refactor: Migrate from Python to Node.js/Electron Stack

[GreenHacker420]

Summary

Complete migration from Python CLI application to modern Node.js/Electron desktop application with React frontend.

Breaking Changes

⚠️ BREAKING CHANGE: This is a complete rewrite of the application stack.

Removed

• ❌ All Python code (CLI, core modules, crypto)
• ❌ Python dependencies (requirements.txt, pyproject.toml, setup.py)
• ❌ Python tests and examples
• ❌ Pre-commit hooks configuration
• ❌ Python implementation documentation
• ❌ All Python references from documentation

Added

• ✅ Electron desktop application
• ✅ React 19 frontend with Vite
• ✅ Prisma ORM with SQLite database
• ✅ Modern UI with Ant Design + Tailwind CSS + shadcn/ui
• ✅ Node.js-based encryption
• ✅ Updated CI/CD workflows for Node.js
• ✅ Updated all documentation for Node.js/Electron

New Technology Stack

Backend

• Runtime: Node.js 20+
• Desktop Framework: Electron 38
• Database: SQLite with Prisma ORM
• Encryption: Node.js crypto module (AES-256-GCM)

Frontend

• Framework: React 19
• Build Tool: Vite 7
• UI Library: Ant Design 5
• Styling: Tailwind CSS 4
• Components: shadcn/ui
• Icons: Lucide React + Ant Design Icons

Development

• Linting: ESLint 9
• Package Manager: npm
• Build: electron-builder

Features Preserved

All core functionality has been maintained:

• ✅ Master password authentication
• ✅ Project-based organization
• ✅ Encrypted environment variable storage
• ✅ Export to .env and JSON formats
• ✅ Audit logging
• ✅ Offline-first architecture

New Features

• 🎨 Modern, dark-themed desktop UI
• 🖥️ Native desktop application experience
• 🔐 Enhanced security with master key derivation
• 📊 Better visual organization
• 🚀 Faster performance
• 💾 Improved database management with Prisma

Documentation Updates

• ✅ Updated installation.md with Node.js instructions
• ✅ Updated CONTRIBUTING.md with JavaScript/React guidelines
• ✅ Updated SETUP_CHECKLIST.md with Node.js/Electron topics
• ✅ Removed all Python references
• ✅ Added Node.js development setup instructions
• ✅ Updated code examples to JavaScript

CI/CD Updates

• ✅ Updated workflows from Python to Node.js
• ✅ Changed CodeQL analysis from Python to JavaScript
• ✅ Updated linting from flake8/black to ESLint
• ✅ Updated testing infrastructure

Migration Notes

This is a fresh start - no migration path from Python version:

1. Install Node.js 20+ instead of Python
2. Run npm install instead of pip install
3. Use npm run electron:dev to start the app
4. Data will be stored in a new SQLite database

Why This Change?

• Better UX: Desktop app provides native experience vs CLI
• Modern Stack: React + Electron is industry standard for desktop apps
• Easier Development: Better tooling and ecosystem
• Visual Interface: GUI is more user-friendly than CLI
• Cross-platform: Electron ensures consistent experience across OS
• Active Community: Larger ecosystem and better support

Testing

• ✅ Application builds successfully
• ✅ Authentication flow works
• ✅ Project CRUD operations functional
• ✅ Environment variable management working
• ✅ Export functionality operational
• ✅ Encryption/decryption verified
• ✅ Audit logging confirmed
• ✅ CI workflows pass with Node.js

Closes

This PR should be merged to establish the Node.js/Electron codebase as the main branch.

[curiouscoder-cmd]

resolve the issues