refractor(shell): Allow PIP command in a .venv, and other minor changes.

[hanggrian]

Description

• Configure 80-character max length in EditorConfig.

  This configuration is preferred by Google Shell Style Guide. Also enforces 2-space indentation already specified globally.

• Add .shellcheckrc to suppress source commands.

  ShellCheck is installed globally (or as a plugin in an IDE). Enable external sources to find the activation script in a virtual environment directory.

• Remove flags and default value from echo commands.

  Disable backslash interpretation, as the ASCII codes are embedded in the color definitions. Also removes empty string, a blank line is already the default output.

• Declare a function if logic is reused at least twice.

  Created functions warn, die, is_installed and is_file.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)

Changes Made

• .editorconfig
• .gitignore
• core/setup_mcp.sh
• hive/scripts/test-mcp-curl.sh
• scripts/setup.sh

Testing

Describe the tests you ran to verify your changes:

• Unit tests pass (npm run test)
• Lint passes (npm run lint)
• Manual testing performed

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[RichardTang-Aden]

Can you resolve the merge conflict and remove the setup from hive/scripts/test-mcp-curl.sh? The rest of the changes look good to me

[hanggrian]

Hi Richard! Thanks for reviewing my code. A new pull request has been made to address the recent changes in the main branch: #161.