feat: ToNav-go v1.0.0 - 内部服务导航系统

功能:
- 前台导航: 分类Tab切换、实时搜索、健康状态指示、响应式适配
- 后台管理: 服务/分类CRUD、系统设置、登录认证(bcrypt)
- 健康检查: 定时检测(5min)、独立检查URL、三态指示(在线/离线/未检测)
- 云端备份: WebDAV上传/下载/恢复/删除、定时自动备份、本地备份管理

技术栈: Go + Gin + GORM + SQLite

main.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"tonav-go/database"
+	"tonav-go/handlers"
+	config "tonav-go/utils"
+
+	"github.com/gin-contrib/sessions"
+	"github.com/gin-contrib/sessions/cookie"
+	"github.com/gin-gonic/gin"
+)
+
+func main() {
+	cfg := config.LoadConfig()
+	database.InitDB(cfg.DBPath)
+	database.Seed()
+	handlers.StartHealthCheck()
+	handlers.StartAutoBackup()
+
+	r := gin.Default()
+	store := cookie.NewStore([]byte(cfg.SecretKey))
+	r.Use(sessions.Sessions("tonav_session", store))
+	r.Static("/static", "./static")
+
+	// 显式逐个加载，彻底杜绝路径猜测问题
+	r.LoadHTMLFiles(
+		"templates/index.html",
+		"templates/admin/login.html",
+		"templates/admin/dashboard.html",
+		"templates/admin/categories.html",
+		"templates/admin/services.html",
+		"templates/admin/change_password.html",
+	)
+
+	r.GET("/", handlers.IndexHandler)
+
+	r.GET("/admin/login", func(c *gin.Context) {
+		c.HTML(http.StatusOK, "login.html", nil)
+	})
+	r.POST("/admin/login", handlers.LoginHandler)
+	r.GET("/admin/logout", handlers.LogoutHandler)
+
+	admin := r.Group("/admin")
+	admin.Use(handlers.AuthRequired())
+	{
+		admin.GET("", func(c *gin.Context) {
+			c.Redirect(http.StatusFound, "/admin/dashboard")
+		})
+		admin.GET("/dashboard", handlers.DashboardHandler)
+		admin.GET("/services", handlers.ServicesPageHandler)
+		admin.GET("/categories", handlers.CategoriesPageHandler)
+		admin.GET("/change-password", handlers.ChangePasswordHandler)
+		admin.POST("/change-password", handlers.ChangePasswordHandler)
+
+		admin.GET("/api/services", handlers.GetServices)
+		admin.POST("/api/services", handlers.SaveService)
+		admin.PUT("/api/services/:id", handlers.SaveService)
+		admin.DELETE("/api/services/:id", handlers.DeleteService)
+		admin.GET("/api/categories", handlers.GetCategories)
+		admin.POST("/api/categories", handlers.SaveCategory)
+		admin.PUT("/api/categories/:id", handlers.SaveCategory)
+		admin.DELETE("/api/categories/:id", handlers.DeleteCategory)
+		admin.GET("/api/settings", handlers.GetSettings)
+		admin.POST("/api/settings", handlers.SaveSettings)
+		admin.POST("/api/backup/webdav", handlers.RunCloudBackup)
+		admin.GET("/api/backup/list", handlers.ListCloudBackups)
+		admin.DELETE("/api/backup/delete", handlers.DeleteCloudBackup)
+		admin.POST("/api/backup/restore", handlers.RestoreCloudBackup)
+	}
+
+	log.Printf("ToNav-go 启动在端口 %s...", cfg.Port)
+	r.Run(":" + cfg.Port)
+}