Enhance API and error handling for video services

- Updated .gitignore to exclude cache files.
- Refactored main.go to streamline route registration and improve code organization.
- Added detailed comments in auth_handler.go, video_handler.go, and service files for better clarity on request handling and service logic.
- Improved error messages in video_handler.go to provide clearer feedback to users in Chinese.
- Introduced context handling in service methods to manage request timeouts effectively.

cmd/api/main.go

@@ -2,31 +2,35 @@ package main
 
 import (
 	"log"
-	"net/http"
 
 	"github.com/gin-gonic/gin"
 
 	"wx_service/config"
 	"wx_service/internal/database"
 	"wx_service/internal/handler"
-	"wx_service/internal/middleware"
 	"wx_service/internal/model"
+	"wx_service/internal/routes"
 	"wx_service/internal/service"
 )
 
 func main() {
+	// 1) 加载配置（通常来自环境变量 / .env）
 	config.LoadConfig()
 
+	// 2) 初始化数据库连接
 	if err := database.InitDB(); err != nil {
 		log.Fatalf("init database failed: %v", err)
 	}
+	// 3) 自动建表/迁移（开发阶段很方便；生产环境可改为手动迁移）
 	if err := database.AutoMigrate(&model.MiniProgram{}, &model.User{}, &model.VideoParseLog{}, &model.VideoParseUnlock{}); err != nil {
 		log.Fatalf("auto migrate failed: %v", err)
 	}
 
+	// 4) 初始化 HTTP 框架（Gin）
 	gin.SetMode(config.AppConfig.Server.Mode)
 	router := gin.Default()
 
+	// 5) 依赖注入：先创建 service，再创建 handler（handler 只关心 HTTP 输入/输出）
 	miniProgramService := service.NewMiniProgramService(database.DB)
 	authService := service.NewAuthService(database.DB, miniProgramService)
 	authHandler := handler.NewAuthHandler(authService)
@@ -36,21 +40,10 @@ func main() {
 	}
 	videoHandler := handler.NewVideoHandler(videoService)
 
-	api := router.Group("/api/v1")
-	{
-		api.POST("/auth/login", authHandler.LoginWithWeChat)
-		protected := api.Group("")
-		protected.Use(middleware.AuthMiddleware(database.DB))
-		{
-			protected.POST("/video/remove_watermark", videoHandler.RemoveWatermark)
-			protected.POST("/video/remove_watermark/unlock", videoHandler.UnlockQuota)
-		}
-	}
-
-	router.GET("/healthz", func(c *gin.Context) {
-		c.JSON(http.StatusOK, gin.H{"status": "ok"})
-	})
+	// 6) 注册路由：把 URL 映射到 handler
+	routes.Register(router, database.DB, authHandler, videoHandler)
 
+	// 7) 启动监听端口
 	addr := ":" + config.AppConfig.Server.Port
 	if err := router.Run(addr); err != nil {
 		log.Fatalf("server stopped: %v", err)