Update compatibility metadata for KSP 1.12.5

[Sean-Kenneth-Doherty]

Summary

Updates the release metadata for a KSP 1.12.5-compatible 1.4.4 build:

• bumps the AVC version and assembly metadata from 1.4.3 to 1.4.4
• updates the supported KSP range through KSP 1.12.x
• fixes the existing trailing comma in DMagicOrbitalScience.version so the file parses as strict JSON
• adds a short changelog entry

This overlaps with the compatibility intent in #97, but keeps a conservative KSP 1.12.x upper bound instead of removing the cap entirely, and includes the strict JSON cleanup plus build validation.

Validation

• python -m json.tool GameData/DMagicOrbitalScience/DMagicOrbitalScience.version
• xbuild /p:Configuration=Release /p:ReferencePath="/home/sean/.local/share/Steam/steamapps/common/Kerbal Space Program/KSP_Data/Managed" /p:IntermediateOutputPath="obj/Release/" /p:OutputPath="../GameData/DMagicOrbitalScience/Plugins/" Source/DMagicOrbital.csproj
  • build succeeded against KSP 1.12.5.3190 assemblies with one pre-existing CS0108 warning
• monodis --assembly GameData/DMagicOrbitalScience/Plugins/DMagic.dll
  • reports Version: 1.4.4.0

I have not done an in-game smoke test yet.

[Sean-Kenneth-Doherty]

Closing this under the stricter review bar: this is mostly compatibility/version metadata and overlaps existing release discussion without a maintainer request or KSP 1.12.5 runtime proof. A narrowed JSON-only repair could be revisited separately if useful, but I do not want to spend maintainer review time on this PR as-is.