DKG Core node installer-updates

[swamala]

Enhanced V8 Node Installer Script UI/UX Improvements

This PR introduces significant UI/UX improvements to the V8 node installer script, making it more user-friendly, visually appealing, and efficient. The changes focus on improving the user experience while maintaining all core functionality.

Key Improvements

1. Visual Enhancements

• Added styled boxes and borders around section headers using Unicode characters
• Implemented color-coded sections for better visual hierarchy
• Added progress indicators and status icons (✅, ❌, ⚠️) for clearer feedback
• Enhanced header styling with boxed layouts for major sections

2. User Input Improvements

• Added clear prompts with "▶" prefix for input fields
• Implemented hidden input for sensitive data (private keys)
• Added descriptive labels and help text for configuration options
• Standardized input format across all prompts

3. Menu System Enhancements

• Improved blockchain selection interface with checkbox-style options
• Enhanced environment selection UI with clear descriptions
• Added descriptive labels for database selection options
• Implemented consistent styling across all menu interfaces

4. Workflow Optimizations

• Fixed duplicate triplestore configuration prompt
• Eliminated redundant RPC endpoint requests for Gnosis and Base chains
• Improved error handling and user feedback
• Added clear progress indicators for long-running operations

5. Configuration Sections

• Enhanced wallet configuration UI with better organization
• Improved operator fee input with clear validation
• Better organized blockchain selection with visual grouping
• Added clear section breaks between configuration steps

6. Installation Summary

• Added a comprehensive installation completion screen
• Included node configuration summary
• Listed available management commands with descriptions
• Added clear instructions for post-installation steps

7. Code Organization

• Improved function organization and naming
• Added consistent error handling
• Implemented better variable management
• Added comments for better code maintainability

Technical Details

Branch Selection Logic

• Mainnet environment now uses v6/release/mainnet branch
• Testnet environment uses v6/release/testnet branch
• Added clear environment selection UI

RPC Endpoint Management

• Implemented storage of RPC endpoints to avoid duplicate prompts
• Added validation for endpoint inputs
• Improved error handling for RPC configuration

UI Components

╔════════════════════════════╗
║        Section Title       ║
╚════════════════════════════╝

• Added consistent box styling for major sections
• Implemented color coding for different types of information
• Added progress indicators for installation steps

Testing

The script has been tested for:

• Fresh installations
• Upgrade scenarios
• Different environment selections
• Various blockchain combinations
• Error handling scenarios

Impact

These improvements make the installer:

• More intuitive for new users
• More efficient for experienced users
• Less prone to user input errors
• More visually appealing
• More informative about the installation process

Screenshots

[Consider adding before/after screenshots of key UI improvements]