Add 'has dependent' and 'dependent on' link types

[jevansaks]

Summary

Adds support for the CMMI "Has Dependent" (Microsoft.VSTS.Common.Dependent-Forward) and "Dependent On" (Microsoft.VSTS.Common.Dependent-Reverse) link types to the work_items_link and work_item_unlink tools.

These are distinct from the existing "Successor"/"Predecessor" (System.LinkTypes.Dependency) link types and are used in ADO projects that use the CMMI process template.

Changes

• src/tools/work-items.ts: Added "has dependent" and "dependent on" cases to getLinkTypeFromName(), and added them to the type enum for both work_items_link and work_item_unlink tools.
• test/src/tools/work-items.test.ts: Updated test coverage to include the new link types.

Testing

• All 101 existing tests pass
• Type checking passes (tsc --noEmit)
• Lint/format passes (via lint-staged on commit)

Fixes #929

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@f1243bc). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #930   +/-   ##
=======================================
  Coverage        ?   93.84%           
=======================================
  Files           ?       16           
  Lines           ?     1577           
  Branches        ?      330           
=======================================
  Hits            ?     1480           
  Misses          ?       23           
  Partials        ?       74           

Flag	Coverage Δ
unittests	93.84% <100.00%> (?)

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[jevansaks]

Copilot CLI created this change, but I tested it locally with this MCP config and it worked to create these link types.

   "ado": {
     "type": "stdio",
     "command": "node",
     "args": ["C:\\repos\\azure-devops-mcp\\dist\\index.js", "microsoft"],
     "env": {
       "LOG_LEVEL": "debug"
     }
   }

[jevansaks]

@danhellem could you take a look at this PR?

[danhellem]

@jevansaks per contribution guidelines, you need to wait for us to review the Issue before creating a PR.

That said, this is a pretty simple PR. So will take a look. But in the future, please follow the guidelines

[jevansaks]

@jevansaks per contribution guidelines, you need to wait for us to review the Issue before creating a PR.

That said, this is a pretty simple PR. So will take a look. But in the future, please follow the guidelines

Shoot, sorry about that! Thanks for considering.