Protobuf file sharing endpoint

protobuf_sharing.cs

app.UseEndpoints(endpoints =>
        {
            endpoints.MapGet("/_proto/", async ctx =>
            {
                ctx.Response.ContentType = "text/plain";
                using var fs = new FileStream(Path.Combine(env.ContentRootPath, "Proto", "your.proto"), FileMode.Open, FileAccess.Read);
                using var sr = new StreamReader(fs);
                while (!sr.EndOfStream)
                {
                    var line = await sr.ReadLineAsync();
                    if (line != "/* >>" || line != "<< */")
                    {
                        await ctx.Response.WriteAsync(line);
                    }
                }
            });
        });