Summary

This PR introduces an emergency withdrawal timelock mechanism to the TestArbitrage contract. The new variable emergencyUnlockTime enforces a delay window for executing emergency withdrawals, improving the contract’s security posture against sudden malicious or rushed withdrawals.

Changes

• New State Variable:

  • uint256 public emergencyUnlockTime;
    • Tracks the timestamp after which emergency withdrawals can be executed.
    • Protects against immediate and unauthorized withdrawal attempts.

• NatSpec Comments:

  • Added clear @notice and @dev annotations to document purpose and behavior.

• Formatting:

  • Applied forge fmt for consistent Solidity style and readability.

Motivation

• Security Hardening: Introduces a grace period before emergency withdrawals can occur, reducing risk from compromised keys or panic-triggered withdrawals.
• Operational Safety: Gives contract owners and stakeholders time to react and potentially pause contracts or revoke permissions in critical situations.
• Transparency: Clear documentation makes this mechanism auditable and easier for integrators to understand.

Next Steps

• Implement setter function(s) for configuring the emergencyUnlockTime.
• Add enforcement logic in emergency withdrawal functions (e.g., require current timestamp >= emergencyUnlockTime).
• Write tests to verify:
  • Withdrawal attempts before timelock expiry revert.
  • Successful withdrawal after timelock passes.
  • Timelock behaves consistently across multiple invocations.