Add visibility options to micropub config query

micropub.go

@@ -40,6 +40,7 @@ func (a *goBlog) serveMicropubQuery(w http.ResponseWriter, r *http.Request) {
 		result = map[string]any{
 			"channels":       channels,
 			"media-endpoint": a.getFullAddress(micropubPath + micropubMediaSubPath),
+			"visibility":     []postVisibility{visibilityPublic, visibilityUnlisted, visibilityPrivate},
 		}
 	case "source":
 		if urlString := query.Get("url"); urlString != "" {

micropub_test.go

@@ -39,7 +39,7 @@ func Test_micropubQuery(t *testing.T) {
 	testCases := []testCase{
 		{
 			query:      "config",
-			want:       "{\"channels\":[{\"name\":\"default: My Blog\",\"uid\":\"default\"},{\"name\":\"default/posts: posts\",\"uid\":\"default/posts\"}],\"media-endpoint\":\"http://localhost:8080/micropub/media\"}",
+			want:       "{\"channels\":[{\"name\":\"default: My Blog\",\"uid\":\"default\"},{\"name\":\"default/posts: posts\",\"uid\":\"default/posts\"}],\"media-endpoint\":\"http://localhost:8080/micropub/media\",\"visibility\":[\"public\",\"unlisted\",\"private\"]}",
 			wantStatus: http.StatusOK,
 		},
 		{