Add client apply flow and asset uploads

manifest/sample-pack.json

@@ -1,6 +1,9 @@
 {
   "mcVersion": "1.20.1",
   "recommendedJdkVersion": 17,
+  "loaderType": "vanilla",
+  "loaderVersion": "",
+  "loaderInstallerPath": "",
   "serverMinRam": 2048,
   "serverMaxRam": 4096,
   "clientMinRam": 4096,
@@ -10,5 +13,7 @@
   "configEditableFiles": [
     "server.properties",
     "bukkit.yml"
-  ]
+  ],
+  "resourcePackFiles": [],
+  "shaderPackFiles": []
 }