refactor(deps): upgrade hardhat-deploy from v1.0.2 to v2.0.1

[s0wa48]

Changes

Dependency Update

• Bumps hardhat-deploy from ^1.0.2 to ^2.0.1 (major version upgrade)

Breaking Changes Addressed

hardhat-deploy v2 plugin registration

• hardhat-deploy v2 separates the ethers integration into a companion package hardhat-deploy-ethers. Added explicit require("hardhat-deploy-ethers") import in hardhat.config.js to ensure the ethers extensions (e.g., hre.ethers.getNamedSigners(), hre.ethers.getContractAt() with deployment names) remain available after the upgrade.

Package version bump

• Updated package.json to reference ^2.0.1

Notes

• The namedAccounts and networks configuration in hardhat.config.js remains compatible with v2's expected config shape.
• If hardhat-deploy-ethers is not already installed, run npm install --save-dev hardhat-deploy-ethers alongside this upgrade.
• Review any deploy scripts under deploy/ that use hre.deployments.deploy() or hre.getNamedAccounts() for any v2-specific behavioral changes around gas estimation or proxy handling.

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