feat: единая админка runtime-конфигов и indpic (#22)

admin/composer.json

@@ -0,0 +1,8 @@
+{
+  "name": "zoomzilla/preland-admin",
+  "description": "Защищённое управление runtime прелендингов",
+  "license": "proprietary",
+  "require": {"php": "^8.3", "ext-json": "*", "ext-zip": "*", "ext-imagick": "*", "phpseclib/phpseclib": "^3.0"},
+  "config": {"sort-packages": true},
+  "scripts": {"test": ["php tests/backend-review.php", "php tests/backend-http.php"], "test:worker": "php tests/backend-worker.php"}
+}