Modernize CLI Experience (Ratatui, Miette, and Enhanced DX)

[vernonthedev]

Description

To establish NestForge as a top-tier Rust framework, the CLI needs to move beyond basic text output. We need a "dope" terminal user interface (TUI) and robust error reporting that feels modern, intuitive, and visually polished. This involves integrating industry-standard Rust crates for rich terminal interactions and "beautiful" error diagnostics.

User Story

As a NestForge developer, I want a CLI that provides interactive prompts, clear progress indicators, and readable error messages so that I can manage my modular architecture with confidence and minimal friction.

Proposed Workflow

1. Interactive Scaffolding: Instead of just flags, nestforge new and nestforge generate should offer interactive TUI lists (using ratatui or enquirer-style prompts) to select modules, database drivers, or templates.
2. Advanced Error Diagnostics: Replace standard panic! or io::Error strings with miette reports that include code snippets, highlights, and "Help" suggestions.
3. Structured Command Parsing: Standardize all commands using clap (v4) with derive features for consistent help menus and shell completions.

Technical Tasks

• TUI Integration: Implement ratatui or inquire for interactive prompts during project initialization.
• Error Handling: Refactor the result types to use miette for "pretty" error reporting (e.g., highlighting a syntax error in a nestforge.toml file).
• Command Architecture: Migrate all current commands to a unified clap::Parser structure with subcommands.
• Visual Feedback: Integrate indicatif for high-performance progress bars during heavy tasks like project scaffolding or module compilation.
• Styling: Use console or owo-colors for consistent ANSI color-coding across different terminal themes.

Success Criteria

• Running nestforge without arguments shows a clean, color-coded help menu with categorized commands.
• Errors (like a missing config file) point to the exact line in the code/config using miette visual pointers.
• Complex commands (like nestforge init) use interactive select menus rather than requiring 5+ CLI flags.

Impact

This significantly boosts the "Professionalism" factor of the framework. A high-quality CLI lowers the barrier to entry for developers coming from the Node.js or Go ecosystems and makes the NestForge brand more memorable.

Technical Notes

• Crates to add: clap, ratatui, miette, indicatif, owo-colors.
• We should ensure the TUI components are optional or fall back to "Plain Text Mode" for CI/CD environments (using the NO_COLOR standard).

Labels

/cli /ux /dx /priority-high /architecture

[vernonthedev]

Worked on it in the latest application version for 1.4.0