[Backend Release] v0.52.0

[deploystack-automation]

Backend Release v0.52.0

This PR prepares a new backend release.

When merged, this will:

1. Create a release tag
2. Build and publish a multi-architecture Docker image to Docker Hub

The Docker image will be available at:

• deploystack/backend:latest
• deploystack/backend:v0.52.0

Supported Architectures

• linux/amd64 (Intel/AMD)
• linux/arm64 (Apple Silicon, AWS Graviton)

Release notes:

• feat(all): add SSE endpoint for streaming MCP client activity (305b0518)
• fix(backend): filter disabled servers from regular users, allow global_admin to see all (65269670)
• feat(all): implement OAuth pending flows to prevent orphaned installations (8e83df53)
• feat(backend): add SSE plugin with heartbeat interval for server events (9e75a897)
• feat(all): add SSE streaming to MCP metrics endpoint (a3ce7487)

[deploystack-automation]

Release Branch Cleanup ✅

Branch backend-release has been automatically deleted after PR was merged.