first commot

WebApi/Program.cs

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+using FreeSql;
+using Scalar.AspNetCore;
+using Serilog;
+using Service.AppSettingModel;
+using Yitter.IdGenerator;
+
+// 初始化雪花算法ID生成器
+var options = new IdGeneratorOptions(1); // WorkerId 为 1，可根据实际部署情况调整
+YitIdHelper.SetIdGenerator(options);
+
+var builder = WebApplication.CreateBuilder(args);
+
+// 配置 Serilog
+builder.Host.UseSerilog((context, loggerConfig) =>
+{
+    loggerConfig.ReadFrom.Configuration(context.Configuration);
+});
+
+// Add services to the container.
+builder.Services.AddControllers();
+builder.Services.AddOpenApi();
+builder.Services.AddHttpClient();
+
+// 配置 CORS
+builder.Services.AddCors(options =>
+{
+    options.AddDefaultPolicy(policy =>
+    {
+        policy.WithOrigins("http://localhost:5173")
+              .AllowAnyHeader()
+              .AllowAnyMethod();
+    });
+});
+
+// 绑定配置
+builder.Services.Configure<EmailSettings>(builder.Configuration.GetSection("EmailSettings"));
+builder.Services.Configure<AISettings>(builder.Configuration.GetSection("OpenAI"));
+
+// 配置 FreeSql + SQLite
+var dbPath = Path.Combine(AppContext.BaseDirectory, "database");
+if (!Directory.Exists(dbPath))
+{
+    Directory.CreateDirectory(dbPath);
+}
+
+// 使用绝对路径作为数据库文件路径
+var dbFilePath = Path.Combine(dbPath, "EmailBill.db");
+var connectionString = $"Data Source={dbFilePath}";
+Log.Information("数据库路径: {DbPath}", dbFilePath);
+
+var fsql = new FreeSqlBuilder()
+    .UseConnectionString(DataType.Sqlite, connectionString)
+    .UseAutoSyncStructure(true)
+    .UseLazyLoading(true)
+    .UseMonitorCommand(
+        cmd => 
+        {
+            Log.Information("执行SQL: {Sql}", cmd.CommandText);
+        }
+    )
+    .Build();
+
+builder.Services.AddSingleton(fsql);
+
+// 自动扫描注册服务和仓储
+builder.Services.AddServices();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+    app.MapScalarApiReference();
+}
+
+// 启用静态文件服务
+app.UseDefaultFiles();
+app.UseStaticFiles();
+
+// 启用 CORS
+app.UseCors();
+
+app.MapControllers();
+
+// 添加 SPA 回退路由（用于前端路由）
+app.MapFallbackToFile("index.html");
+
+// 启动后台邮件抓取服务（必须只注册一次）
+app.Lifetime.ApplicationStarted.Register(() =>
+{
+    try
+    {
+        if (app.Services.GetRequiredService<IEmailBackgroundService>() is not EmailBackgroundService emailService)
+        {
+            return;
+        }
+
+        // 检查是否已在运行，避免重复启动
+        if (!emailService.IsBusy)
+        {
+            emailService.RunWorkerAsync();
+        }
+    }
+    catch (Exception ex)
+    {
+        var logger = app.Services.GetRequiredService<ILogger<Program>>();
+        logger.LogError(ex, "启动后台服务失败");
+    }
+});
+
+app.Run();