This pull request updates the project to transition from the DXT packaging system to MCPB, and also includes dependency upgrades and minor code formatting improvements. The most important changes are grouped below:

Packaging System Migration:

• Renamed the GitHub workflow file from .github/workflows/dxt-pack.yaml to .github/workflows/mcpb-pack.yaml and updated all relevant steps, commands, and environment variables to use MCPB instead of DXT. [1] [2]
• Updated manifest-full.json and manifest-minimal.json to replace the dxt_version field with mcpb_version. [1] [2]

Dependency Upgrades:

• Upgraded several dependencies and devDependencies in package.json to their latest versions, including @apidevtools/swagger-parser, @modelcontextprotocol/sdk, dotenv, es-toolkit, and testing/linting tools.

Code Formatting:

• Improved formatting in an integration test assertion for better readability in src/tests/integration/direct.test.ts.