Add Fabric OneLake MCP toolset with docs

[srinuthati78]

What does this PR do?

`Add Fabric OneLake MCP toolset with friendly-name support and docs

PR Description

Summary Add a dedicated Fabric OneLake toolset with commands for workspaces, items, paths, and files, backed by a new service layer, option definitions, and JSON models. Expand the test suite with command, service, and integration-style coverage to validate both GUID and friendly-name identifier flows, plus supporting scripts and fixtures. Refresh Fabric MCP documentation to explain friendly-name behavior, clean up obsolete debug wiring, and restore local MCP client configuration for development. Testing dotnet build dotnet test tools/Fabric.Mcp.Tools.OneLake/tests/Fabric.Mcp.Tools.OneLake.Tests.csproj

GitHub issue number?

[Link to the GitHub issue this PR addresses]

Pre-merge Checklist

• [ ] Required for All PRs
  • [X] Read contribution guidelines
  • [X] PR title clearly describes the change
  • [X] Commit history is clean with descriptive messages (cleanup guide)
  • [X] Added comprehensive tests for new/modified functionality
  • [X] Updated servers/Azure.Mcp.Server/CHANGELOG.md and/or servers/Fabric.Mcp.Server/CHANGELOG.md for product changes (features, bug fixes, UI/UX, updated dependencies)
• [ ] For MCP tool changes:
  • [X] One tool per PR: This PR adds or modifies only one MCP tool for faster review cycles
  • [X] Updated servers/Azure.Mcp.Server/README.md and/or servers/Fabric.Mcp.Server/README.md documentation
  • [X] Validate README.md changes using script at eng/scripts/Process-PackageReadMe.ps1. See Package README
  • [X] Updated command list in /servers/Azure.Mcp.Server/docs/azmcp-commands.md and/or /docs/fabric-commands.md
  • [X] Run .\eng\scripts\Update-AzCommandsMetadata.ps1 to update tool metadata in azmcp-commands.md (required for CI)
  • [ ] For new or modified tool descriptions, ran ToolDescriptionEvaluator and obtained a score of 0.4 or more and a top 3 ranking for all related test prompts
  • [ ] For new tools associated with Azure services or publicly available tools/APIs/products, add URL to documentation in the PR description
• [ ] Extra steps for Azure MCP Server tool changes:
  • [ ] Updated test prompts in /servers/Azure.Mcp.Server/docs/e2eTestPrompts.md
  • [ ] 👉 For Community (non-Microsoft team member) PRs:
    • [ ] Security review: Reviewed code for security vulnerabilities, malicious code, or suspicious activities before running tests (crypto mining, spam, data exfiltration, etc.)
    • [ ] Manual tests run: added comment /azp run mcp - pullrequest - live to run Live Test Pipeline

[srinuthati78]

@microsoft-github-policy-service agree company="Microsoft"

@microsoft-github-policy-service agree company="Microsoft"