feat: setup Nx workspace with comprehensive development tooling

[shettydev]

Description

This PR transforms the SSHield project into a fully configured Nx workspace, improving project organization. The changes introduce tooling and automation with the help of nx.

Key Improvements:

• Nx Workspace Configuration: Complete setup with named inputs, target defaults, and caching for improved build performance
• ESLint Integration: Comprehensive TypeScript-aware linting rules with proper globals and recommended configurations (basic setup - needs to be expanded)
• Development Workflow: Standardized tasks for build, development, linting, and testing through Nx targets
• Project Structure: Clean separation of concerns with proper ignore patterns for generated files
• Module System: Updated to ES modules (from commonjs) for better modern JavaScript compatibility

Type of change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

The following commands have been verified to work correctly:

• nx build - Compiles TypeScript and outputs to dist directory
• nx dev - Runs the application in development mode using ts-node
• nx lint - Executes ESLint with the new TypeScript configuration
• nx start - Runs the compiled application from dist
• All existing CLI functionality remains intact and operational

If you don't have the CLI installed then you can use test it out using pnpm nx ... as well

Screenshots (if appropriate):

screenshot of the nx graph:

Additional context

This setup provides a solid foundation for future development and scaling of the SSHield project. The Nx workspace will enable:

• Faster builds through intelligent caching
• Consistent code quality through standardized linting
• Improved development workflow with unified task execution
• Better project organization as the codebase grows

Things to be implemented:

• The monorepo workspace setup is yet to be implemented by @shaiknoorullah in order for multiple projects to be registered
• Lint rules need to be expanded
• Developer documentation needs to be included and the relevant steps for the use of the nx commands need to be listed