This pull request updates documentation and test configuration to
introduce and clarify the concept of "Domains" for the Azure DevOps MCP
Server. The main goal is to help users selectively enable only the
toolsets they need, improving usability and performance. The README
gains a new section explaining Domains, and the integration test
configuration file is removed to avoid confusion and outdated examples.

**Documentation improvements:**

* Added a new "Using Domains" section to the `README.md`, explaining how
to use the `-d` argument to selectively enable named groups of related
tools (domains) for the MCP Server, including example configuration and
a list of available domains.
* Updated the table of contents in `README.md` to include the new "Using
Domains" section, shifting the order of subsequent sections.

**Test configuration cleanup:**

* Removed the outdated `intTest/domains/mcp.json` file, which contained
an example of domain configuration for integration tests.

## GitHub issue number
N/A

## **Associated Risks**

N/A

## ✅ **PR Checklist**

- [x] **I have read the [contribution
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CONTRIBUTING.md)**
- [x] **I have read the [code of conduct
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CODE_OF_CONDUCT.md)**
- [x] Title of the pull request is clear and informative.
- [x] 👌 Code hygiene
- [x] 🔭 Telemetry added, updated, or N/A
- [x] 📄 Documentation added, updated, or N/A
- [x] 🛡️ Automated tests added, or N/A

## 🧪 **How did you test it?**

Manual and Copilot review

Improve WorkItems code coverage from;

```sh
----------------|---------|----------|---------|---------|------------------------------------------------------
File            | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                                    
----------------|---------|----------|---------|---------|------------------------------------------------------
  wiki.ts       |   90.06 |    79.59 |     100 |   90.41 | 170-182,193,360,381-383
----------------|---------|----------|---------|---------|------------------------------------------------------
```

to

```sh
----------------|---------|----------|---------|---------|------------------------------------------------------
File            | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                                    
----------------|---------|----------|---------|---------|------------------------------------------------------
  wiki.ts       |   98.67 |    93.87 |     100 |   99.31 | 193
----------------|---------|----------|---------|---------|------------------------------------------------------
```

## GitHub issue number

None

## **Associated Risks**

None

## ✅ **PR Checklist**

- [x] **I have read the [contribution
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CONTRIBUTING.md)**
- [x] **I have read the [code of conduct
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CODE_OF_CONDUCT.md)**
- [x] Title of the pull request is clear and informative.
- [x] 👌 Code hygiene
- [x] 🔭 Telemetry added, updated, or N/A
- [x] 📄 Documentation added, updated, or N/A
- [x] 🛡️ Automated tests added, or N/A

## 🧪 **How did you test it?**

Run `npm run test` command

Adds support for pipeline run tools that correspond to the following
REST API endpoints:
https://learn.microsoft.com/en-us/rest/api/azure/devops/pipelines/runs?view=azure-devops-rest-7.2.
This PR adds support for the following tools:
- pipelines_get_run
- pipelines_list_runs
- pipelines_run_pipeline (this is the new version of build_run_build
tool that existed prior to the change)

## GitHub issue number
Fixes #432 

## **Associated Risks**

Tool build_run_build has been renamed to pipelines_run_pipeline.

## ✅ **PR Checklist**

- [X] **I have read the [contribution
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CONTRIBUTING.md)**
- [X] **I have read the [code of conduct
guidelines](https://github.com/microsoft/azure-devops-mcp/blob/main/CODE_OF_CONDUCT.md)**
- [X] Title of the pull request is clear and informative.
- [X] 👌 Code hygiene
- [] 🔭 Telemetry added, updated, or N/A
- [X] 📄 Documentation added, updated, or N/A
- [X] 🛡️ Automated tests added, or N/A

## 🧪 **How did you test it?**
- Change was tested by using the tool on real production data from
buildcanary organization. Example of prompts:
_"Can you run "Stage Template Pipeline" with ID 5422 from Silviu project
where mkonjikovac-test branch is used for repository resource
devTemplates? Also, pipelines resource sourcePipeline should point to
pipeline run ID 3998856"_
- New unit tests were added via Copilot.

---------

Co-authored-by: Mirjana Konjikovac (from Dev Box) <[email protected]>
Co-authored-by: Dan Hellem <[email protected]>