Fixes issue #3384 where Tailcall CLI isn’t recognized on Windows after installation.

• Adds MSVC detection for Windows installations
• Improves error handling with descriptive messages
• Adds process.exit(1) on installation failure
• Updates README with Windows requirements

/claim #3384

Build & Testing:

• I ran cargo test successfully.
• I have run ./lint.sh --mode=fix to fix all linting issues raised by ./lint.sh --mode=check.

Checklist:

• I have added relevant unit & integration tests.
• I have updated the documentation accordingly.
• I have performed a self-review of my code.
• PR follows the naming convention of <type>(<optional scope>): <title>