security: audit smart contracts

[diiabblo]

Description

Conduct comprehensive security audit of all smart contracts.

Scope

• SimpleTriviaGame.sol
• Faucet.sol
• All utility contracts

Deliverables

• Automated security scan
• Manual code review
• Gas optimization review
• Report with findings
• Remediation plan

Acceptance Criteria

• No critical vulnerabilities
• No high-risk issues
• All medium issues documented