Detect Missing Safe Transfer Checks

[mijinummi]

🧠 Concept

Detect unsafe token transfer handling.

⚠️ Problem

Unchecked token transfers may silently fail.

📁 Implementation Scope

• rules/security/tokens/

✅ Requirements

• Detect ignored transfer results
• Suggest SafeERC20 usage

🎯 Acceptance Criteria

• Unsafe transfers flagged