feat(api)!: show host endpoint (#85)

`http://d/default/info` returns:


```json
{
  "podmanSocketPath": "/Users/danhexon/vm_test/socks/libkrun/bugbox-machine-default-podman-api.sock",
  "sshPort": 61234,
  "sshUser": "root",
  "hostEndpoint": "host.containers.internal"
}
```

BREAKING CHANGE: the `http://d/default/info` returned json array content
is incompatible with the previous json content

Author: ihexon

pkg/api/backend/info.go

@@ -12,12 +12,25 @@ import (
 	"bauklotze/pkg/api/utils"
 )
 
+type Resp struct {
+	PodmanSocketPath string `json:"podmanSocketPath"`
+	SSHPort          int    `json:"sshPort"`
+	SSHUser          string `json:"sshUser"`
+	HostEndpoint     string `json:"hostEndpoint"`
+}
+
 // GetInfos Get machine configures
 func GetInfos(w http.ResponseWriter, r *http.Request) {
 	mc := r.Context().Value(types.McKey).(*vmconfig.MachineConfig)
 	if mc == nil {
 		utils.Error(w, http.StatusInternalServerError, ErrMachineConfigNull)
 		return
 	}
-	utils.WriteResponse(w, http.StatusOK, mc)
+
+	utils.WriteResponse(w, http.StatusOK, &Resp{
+		PodmanSocketPath: mc.GvProxy.HostSocks[0],
+		SSHPort:          mc.SSH.Port,
+		SSHUser:          mc.SSH.RemoteUsername,
+		HostEndpoint:     "host.containers.internal",
+	})
 }