Feature Request: Dual Output Mode for Fossil Test (Text-Based and TUI)

[dreamer-coding]

Is your feature request related to a problem? Please describe.
Currently, Fossil Test only supports classic text-based output, which is clear but lacks interactivity and visual appeal. In scenarios with large test suites or tests that require real-time monitoring, a more dynamic and visually structured interface would improve usability and understanding. This limitation can make debugging or navigating test results more time-consuming.

Describe the solution you’d like
Introduce dual output modes to Fossil Test:
1. Text-Based Output (Default)
Retain the existing plain-text output for traditional use cases, such as CI/CD pipelines or simple terminal-based results.
2. TUI (Text User Interface) Mode
Add an interactive, curses-based TUI mode to visually represent test execution in real-time with enhanced clarity and functionality.

Command Proposal:
A new command-line flag could toggle between the two modes:
• --output=text (default)
• --output=tui

TUI Features:
1. Test Execution Summary Panel
• A live summary of total, passed, failed, and skipped tests.
• Highlighted in different colors:
• Green for passed tests.
• Red for failed tests.
• Yellow for skipped tests.
2. Real-Time Test Execution Log
• Display the name of the currently running test with a status indicator (e.g., Running, Passed, Failed).
• Update dynamically as the test suite executes.
3. Search and Filter Options
• Allow users to filter results based on status (passed, failed, skipped) or search for specific test names.
• Shortcut keys for navigation (n for next result, f for filter, etc.).
4. Detailed Test Output Section
• Select a test from the list to view its detailed output, including logs, errors, and stack traces.
• Keyboard navigation for scrolling through detailed logs.
5. Progress Bar
• A visual progress bar showing the overall execution progress, percentage completed, and estimated remaining time.
6. Keyboard Shortcuts (Example)
• q to quit TUI mode.
• f to filter by test result.
• p to pause/resume test execution (useful during live debugging).
7. Customizable Theme
• Options to switch between light and dark themes for better visual comfort.

Text-Based Output Enhancements:
1. Add optional verbosity levels (--verbose, --quiet).
• Verbose Mode: Detailed test execution logs.
• Quiet Mode: Minimal output, showing only the final summary.
2. Improve formatting with structured headers for different sections (e.g., summary, errors, logs).
3. Include visual symbols (e.g., checkmarks ✔, crosses ✘) alongside test statuses for a cleaner look.

Describe alternatives you’ve considered
• Using external TUI libraries to process and display Fossil Test outputs in a custom TUI, but this adds dependencies and is less convenient than native support.
• Relying on third-party test runners, though these often lack integration with Fossil Test’s unique features.

Additional context
A TUI would make Fossil Test more user-friendly, especially for developers running large test suites or needing live updates during debugging. The text-based output would still provide compatibility for pipelines and simpler use cases.