Implement Soroban SAC Interaction Analyzer

[mijinummi]

🧠 Concept

Analyze interactions with Stellar Asset Contract interfaces.

⚠️ Problem

SAC interactions can introduce repeated calls and resource-heavy asset operations.

📁 Implementation Scope

• packages/analyzers/soroban/sac/
• packages/rules/soroban/sac/

✅ Requirements

• Detect SAC interactions
• Identify asset operations
• Track repeated calls
• Estimate resource impact

🎯 Acceptance Criteria

• SAC analyzer implemented
• SAC operations detected
• Repeated calls identified
• Resource impact reported