Add admin activity management: delete, create, and category awards

[prazgaitis]

Summary

Adds three admin activity management features:

1. Admin Delete Activity — New adminDeleteActivity mutation that soft-deletes activities and reverses all associated points, streaks, and category metrics. Added delete button with confirmation dialog to the flagged activity detail view.

2. Admin Create Activity Page — New admin page at /challenges/[id]/admin/log-activity with adminLogActivityForUser mutation. Allows admins to manually log activities on behalf of participants with optional points override and notes.

3. Category Leaders 4th/5th Place — Extended previewWeeklyAwards query to return top 5 placements instead of top 3. Updated category leaders page to display 4th and 5th place with muted styling and zero bonus points.

Changes

• Backend mutations (packages/backend/mutations/admin.ts):

  • adminDeleteActivity: Soft-deletes activity, reverses points/streaks/category metrics, adds history entry
  • adminLogActivityForUser: Creates activity for user with auto-calculated or overridden points

• Backend queries (packages/backend/queries/categoryLeaderAwards.ts):

  • previewWeeklyAwards: Returns top 5 placements (was top 3)

• Frontend pages:

  • New /challenges/[id]/admin/log-activity/page.tsx with form for creating activities
  • Updated /challenges/[id]/admin/layout.tsx to add "Log Activity" nav item

• Frontend components (apps/web/components/admin/flagged-activity-actions.tsx):

  • Added delete button with confirmation dialog
  • Integrated adminDeleteActivity mutation

• Admin category leaders (apps/web/app/challenges/[id]/admin/category-leaders/page.tsx):

  • Display 4th/5th place entries with reduced opacity
  • Show placement number instead of icon for honorable mentions
  • Muted text colors for non-top-3 entries

Testing

• pnpm lint
• pnpm typecheck
• Verify admin can delete activities and points are reversed
• Verify admin can create activities with auto-calculated or custom points
• Verify category leaders shows top 5 with correct styling and zero bonus for 4th/5th

Notes

• Delete operations are soft-deletes with audit trail via activityFlagHistory
• Activity creation respects challenge admin permissions (global admin, creator, or challenge admin)
• Points reversal includes category metrics and weekly category tracking

https://claude.ai/code/session_01FeKkPoze9PtGE659HyhKjA

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Project	Deployment	Actions	Updated (UTC)
march-fitness-2025	Ready	Preview, Comment	Apr 1, 2026 4:12pm