to ensure consistency across the repository.