落地无头规则引擎与局内内容，便于命令行复现对战。

规则、卡包与测试放在同一套核心里，避免表现层自行结算。

Co-authored-by: Cursor <cursoragent@cursor.com>

content/packs/pack.example.aftermath.json

@@ -0,0 +1,11 @@
+{
+  "id": "pack.example.aftermath",
+  "name": "Aftermath",
+  "base": false,
+  "coreActions": ["Destroy", "Countdown"],
+  "cards": ["card.example.fuse"],
+  "allOf": [
+    { "kind": "DeckTagAtLeast", "tag": "countdown", "amount": 1 },
+    { "kind": "FriendlyDestroyedAtLeast", "amount": 1 }
+  ]
+}

content/packs/pack.example.base.json

@@ -0,0 +1,8 @@
+{
+  "id": "pack.example.base",
+  "name": "Common Stock",
+  "base": true,
+  "coreActions": [],
+  "cards": ["card.example.spark", "card.example.wisp"],
+  "allOf": []
+}

content/packs/pack.example.vitality.json

@@ -0,0 +1,10 @@
+{
+  "id": "pack.example.vitality",
+  "name": "Vitality",
+  "base": false,
+  "coreActions": ["Heal"],
+  "cards": ["card.example.salve"],
+  "allOf": [
+    { "kind": "HealReceivedAtLeast", "amount": 2 }
+  ]
+}