Interface MilestoneArchiveEntry

MilestoneArchiveEntry - Archived milestone data

Captures milestone summary and metrics when archived. Stored in MILESTONE-ARCHIVE.md (append mode).

Fields:

• name: Milestone name
• scope: What the milestone delivered
• phases: Array of phase numbers that were included
• startedAt: ISO date when first phase started (null if not started)
• completedAt: ISO date when milestone was completed
• plansCompleted: Number of plans completed
• totalPlans: Total number of plans across all phases
• executionTime: Human-readable execution time (e.g., "2.5 hours")
• requirementsAddressed: Array of requirement IDs addressed