Initial commit for cmake:build cmake:configure cmake:get_errors

[bradphelan]

This pull request introduces new CMake-specific tools for use with VS Code's Language Model API (Copilot), enabling build, configure, and error-reporting operations to be invoked programmatically or by AI agents. It also updates the extension's VS Code engine dependencies to the latest version and adds supporting type definitions. The most significant changes are the addition of the new Copilot tool implementations and their registration during extension activation.

Copilot Tool Integration for CMake:

• Added new CMake Copilot tools:

  • cmake_build: Builds the CMake project, optionally for a specific target and with a clean step. [1] [2] [3]
  • cmake_configure: Configures (or reconfigures) the CMake project, with an option to clean the cache first. [1] [2] [3]
  • cmake_get_errors: Retrieves CMake-specific diagnostics, including configure, build, and preset errors. [1] [2] [3]

• Implemented tool registration logic in src/copilot/index.ts and ensured registration occurs during extension activation in src/extension.ts. [1] [2]

Dependency and Compatibility Updates:

• Updated the minimum required VS Code engine version and corresponding type definitions to ^1.109.0 to support the new Language Model API. [1] [2]

Testing Infrastructure:

• Updated fake extension context classes in the test helpers to stub the new languageModelAccessInformation property, ensuring compatibility with the latest VS Code API. [1] [2]