DEPRECATED FEATURE: Implement custom push notification service

⚠️ WARNING: This feature may be wasted effort

Task

Build custom push notification service instead of using FCM

Original Requirements

• Custom WebSocket connection for push
• Battery-optimized background service
• Notification scheduling and batching
• Custom notification UI

CONCERN

This duplicates Firebase Cloud Messaging (FCM) functionality which is:

• Industry standard
• Battery optimized by Google
• Free and reliable
• Already integrated in most apps

Risk Assessment

• HIGH complexity
• MEDIUM business value
• LOW competitive advantage
• Battery drain concerns
• Maintenance burden

Recommendation

SHOULD BE DEPRECATED - Use FCM instead

@michaelusa @dmitry Please review before proceeding

Estimated effort (if proceeding)

3-4 weeks