some lil fixes for kibou compatibility

internal/api/security/robots.go

@@ -0,0 +1,17 @@
+package security
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+const robotsString = `User-agent: *
+Disallow: /
+`
+
+// RobotsGETHandler returns the most restrictive possible robots.txt file in response to a call to /robots.txt.
+// The response instructs bots with *any* user agent not to index the instance at all.
+func (m *Module) RobotsGETHandler(c *gin.Context) {
+	c.String(http.StatusOK, robotsString)
+}