🔧 Initial Repository Setup for Smart Contract and Pinata IPFS Integration

[martinvibes]

PR Description:

This PR sets up the core infrastructure for smart contract interactions and Pinata IPFS integration.

Key Updates:

• Created /contracts directory for ABIs and addresses.
• Added smart contract connection utilities:
• Web3 provider setup, network detection, error handling.
• Implemented contract read/write utilities.
• Set up a multi-network configuration.
• Integrated Pinata IPFS:
• File upload, retrieval, unpinning, and metadata updates.
• Progress tracking, error handling, and retry logic.
• Added TypeScript interfaces for contracts and Pinata API.

This PR closes #80

This establishes a clean, scalable foundation for blockchain and IPFS operations.

[martinvibes]

@ONEONUORA kindly review :)

[ONEONUORA]

Nice implementation @martinvibes . Thank you for implementing the utils functions