feat: add weekly summary features and components

- Introduced `CategoryBreakdown`, `JiraWeeklyMetrics`, `PeriodSelector`, and `VelocityMetrics` components to enhance the weekly summary dashboard.
- Updated `WeeklySummaryClient` to manage period selection and PDF export functionality.
- Enhanced `WeeklySummaryService` to support period comparisons and activity categorization.
- Added new API route for fetching weekly summary data based on selected period.
- Updated `package.json` and `package-lock.json` to include `jspdf` and related types for PDF generation.
- Marked several tasks as complete in `TODO.md` to reflect progress on summary features.

package.json

@@ -20,8 +20,10 @@
     "@dnd-kit/sortable": "^10.0.0",
     "@dnd-kit/utilities": "^3.2.2",
     "@prisma/client": "^6.16.1",
+    "@types/jspdf": "^1.3.3",
     "clsx": "^2.1.1",
     "date-fns": "^4.1.0",
+    "jspdf": "^3.0.3",
     "next": "15.5.3",
     "prisma": "^6.16.1",
     "react": "19.1.0",