[Feature Request] Add Bytecode Verification Status with Warnings to provide secure source code display

[apenzk]

🚀 Feature Request Description

Integrate bytecode verification status display in the explorer to show warnings when source code doesn't match deployed bytecode.

Is your feature request related to a problem? Please describe your use case.

The explorer currently displays source code from PackageRegistry without verifying that it matches the deployed bytecode. This creates a security vulnerability where malicious actors can provide fake source code that doesn't match what's actually running on-chain, misleading users into thinking they're viewing the actual contract code.

Impact:

• High: Users cannot trust the source code displayed in the explorer
• Exploit: Deployers can publish contracts with intentionally misleading source code
• User Risk: Developers and auditors may make decisions based on incorrect source code

Expected Behavior

Describe the solution you would like

• Explorer should query node verification status before displaying code
• If verification is enabled and passes (verified: true): Show code normally
• If verification is enabled and fails (verified: false): Show code with warning
• If verification is disabled or unavailable: Hide code with appropriate message

The explorer should integrate with the node-side bytecode verification API endpoint:

• GET /v1/accounts/{address}/modules/{module_name}/verification_status
• Query verification status before displaying source code
• Display appropriate warnings or hide code based on verification results
• Provide clear user feedback for all states (loading, verified, failed, disabled)

Additional context

Current Behavior:

• Explorer fetches source code from PackageRegistry metadata and displays it directly
• No verification mechanism exists to check if source matches bytecode
• Users see a disclaimer but code is still shown without verification

Solution:
This issue is addressed by a PR that integrates the bytecode verification API endpoint into the explorer UI.

Testing:
A test setup is available at analysis-explorer-vulnerability that demonstrates:

• Valid contract with matching source/bytecode
• Invalid contract with mismatched source/bytecode

Are you willing to open a pull request? (See CONTRIBUTING)

Yes, a pull request is ready that implements this feature.