Merge pull request #32 from TheZeekA/main

[TheZeekA]

Sync testing with main (v2.0.0)

Summary

Testing

• Build succeeds (go build . from src/, not naming ZeeCrypt.go directly)
• Encrypt → decrypt round-trip: normal mode
• Encrypt → decrypt round-trip: paranoid mode
• Encrypt → decrypt round-trip: keyfiles (ordered and unordered)
• Encrypt → decrypt round-trip: deniability
• Encrypt → decrypt round-trip: Reed-Solomon
• Encrypt → decrypt round-trip: split/recombine
• Wrong password on decrypt still fails as expected
• Not applicable (docs/CI/packaging-only change)

Breaking changes