Feature/insight arena enhancements

[devpeter999]

Implemented several backend features to improve market engagement, admin reporting, user experience, and GDPR compliance.

Changes:

• Market Comments/Discussion ([Backend] Market Comments/Discussion #441):
  • Created a new Comment entity and migration.
  • Added endpoints: POST /markets/:id/comments and GET /markets/:id/comments.
  • Implemented support for nested replies.
  • Added admin moderation endpoint: PATCH /admin/comments/:id/moderate.
• Admin Activity Reports ([Backend] Admin Reports - Platform Activity #439):
  • Added GET /admin/reports/activity endpoint (Admin only).
  • Provides metrics for user growth, market creation trends, and platform revenue.
  • Supports timeframe filtering (daily, weekly, monthly) and export in JSON or CSV formats.
• Market Templates ([Backend] Market Templates #444):
  • Created MarketTemplate entity and migration with seed data.
  • Added GET /markets/templates endpoint to help users create markets with predefined data.
• User Data Export ([Backend] User Data Export #437):
  • Implemented GET /users/me/export for GDPR compliance.
  • Aggregates and returns all user-related data (profile, predictions, markets, notifications, competition history) as a JSON file.

Fixes: #441 fixed
Fixes: #439 fixed
Fixes: #444 fixed
Fixes: #437 fixed

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Project	Deployment	Actions	Updated (UTC)
insight-arena-4rll	Ready	Preview, Comment	Mar 29, 2026 9:21pm

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