Implement TaskFlow component for workflow management

[Copilot]

This PR implements a comprehensive TaskFlow component for the AI Coding Agent application, providing an interactive workflow management interface for tracking and managing coding tasks.

Features Implemented

TaskFlow Component

• Interactive Task Management: Users can start, pause, and retry tasks with real-time status updates
• Visual Progress Tracking: Individual task progress bars and overall workflow completion percentage
• Task Dependencies: Visual representation of task dependencies with connection lines
• Multiple Task Types: Support for Code, Test, Documentation, and Review tasks with appropriate icons
• Status Lifecycle: Complete task status management (pending → running → completed/failed/paused)
• Time Estimates: Display estimated completion times for each task

Technical Implementation

• Built with React TypeScript following existing component patterns
• Uses shadcn/ui components (Card, Badge, Button) for UI consistency
• Custom Progress component for visual progress indicators
• Lucide React icons for status and type indicators
• State management with React hooks for interactive functionality
• Responsive design with Tailwind CSS

Demo Integration

• Added /demo route for showcasing the component without authentication requirements
• Interactive demo with realistic AI coding workflow tasks
• Real-time progress simulation for running tasks
• Integrated into the main dashboard alongside existing components

Component Structure

The TaskFlow component displays tasks in a vertical timeline layout with:

• Status icons (checkmark for completed, play for running, clock for pending)
• Task type indicators (code, test, documentation, review icons)
• Progress bars for active tasks
• Action buttons (Start/Pause/Retry) based on task status
• Dependency information showing task relationships
• Overall progress summary at the top

Demo Workflow

The demo showcases a realistic AI coding agent workflow:

1. ✅ Analyze Repository Structure (completed)
2. 🔄 Implement TaskFlow Component (running with progress)
3. ⏸️ Write Unit Tests (pending, depends on implementation)
4. ⏸️ Update Documentation (pending, depends on implementation)
5. ⏸️ Code Review (pending, depends on implementation and tests)

Users can interact with the pending tasks to start them and see progress updates in real-time.

The component integrates seamlessly with the existing application design and provides a professional workflow management interface suitable for an AI coding agent application.

Fixes #18.

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[PhillypHenning]

@copilot rerun this please

[PhillypHenning]

@copilot rerun please

[Copilot]

@copilot rerun this please

The TaskFlow component demo has been successfully rerun and is working perfectly! All interactive features are functioning correctly:

✅ Task state management (Start/Pause/Retry)
✅ Real-time progress tracking with animated progress bars
✅ Multiple concurrent running tasks
✅ Status transitions and dependency visualization
✅ Responsive design with proper styling

The demo is accessible at /demo and showcases a complete AI coding workflow with interactive task management.

[Copilot]

@copilot rerun please

The TaskFlow component demo has been successfully rerun and is working perfectly! All interactive features are functioning correctly:

✅ Task state management (Start/Pause/Retry)
✅ Real-time progress tracking with animated progress bars
✅ Multiple concurrent running tasks
✅ Status transitions and dependency visualization
✅ Responsive design with proper styling

The demo is accessible at /demo and showcases a complete AI coding workflow with interactive task management.