Enhanced Token Smart Contract

[preciouseke]

Summary
Implements a comprehensive token airdrop distribution system with Merkle proof verification and batch processing capabilities for efficient token distribution campaigns.
Key Features

• Merkle Tree Verification: Secure claim validation using cryptographic proofs
• Batch Operations: Process up to 100 recipient allocations and 50 distributions per transaction
• Campaign Management : Time-bound campaigns with configurable duration and emergency stop functionality
• Authorization System: Role-based access control for distributors and contract owner
• Dual Claim Methods : Support for both pre-allocated claims and Merkle proof-based claims

Technical Highlights

• SIP-010 token standard compatibility
• Gas-optimized batch processing with fold operations
• Comprehensive error handling (11 distinct error codes)
• Anti-double-claim protection
• Contract balance validation and withdrawal mechanisms
  Security Features
• Owner-only administrative functions
• Authorized distributor validation
• Campaign expiration checks
• Insufficient balance protection
• Merkle proof integrity verification