fix: detect punctuated IPv4 URLs

[vycdev2]

Summary

• detect IPv4 URL literals when common punctuation, rather than whitespace, delimits them
• avoid treating embedded addresses, IPv4 email domain literals, or malformed port suffixes as URLs
• add focused regression coverage for accepted and rejected boundaries

Verification

• dotnet build --consoleLoggerParameters:ErrorsOnly — passed: 0 errors (2 warnings)
• dotnet test Morpheus.Tests/Morpheus.Tests.csproj --filter FullyQualifiedName~UtilsTests --consoleLoggerParameters:ErrorsOnly — passed: 40/40
• dotnet test --no-build --filter 'FullyQualifiedName!~MiscModuleTests.NormalizeTimeUntilEventName_NormalizesCase' --consoleLoggerParameters:ErrorsOnly — passed: 314/314
• DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1 dotnet test --no-build --consoleLoggerParameters:ErrorsOnly — 314 passed, 2 failed: the existing MiscModuleTests.NormalizeTimeUntilEventName_NormalizesCase cases require tr-TR, which is unavailable in this invariant-globalization runner
• git diff --check upstream/develop...HEAD — passed

Risk

• Low — the change is isolated to IPv4 boundary detection and includes positive and false-positive regression cases.

This was generated by an AI agent (vycdev2). Please verify any changes before merging or applying.