chore: Migrate configuration files from JSON to HOCON format

- Add the dependency for the HOCON configuration provider package
- Update Program.cs to load .conf files instead of .json files
- Remove the original JSON configuration files
- Add the corresponding HOCON configuration files

Author: Yushu2606

src/Limekuma.csproj

@@ -27,10 +27,23 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Hocon" Version="2.0.4" />
+    <PackageReference Include="Hocon.Extensions.Configuration" Version="2.0.4" />
+    <PackageReference Include="Microsoft.NETCore.Platforms" Version="7.0.4" />
+    <PackageReference Include="NETStandard.Library" Version="2.0.3" />
     <PackageReference Include="SixLabors.Fonts" Version="2.1.3" />
     <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="2.1.7" />
     <PackageReference Include="Grpc.AspNetCore" Version="2.76.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="appsettings.conf">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="appsettings.Development.conf">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

src/Program.cs

@@ -1,7 +1,10 @@
+using Hocon.Extensions.Configuration;
 using Limekuma.Services;
 
 WebApplicationBuilder builder = WebApplication.CreateSlimBuilder(args);
 
+builder.Configuration.AddHoconFile("appsettings.conf", true, true)
+    .AddHoconFile($"appsettings.{builder.Environment.EnvironmentName}.conf", true, true);
 builder.Services.AddGrpc(options => options.EnableDetailedErrors = true);
 
 await using WebApplication app = builder.Build();

src/appsettings.Development.conf

@@ -0,0 +1,6 @@
+Logging {
+    LogLevel {
+        Default = "Information"
+        "Microsoft.AspNetCore" = "Warning"
+    }
+}

src/appsettings.Development.json

@@ -0,0 +1,12 @@
+Logging {
+    LogLevel {
+        Default = "Information"
+        "Microsoft.AspNetCore" = "Warning"
+    }
+}
+AllowedHosts = "*"
+Kestrel {
+    EndpointDefaults {
+        Protocols = "Http2"
+    }
+}