Sync slice/internal → master

[github-actions]

Automated PR – triggered by commit e6235bf

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PR-Codex overview

This PR updates several smart contracts and tests in the Slice project, focusing on improving functionality, adding new features, and enhancing testing coverage for pricing strategies and on-chain actions.

Detailed summary

• Updated copyright year from 2022 to 2025.
• Added MockERC20 contract with minting functionality.
• Replaced address(0) with productOwner in various tests for improved clarity.
• Added new tests for ERC20Mint, ERC721Mint, FirstForFree, and NFTGated.
• Introduced new dependencies and updated the foundry.toml file.
• Enhanced error handling in ERC20Mint and ERC721Mint.
• Improved documentation in README.md regarding hooks and their usage.

The following files were skipped due to too many changes: test/pricingActions/FirstForFree/FirstForFree.t.sol

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