Fixes

[JSE19]

📌 Description

This PR fixes a bug in the voting verification flow where admin_verify() and verify_with_votes() could mark a campaign as verified even if it was cancelled or inactive. The change adds an explicit CampaignNotActive guard before flipping is_verified, preventing invalid verification state transitions.

🔗 Related Issues

Closes #160
Closes #161
Closes #162
Closes #163

🧪 Changes Made

• Bug fix
• New feature
• Refactor
• Documentation update

✅ Checklist

• Code compiles successfully
• Tests added/updated and passing
• Linting passes (no warnings/errors)
• Documentation updated (if required)
• No breaking changes

⚠️ Breaking Changes

None.

📸 Screenshots (if applicable)

N/A

🧩 Additional Notes

• Only voting.rs and test_voting_verify.rs were changed.
• Added regression tests for:
  • admin_verify on a cancelled campaign
  • verify_with_votes on a cancelled campaign
• Verified with the voting verification test suite (cargo test test_voting_verify -- --nocapture).

[sshdopey]

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[sshdopey]

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