Dev checklist v0.0.2

[0.0.2] - 2025-06-12

Added

• Icon status indicator for checklist headers: ✅ (complete), 🟡 (in progress), ⬜ (empty)
• Custom SVG icon support for sub-items and status icons
• Live timer display for task items while timer is running
• Automatic progress calculation per header (percentage of completed items)
• Improved visuals for item states and date display

Changed

• Refactored getTreeItem to conditionally apply iconPath based on progressStatus
• Cleaned up and improved readability of ChecklistProvider logic

Fixed

• Timer was not resetting properly on stop — now handles intervals cleanly