- Add Directory.Build.props with shared TargetFramework/Nullable/ImplicitUsings
- Add Directory.Packages.props for centralized NuGet version management
- Strip duplicated properties and Version attributes from all .csproj files
- Fix Directory.Build.props TFM from net10 to net10.0
- Configure npm workspaces in root package.json (Journal.App)
- Hoist node_modules to repo root with single lockfile
- Add node_modules/ to .gitignore
- Remove Journal.DevTool contents, keep as empty folder with .gitkeep
- Remove Journal.DevTool from solution and npm workspaces
Co-Authored-By: Oz <oz-agent@warp.dev>
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