v0.4.0

🚀 Toolhive v0.4.0 is live!

This release brings major enhancements to Kubernetes integration, MCP server capabilities, and developer tooling support!

Developer Experience
• Added support for Trae IDE and Continue.dev clients for more flexible development workflows
• New Claude Code skills and agents help automate documentation and PR tasks
• Improved developer guide with updated Go version references
• Export command now supports Kubernetes format for easier deployments

Architecture & Documentation
• Added comprehensive architecture documentation
• New MCP _meta field support improves request parsing capabilities
• Registry API has been fully externalized from the core project

MCP & Kubernetes
• Introduced MCPRemoteProxy CRD controller for seamless remote MCP server proxying
• MCPGroup now supported in Kubernetes environments for better organization
• Internal MCP optimizer group is now hidden for cleaner interfaces
• Fixed regression that broke detection of already-running remote MCP servers

Workloads & APIs
• New proxy-logs endpoint gives visibility into workload logging
• Enhanced token-exchange middleware with comprehensive unit tests

Infrastructure & Reliability
• Fixed nil pointer dereference in environment variable validation
• Resolved race condition in keyring provider that caused concurrent restart failures
• OpenShift values now properly aligned with core Kubernetes values
• Fixed chainsaw install for e2e tests
• Registry updates pulled from multiple releases (v2025.10.18–v2025.10.22)

Dependencies
• Bumped lestrrat-go/jwx/v3 → 3.0.12
• Bumped cedar-policy/cedar-go → 1.2.7
• Bumped mark3labs/mcp-go → 0.42.0
• Updated golang.org/x/exp/jsonrpc2
• Go downgraded to 1.24 for UBI alignment

👋 Welcome to our newest contributor @tgrunnagle! 🥳

🔗 Full changelog: v0.3.11...v0.4.0