Replaced `<TargetFramework>` with `<TargetFrameworks>` for future multi-targeting support. Added `<GenerateDocumentationFile>` to enable XML documentation generation. Included metadata properties such as `<PackageId>`, `<Authors>`, `<Company>`, and versioning details to enhance package identity. Added `<PackageTags>` for discoverability and `<UserSecretsId>` for secure development secrets management.