refactor: use new format for packs

packs/items/Streithammer__3_iORLpplub64kuxb4.json

@@ -0,0 +1,36 @@
+{
+  "_id": "iORLpplub64kuxb4",
+  "name": "Streithammer +3",
+  "type": "weapon",
+  "img": "icons/weapons/hammers/hammer-war-spiked.webp",
+  "effects": [
+    "dcGiLPK2AIDA7NHH",
+    "RWRk7pwQf2vs1Aqv"
+  ],
+  "folder": null,
+  "sort": 0,
+  "flags": {},
+  "system": {
+    "description": "<p>Zweih&auml;ndig, Initiative -4</p>",
+    "quantity": 1,
+    "price": 3256,
+    "availability": "unset",
+    "storageLocation": "-",
+    "equipped": false,
+    "attackType": "melee",
+    "weaponBonus": 6,
+    "opponentDefense": -3
+  },
+  "ownership": {
+    "default": 0
+  },
+  "_stats": {
+    "systemId": "ds4",
+    "systemVersion": "1.18.1",
+    "coreVersion": "10.290",
+    "createdTime": 1668995343258,
+    "modifiedTime": 1668995457592,
+    "lastModifiedBy": "DS4BuildSystem00"
+  },
+  "_key": "!items!iORLpplub64kuxb4"
+}