new compy

[alexcos20]

Fixes # .

Changes proposed in this PR:

• erc upgradable proxy
• adminBurn - allows admins to burn tokens from specific address
• GrantToken is now pausable
• erc20 transfers are based on allow list

[alexcos20]

/run-security-scan

[alexcos20]

AI automated code review (Gemini 3).

Overall risk: low

Summary:
This is a solid and well-executed PR migrating GrantsToken to an upgradeable UUPS proxy pattern and adding allowlist/admin-burn capabilities. The transition to Initializable and UUPSUpgradeable follows OpenZeppelin best practices (such as _disableInitializers() in the constructor and correct use of __gap storage). The swap-and-pop allowlist implementation is highly efficient. I have left one minor note regarding a redundant override, but overall the code is clean, robust, and production-ready. LGTM!

Comments:
• [WARNING][security] The adminBurnFrom function introduces a significant centralization risk as the owner can unilaterally destroy tokens from any account. While the PR description clarifies this is an intentional fraud remediation feature, ensure the multisig controlling the owner role has strict operational security in place.
• [INFO][style] The cap() function is already defined as public view virtual in ERC20CappedUpgradeable. Overriding it just to return super.cap() is redundant and can be safely removed to keep the contract leaner.

-    function cap() public view override(ERC20CappedUpgradeable) returns (uint256) {
-        return super.cap();
-    }

• [INFO][other] Excellent use of uint256[47] private __gap;. This perfectly reserves 50 slots (accounting for the 3 slots used by _allowlist, _isAllowlisted, and _allowlistIndex, since the constant _DECIMALS does not occupy a storage slot) for future upgrades, following best practices for upgradeable contracts.
• [INFO][performance] Great use of the swap-and-pop algorithm here for array removal. This ensures O(1) gas complexity for removing elements from the allowlist, preventing potential out-of-gas issues for a growing array.

[openzeppelin-code]

new compy

Generated at commit: 32052af3d34a0dc836cb6e69f8caee656b41897a

🚨 Report Summary

	Severity Level	Results
Contracts	Critical High Medium Low Note Total	2 1 0 9 40 52
Dependencies	Critical High Medium Low Note Total	0 0 0 0 0 0

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For more details view the full report in OpenZeppelin Code Inspector