Activity Feed (api/activity.php + scenes/activity.js):
- Fetches friend + self activity from activity_feed table
- Enriches with actor profile (name, avatar)
- Timeline UI with action labels in Arabic
- Relative timestamps

Battle Pass (api/battlepass.php):
- Season config: 30 tiers, 100 XP per tier
- Current tier from player total XP
- Free + premium reward tracks
- Claim tier endpoint
- Days remaining counter
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>