feat: add 服务端

PetWash.Api/Program.cs

@@ -0,0 +1,51 @@
+using Microsoft.EntityFrameworkCore;
+using PetWash.Api.Data;
+using PetWash.Api.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// 添加数据库
+builder.Services.AddDbContext<PetWashDbContext>(options =>
+    options.UseSqlite(builder.Configuration.GetConnectionString("DefaultConnection") ?? "Data Source=petwash.db"));
+
+// 添加服务
+builder.Services.AddSingleton<MqttService>();
+builder.Services.AddHostedService(provider => provider.GetRequiredService<MqttService>());
+builder.Services.AddScoped<OrderService>();
+
+// 添加CORS
+builder.Services.AddCors(options =>
+{
+    options.AddDefaultPolicy(policy =>
+    {
+        policy.AllowAnyOrigin()
+              .AllowAnyMethod()
+              .AllowAnyHeader();
+    });
+});
+
+builder.Services.AddControllers();
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// 初始化数据库
+using (var scope = app.Services.CreateScope())
+{
+    var db = scope.ServiceProvider.GetRequiredService<PetWashDbContext>();
+    db.Database.EnsureCreated();
+}
+
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseCors();
+app.UseHttpsRedirection();
+app.UseAuthorization();
+app.MapControllers();
+
+app.Run();