feat: add dbt-mcp server with BigQuery support

[laderalibre]

🚀 Add dbt-mcp Server to Registry

This PR adds the first official dbt MCP server to the Docker MCP Registry.

📋 What is dbt-mcp?

A Model Context Protocol server for dbt (data build tool) that enables AI assistants to:

• Interact with dbt projects
• Run and test dbt models
• Execute SQL queries
• Manage data transformations
• Work with BigQuery and other data warehouses

✨ Key Features

• Pre-built Docker image: laderalibre/dbt-mcp:v2.0.0
• GitHub integration: Supports private repositories via GITHUB_TOKEN
• Volume mounting: Easy project file management
• BigQuery support: Production-ready for data teams
• Category: Database (fits dbt's data transformation nature)

🔧 Configuration

• Secret: GITHUB_TOKEN for repository access
• Environment: DBT_PROJECT_PATH for project configuration
• Volume: /dbt mount point for dbt models and files

🎯 Why this matters

This is the first dbt server in the official registry, filling a gap for data engineers and analysts who want to use AI with dbt workflows.

✅ Testing

• Server configuration generated successfully
• Catalog imported to Docker Desktop
• Image available on Docker Hub
• All required fields configured

Ready to enable AI-powered dbt workflows for the community! 🚀

[ipedrazas]

This is the result of the task validate command:

task validate -- --name dbt-mcp
task: [validate] go run ./cmd/validate --name dbt-mcp
✅ Name is valid
✅ Directory is valid
✅ Secrets are valid
✅ License is valid
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