[Testing] No fuzz target for multisig_governance despite a multi-step timelock/threshold state machine

[grantfox-oss]

Telegram (ask questions / claim the issue here first): https://t.me/+DOylgFv1jyJlNzM0

Why this matters

The fuzz crate (fuzz/Cargo.toml) declares targets for lending_pool, loan_manager, and remittance_nft but lists no governance dependency or target, and multisig_governance is not even a dependency of the fuzz crate. The governance contract in multisig_governance/src/lib.rs has a non-trivial state machine (propose/approve/finalize/cancel/expire with timelock, threshold, reproposal cooldown, TTL) well suited to property fuzzing.

Acceptance criteria

• Add multisig_governance as a fuzz dependency and a new fuzz target
• Model arbitrary sequences of propose/approve/finalize/cancel/expire with arbitrary signers, thresholds, and time advances
• Assert invariants: finalize only with threshold met and timelock elapsed and before TTL expiry; no duplicate-signer threshold bypass; admin only changes via finalize
• Register the new [[bin]] in fuzz/Cargo.toml

Files to touch

• fuzz/Cargo.toml
• multisig_governance/src/lib.rs

Out of scope

• Cross-contract finalize against a real target contract
• CI fuzz orchestration

[Eniola3321]

please can i work on the issue

[davidmaronio]

Please assign this issue to me, i've worked on a similar task, and i can deliver quickly ETA~3hrs

[Francis6-git]

I will add "multisig_governance" to the fuzzing suite and create a new fuzz target that models arbitrary governance actions, signer behavior, threshold settings, and time progression.

ETA 12 hours.

[grantfox-oss]

🦊 GrantFox — @Francis6-git has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #22)
2. Your PR will be reviewed by the LabsCrypt maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@Francis6-git's PR #28 was approved and merged by @ogazboiz.

🏆 @Francis6-git: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (223 total points). Track your full progress on GrantFox.

👏 Great work, @Francis6-git! Keep contributing to LabsCrypt.