Create Event Replay Mechanism

# 🧠 Concept
Allow historical events to be reprocessed.

## ⚠️ Problem
Detection rules may change over time.

## 📁 Implementation Scope
- src/modules/replay/

## ✅ Requirements
- Replay event selection
- Batch processing
- Replay logging

## 🎯 Acceptance Criteria
- [ ] Events replayable
- [ ] Logs generated
- [ ] Results validated