feat: add offer reward claim workflow

workflows/pig_claim.json

@@ -0,0 +1,28 @@
+{
+  "name": "小金猪挂机奖励领取",
+  "steps": [
+    {
+      "name": "首页 → 打开小金猪",
+      "expect": [{"template": "home.png", "search": [150, 730, 410, 865]}],
+      "click": [0.135, 0.607]
+    },
+    {
+      "name": "挂机奖励 → 领取（不执行快速扫荡）",
+      "expect": [
+        {"template": "idle_title.png", "search": [170, 285, 390, 365]},
+        {"template": "claim.png", "search": [300, 680, 535, 805]}
+      ],
+      "click": [0.747, 0.738],
+      "wait_absent": [{"template": "claim.png", "search": [300, 680, 535, 805]}],
+      "settle": 1.0
+    },
+    {
+      "name": "关闭奖励弹框并返回首页",
+      "expect": [],
+      "click": [0.5, 0.875],
+      "settle": 0.7
+    }
+  ],
+  "finish": [{"template": "home.png", "search": [150, 730, 410, 865]}],
+  "result": "已点击领取，领取按钮状态已变化，并确认返回首页。奖励到账数量尚未验证，请首次实机运行时核对。"
+}