This rule provides monitoring alerting layer for elevated international transactions that warrant analyst attention without automatic holds.

Generates ALERT when:
1. Transaction amount exceeds AED 25,000
2. Card is international (foreign-issued)
3. Value is substantial but below critical HOLD threshold

Alert-only approach appropriate because:
- Amount is significant but not catastrophic if fraud occurs
- Many legitimate international business transactions fall in this range
- Auto-holding risks disrupting valid cross-border commerce
- Analyst can monitor in real-time and escalate if needed
- Enables pattern detection without transaction friction

Fraud analyst reviews for:
- Merchant type appropriateness for amount
- Card usage patterns and geographic consistency
- Known fraud indicators or blacklist matches
- Can escalate to HOLD if investigation raises red flags