Resolves three open issues by implementing the required modules, fixing compilation errors, and closing a critical security bug.

[JONAH-6]

What This PR Does

Resolves three open issues by implementing the required modules, fixing compilation errors, and closing a critical governance security bug.

Changes by File

contracts/hello-world/src/storage.rs

• Rewrote incomplete storage definitions
• Added missing GovernanceDataKey, DataKey, and GuardianConfig
• Fixed compilation failures affecting governance, recovery, timelock, and credit-score modules

contracts/hello-world/src/governance.rs

• Fixed critical flash-loan governance attack
• Removed live balance overwrite that bypassed snapshot-based voting protections

contracts/hello-world/src/governance_test.rs

• Replaced placeholder tests with behavioural governance tests
• Added lifecycle, voting, execution, multisig, and integration coverage

contracts/hello-world/src/lib.rs

• Fixed governance test module path resolution
• Ensured src/governance_test.rs is compiled correctly

contracts/lending/src/insurance.rs

• Added missing Vec imports required by insurance pool logic

---

Security Fix

The governance vote() flow was vulnerable to flash-loan voting manipulation.

Snapshot-based voting power was correctly calculated, but then overwritten using a live token balance, allowing temporary borrowed balances to influence governance voting.

This PR removes the overwrite and restores proper snapshot-based protection.

---

Testing

• Added governance behavioural tests
• Verified proposal lifecycle logic
• Verified voting execution flow
• Verified timelock handling
• Verified multisig operations
• Verified event validation paths

Closes #332
Closes #329
Closes #330
Closes #331

[vercel]

@JONAH-6 is attempting to deploy a commit to the smartdevs17's projects Team on Vercel.

A member of the Team first needs to authorize it.