chore(build): 更新项目配置以启用代码分析并修改许可证

- 移除测试项目的警告级别设置
- 将包许可证从 MIT 更改为 Apache-2.0
- 为 GFramework 项目启用 .NET 代码分析器
- 保持目标框架 net8.0、net9.0 和 net10.0 的支持

GFramework.Core.Tests/GFramework.Core.Tests.csproj

@@ -7,7 +7,6 @@
         <Nullable>enable</Nullable>
         <IsPackable>false</IsPackable>
         <IsTestProject>true</IsTestProject>
-        <WarningLevel>0</WarningLevel>
     </PropertyGroup>
     <ItemGroup>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0"/>

GFramework.Godot.Tests/GFramework.Godot.Tests.csproj

@@ -7,7 +7,6 @@
         <Nullable>enable</Nullable>
         <IsPackable>false</IsPackable>
         <IsTestProject>true</IsTestProject>
-        <WarningLevel>0</WarningLevel>
     </PropertyGroup>
 
     <ItemGroup>

GFramework.csproj

@@ -8,7 +8,7 @@
         <Copyright>Copyright © 2025</Copyright>
         <RepositoryUrl>https://github.com/GeWuYou/GFramework</RepositoryUrl>
         <PackageProjectUrl>https://github.com/GeWuYou/GFramework</PackageProjectUrl>
-        <PackageLicenseExpression>MIT</PackageLicenseExpression>
+        <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
         <PackageTags>game;framework</PackageTags>
         <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
         <PublishRepositoryUrl>true</PublishRepositoryUrl>
@@ -16,6 +16,7 @@
         <PackageReadmeFile>README.md</PackageReadmeFile>
         <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
         <IncludeBuildOutput>false</IncludeBuildOutput>
+        <EnableNETAnalyzers>true</EnableNETAnalyzers>
         <!-- This package is a pure meta-package that only aggregates dependencies. -->
         <NoPackageAnalysis>false</NoPackageAnalysis>
     </PropertyGroup>