Shared Wallet Smart Contract 💼🔐

A Shared Wallet smart contract where the owner can add users with a monthly spending limit. Users can withdraw ETH only within their assigned limits, and the limit resets automatically after 30 days.

✅ Deployed & Verified on Sepolia Testnet.

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🚀 Features

• ✅ Owner-controlled shared wallet
• ✅ Add/remove users with monthly spending limits
• ✅ Users can withdraw ETH within allowed monthly limit
• ✅ Automatic monthly spending reset (after 30 days)
• ✅ Secure withdrawals using .call
• ✅ Custom Solidity errors for gas efficiency
• ✅ Fully tested using Hardhat + Mocha + Chai
• ✅ Gas usage report included

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📜 Verified Contract (Sepolia)

• Contract Address: 0xE766DA58F87d42Dec8AF04831fa0a0D057e437e5
• Etherscan (Verified Code):
  https://sepolia.etherscan.io/address/0xE766DA58F87d42Dec8AF04831fa0a0D057e437e5#code

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🛠 Tech Stack

• Solidity ^0.8.20
• Hardhat
• Ethers.js
• Mocha + Chai
• OpenZeppelin (not required, pure contract logic)
• Sepolia Testnet Deployment
• Etherscan Verification

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📂 Project Structure