chore: enhance test setup, improve compatibility, and fix security issues

[Tekvology]

• Removed coveralls dependency.
• Added npm-run-all2 for better script management.
• Split build scripts into smaller, modular tasks.
• Improved cross-platform compatibility for script execution.
• Implemented security overrides for dependencies.
• Added cross-env to ensure setup:test script runs consistently across environments.
• Installed sqlite3 to speed up testing.
• Updated ORM configuration to use an inbuilt SQLite database for improved test performance.
• Fixed test cases to align with the new setup.
• Successfully ran test coverage – all tests passed.