Service list and minio status (#13480)

### What problem does this PR solve?

1. Resolve standard user can access admin service
2. Get RAGFlow service status
3. Fix minio status fetching

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

internal/admin/router.go

@@ -46,6 +46,7 @@ func (r *Router) Setup(engine *gin.Engine) {
 		// Public routes
 		admin.GET("/ping", r.handler.Ping)
 		admin.POST("/login", r.handler.Login)
+		admin.GET("/logout", r.handler.Logout)
 
 		admin.POST("/reports", r.handler.Reports)
 
@@ -55,7 +56,6 @@ func (r *Router) Setup(engine *gin.Engine) {
 		{
 			// Auth
 			protected.GET("/auth", r.handler.AuthCheck)
-			protected.GET("/logout", r.handler.Logout)
 
 			// User management
 			protected.GET("/users", r.handler.ListUsers)