fix: k1 validator 0 address check

[livingrockrises]

based on
https://github.com/bcnmy/nexus/pull/198/files#r1790412333

[github-actions]

🤖 Slither Analysis Report 🔎

Slither report

# Slither report

THIS CHECKLIST IS NOT COMPLETE. Use --show-ignored-findings to show all the results.
Summary
🟡 - locked-ether (1 results) (Medium)
🟡 - unused-return (1 results) (Medium)

• constable-states (2 results) (Optimization)

locked-ether

🟡 Impact: Medium
🔴 Confidence: High

• ID-0
  Contract locking ether found:
  Contract NexusBootstrap has payable functions:
  • ModuleManager.receive()
  • ModuleManager.fallback(bytes)
    But does not have a function to withdraw the ether

utils/NexusBootstrap.sol#L33-L165

unused-return

🟡 Impact: Medium
🟡 Confidence: Medium

• ID-1
  ERC7739Validator._hashTypedDataForAccount(address,bytes32) ignores return value by (name,version,chainId,verifyingContract) = EIP712(account).eip712Domain()

base/ERC7739Validator.sol#L279-L309

constable-states

Impact: Optimization
🔴 Confidence: High

• ID-2
  RegistryAdapter.registry should be constant

base/RegistryAdapter.sol#L10

• ID-3
  RegistryFactory.threshold should be constant

factory/RegistryFactory.sol#L39

_This comment was automatically generated by the GitHub Actions workflow._

[openzeppelin-code]

fix: k1 validator 0 address check

Generated at commit: 452bf0c07a1f96ad687a2f2fc4a55cf326fb31aa

🚨 Report Summary

	Severity Level	Results
Contracts	Critical High Medium Low Note Total	1 1 0 6 26 34

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For more details view the full report in OpenZeppelin Code Inspector

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.68%. Comparing base (d312888) to head (452bf0c).
Report is 12 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #199      +/-   ##
==========================================
- Coverage   85.69%   85.68%   -0.02%     
==========================================
  Files          14       14              
  Lines         923      943      +20     
  Branches      251      256       +5     
==========================================
+ Hits          791      808      +17     
- Misses        117      120       +3     
  Partials       15       15              

Files with missing lines	Coverage Δ
contracts/modules/validators/K1Validator.sol	71.08% <100.00%> (+0.35%)	⬆️

... and 1 file with indirect coverage changes

---

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