feat: add revision number to proxy and layers to identify changes

internal/store/redis/proxy_item.go

@@ -8,7 +8,8 @@ import (
 )
 
 type proxyHeaderItem struct {
-	Name string `redis:"name"`
+	Name     string `redis:"name"`
+	Revision int    `redis:"revision"`
 
 	Weight  int  `redis:"weight"`
 	Enabled bool `redis:"enabled"`
@@ -19,9 +20,10 @@ type proxyHeaderItem struct {
 
 func (i *proxyHeaderItem) ToProxyHeader() (*store.ProxyHeader, error) {
 	proxyHeader := &store.ProxyHeader{
-		Name:    store.ProxyName(i.Name),
-		Weight:  i.Weight,
-		Enabled: i.Enabled,
+		Name:     store.ProxyName(i.Name),
+		Revision: i.Revision,
+		Weight:   i.Weight,
+		Enabled:  i.Enabled,
 	}
 
 	return proxyHeader, nil