feat: add omnibase MCP server

[palmierie]

MCP Server Information

Server Name: omnibase
Repository URL: https://github.com/itsJeremyMax/omnibase
Brief Description: Secure MCP server that gives AI agents access to databases including PostgreSQL, MySQL, SQLite, and 50+ more through a single server with permission-based access controls.

Basic Requirements

• Open Source: Uses acceptable license (Apache-2.0, MIT, BSD-2-Clause, BSD-3-Clause or other permissive license)
• MCP Compliant: Implements MCP API specification
• Active Development: Recent commits and maintained
• Docker Artifact: Dockerfile
• Documentation: Basic README and setup instructions
• Security Contact: Method for reporting security issues

Submitter Checklist

• This server meets the basic requirements listed above
• I understand this will undergo automated and manual review.
• I have tested the MCP Server using task validate -- --name omnibase
• I have built the MCP Server using task build -- --tools omnibase (pending merge of fix: update Go base image to 1.26 to match sidecar go.mod requirement itsJeremyMax/omnibase#37 which fixes the Dockerfile Go version — once merged, source.commit in server.yaml should be updated to the merged commit hash and the build will pass)
• If the server requires credentials to test it, I have shared test credentials using this form