[POC] TWB generation

[sf-ali-mahmoud]

feat(workbooks): add tools to generate TWB and inject basic viz

Description

• Add generate-workbook-xml tool to produce a Tableau TWB (XML) string that connects to a published data source.
• Add inject-viz-into-workbook-xml tool to inject a basic visualization into a worksheet by wiring fields to Columns/Rows and adding datasource dependencies.
• Wire new tools into src/tools/tools.ts and register names/groups in src/tools/toolName.ts.
• Update README.md with usage, parameters, and behavior for both tools.

Motivation and Context

Enables programmatic generation of Tableau workbooks and simple visualization injection to streamline automation and MCP-based workflows.

Type of Change

• New feature
• Bug fix
• Breaking change
• Documentation update
• Other

How Has This Been Tested?

• Local validation of XML generation and sheet injection on sample inputs.
• Verified XML structure and presence of expected nodes (datasources, view, rows, cols).

Related Issues

N/A

Checklist

• Version bumped with npm run version
• Documentation updated (README.md)
• Tests added
• All tests pass locally