Add Team Health Score Status Bar Indicator

[Copilot]

Adds a visual team health score indicator in the VS Code status bar showing color-coded health based on knowledge distribution and collaboration patterns.

Changes

• New src/core/health-indicator.ts

  • HealthIndicator class managing status bar item at priority 50
  • Color-coded display: 🟢 healthy (≥70), 🟡 moderate (40-69), 🔴 needs attention (<40)
  • Health score calculation using weighted metrics:
    • Knowledge distribution (40%): Gini coefficient of contributions, single points of failure
    • Activity spread (30%): Recent activity percentage, workload balance
    • Collaboration (30%): Cross-team work, code review participation, knowledge sharing
  • Rich tooltip with score breakdown
  • Click handler showing detailed Quick Pick breakdown with action items

• Updated src/extension.ts

  • Initialize and register HealthIndicator
  • Update indicator after analysis completes
  • Restore state from previous analysis on startup

• Updated package.json

  • Register teamxray.showHealthDetails command

Usage

After running repository analysis, the status bar shows:

$(heart) 75    ← Green heart icon with score

Hovering displays breakdown; clicking opens detailed view with refresh/report actions.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add Team Health Score Status Bar Indicator</issue_title>
<issue_description>## Description
Add a visual team health score indicator in the VS Code status bar that shows a color-coded health score based on knowledge distribution and team collaboration patterns.

Acceptance Criteria

• Create status bar item showing team health score
• Color-coded indicator: 🟢 Green (healthy), 🟡 Yellow (moderate), 🔴 Red (needs attention)
• Click to see detailed breakdown
• Update automatically after analysis
• Tooltip shows quick summary

Health Score Calculation

Consider factors like:

• Knowledge distribution (bus factor)
• Recent activity spread across team
• Documentation coverage
• Code review participation

Technical Notes

• Use vscode.window.createStatusBarItem()
• Position: StatusBarAlignment.Right
• Priority: Lower than other items
• Follow existing UI patterns in the extension

Files to Modify/Create

• src/core/health-indicator.ts (new) - Health score logic
• src/extension.ts - Register status bar item
• src/types/ - Add health score types if needed

Demo Value

Demonstrates Copilot coding agent's ability to:

• Create VS Code UI elements
• Implement business logic/algorithms
• Work with existing data structures
• Add interactive components</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add Team Health Score Status Bar Indicator #11

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