Add Ledger Entry Inspector with TTL Display

[Timi16]

Description

Display all ledger entries (instance, persistent, temporary) accessed during contract execution along with their TTL (time-to-live) values, and warn when entries are near expiration.

Requirements

• List all ledger entries read or written during execution
• Display storage type: Instance / Persistent / Temporary
• Show TTL for each entry
• Warn when entries are within a configurable threshold of expiration

Suggested Execution

1. Branch: git checkout -b feature/ledger-inspector
2. Create src/inspector/ledger.rs
3. Hook into host ledger entry access tracking
4. Display entries grouped by type after execution
5. Add --ttl-warn-threshold flag
6. Commit: feat: add ledger entry inspector with TTL display

Acceptance Criteria

• All accessed ledger entries listed
• Grouped by storage type (Instance/Persistent/Temporary)
• TTL displayed for each entry
• Near-expiry warnings shown in yellow
• Tests for each storage type

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[Abdulazeem-code]

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