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@midhunann

Please provide me with a brief concise description of the changes that you have made. @Parthivsurya

This PR adds a new test suite for EnvironmentManager to ensure the reliability of the environment detection logic.

Changes:

• Created src/test/environment.test.ts.
• Added tests to verify:
  • EnvironmentManager singleton consistency.
  • checkRequiredTools returns the expected structure.
  • validateEnvironment executes successfully against the current workspace without errors.

Purpose:
To improve test coverage and prevent regressions in tool detection (ghci, stack, etc.).

@midhunann